Of great concern is the increase in use of illicit drugs that have become popular among teens and young adults at dance clubs and "raves." These drugs, include MDMA/Ecstasy (methylenedioxymethamphetamine), GHB (gamma hydroxybutyrate), and ketamine (ketamine hydrochloride).

MDMA is a synthetic, psychoactive drug chemically similar to the stimulant methamphetamine and the hallucinogen mescaline.

GHB, is either an odorless, colorless liquid for as a white powder material, is taken orally, and is frequently combined with alcohol. It is often associated with ‘date rape’.

The abuse of ketamine induces hallucinations. Both liquid and powder form of ketamine is injected, consumed in drinks, or added to smokable materials.

Dangers and Health Issues and other stuff

MDMA interferes with the body's ability to regulate temperature, sometimes leading to a sharp increase in body temperature (hyperthermia), resulting in liver, kidney, and cardiovascular system failure, and death. MDMA users also risk increases in heart rate and blood pressure, and symptoms such as muscle tension, involuntary teeth clenching, nausea, blurred vision, faintness, and chills or sweating. Psychological effects of MDMA use can include confusion, depression, sleep problems, drug craving, and severe anxiety. Additionally, these problems can occur during as well as sometimes days or weeks after using the drug.

GHB, and ketamine are all central nervous system depressants.GHB has been shown to produce drowsiness, nausea, unconsciousness, seizures, severe respiratory depression, and coma. Additionally, GHB has increasingly become involved in poisonings, overdoses, date rapes, and fatalities.

The use of ketamine produces effects similar to PCP and LSD, causing distorted perceptions of sight and sound and making the user feel disconnected and out of control. The overt hallucinatory effects of ketamine are relatively short-acting, lasting approximately one hour or less. However, the user's senses, judgment, and coordination may be affected for up to 24 hours after the initial use of the drug. Use of this drug can also bring about respiratory depression, heart rate abnormalities, and a withdrawal syndrome.

Cannabis is a term that refers to marijuana and other drugs made from the same plant. Marijuana is a green, brown, or gray mixture of dried, shredded leaves, stems, seeds, and flowers of the hemp plant (Cannabis sativa). Other forms of cannabis include sinsemilla, hashish, and hash oil. All forms of cannabis are mind-altering (psychoactive) drugs.

The main active chemical in marijuana is THC (delta-9-tetrahydrocannabinol). Short-term effects of marijuana use include problems with memory and learning, distorted perception, difficulty in thinking and problem solving, loss of coordination, increased heart rate, and anxiety.

Marijuana is usually smoked as a cigarette (called a joint) or in a pipe or bong.

Marijuana abuse is associated with many detrimental health effects. These effects can include frequent respiratory infections, impaired memory and learning, increased heart rate, anxiety, panic attacks and tolerance. Marijuana meets the criteria for an addictive drug and animal studies suggest marijuana causes physical dependence and some people report withdrawal symptoms.

Someone who smokes marijuana regularly may have many of the same respiratory problems that tobacco smokers do, such as daily cough and phlegm production, more frequent acute chest illnesses, a heightened risk of lung infections, and a greater tendency toward obstructed airways. Cancer of the respiratory tract and lungs may also be promoted by marijuana smoke. Marijuana has the potential to promote cancer of the lungs and other parts of the respiratory tract because marijuana smoke contains 50 percent to 70 percent more carcinogenic hydrocarbons than does tobacco smoke.

Marijuana's damage to short-term memory seems to occur because THC alters the way in which information is processed by the hippocampus, a brain area responsible for memory formation

According to the 2004 National Household Survey on Drugs, cannabis is the most commonly used illicit drug in Australia. It has many health and safety issues and can no longer be called ‘safe’.

Did you know that:

• Babies born to mothers who use marijuana during pregnancy have eleven times the risk of getting childhood leukemia. These children are the innocent victims of their parents marijuana use. Based on research by Dr. L. Robison in the publication Cancer and Dr. J. Buckley in Cannabis: Physiopathology, Epidemiology, Detection.
• Marijuana smoke produces airway injury, acute and chronic bronchitis, lung inflammation, and decreased pulmonary defences against infection. Smoking one marijuana cigarette leads to airway deposition of four times as much cancer-causing tar as does tobacco smoke. Based on research by Dr. D. Tashkin as reported in the Western Journal of Medicine.
• Cases of cancer, including cancer of the mouth, tongue, larynx, jaw, head, neck, and lungs have been reported in young marijuana smokers that would not occur in tobacco smokers until much later in life. Based on research by reported in Otolaryngology, Head & Neck Surgery, the Journal of the American Medical Association and Southern Medical Journal.
• Marijuana has long been known to trigger attacks of mental illness, such as bipolar (manic-depressive) psychosis and schizophrenia. It has been shown that marijuana users are six times more likely to develop schizophrenia than are non-users. Based on research by of Dr. S. Andreasson published in Britain's The Lancet.
• The use of marijuana leads to the use of other drugs. Of those who use marijuana 3 to 10 times, 20% go on to use cocaine. Of those who use marijuana one hundred or more times, 75% go on to use cocaine. Based on research by as reported in the Journal of Clinical Psychiatry.
• Marijuana causes both dependence and addiction. Addictive use is defined by compulsive repeated use in spite of adverse consequences. Marijuana's effects include tolerance leading to dependence and inability to cease use. Based on research by of Dr. Mark Gold published in his book Marijuana.
• It's not just alcohol that caused impaired accidents. A roadside study of reckless drivers who were not impaired by
  alcohol, showed that 45% of these drivers tested positive for marijuana. Based on research by of Dr. Dan Brookoff, published in the New England Journal of Medicine.
• The effects of marijuana persist much longer than the effects of alcohol. Using a computerised flight simulator, an experiment on pilots showed that their ability to land a plane was still impaired 24 hours after smoking one marijuana cigarette. Based on research by of Dr. V. Leirer in Aviation, Space & Environmental Medicine.
• Children exposed to marijuana prenatally have increased behavioural problems, and they have decreased visual perception, language comprehension, attention span and memory. These children are the innocent victims of their parents marijuana use. Based on research by of Dr. Peter Fried of the Ottawa Prenatal Prospective Study
• In males marijuana use diminishes testosterone production and lowers sperm count. In females, marijuana use disrupts hormone cycles. Marijuana is mutagenic, fetotoxic (poisonous to the foetus) and impairs RNA and DNA synthesis. Based on research by of Dr. Mark Gold in his book Marijuana and Drs. Latour and Nahas in the Medical Journal of Australia.
• Cases of cancer from marijuana use are now well documented. In one California study 90% of young cancer patients are marijuana smokers compared with 40% of young people in California as a whole. Based on research by Dr. P. Donald in Otolaryngology, Head and Neck Surgery .
• In a survey of one hundred and fifty marijuana using students, 59% surveyed report they sometimes forget what a conversation is about before it has ended. 41% report that if they read while stoned they remembered less of what they had read hours later. Based on research by of Dr. Richard Schwartz, Vienna Pediatric Associates in Psychiatric Annals.
• Long-term use of marijuana may cause irreversible memory problems. Marijuana users find it more difficult to separate irrelevant information from the relevant, their reaction times are longer and electrical activity of the brain is slowed. Based on research by from Macquarie University, Sydney in conjunction with Australia's National Drug & Alcohol Research Centre.
• There are significant negative effects of prenatal marijuana exposure on the performance of children in standard
  intelligence tests. On average children exposed prenatally to marijuana will have a lower IQ compared to children who are not exposed. Based on research by of Dr. Day et al, in Neurotoxicology and Teratology.
• Fetal Marijuana Symptoms are similar to Fetal Alcohol Syndrome are two diseases children are born with that are totally preventable. One of the leading specialists in cellular heredity, Dr. Akira Morishima of Columbia University, has said that in his 20 years of research on human cells he has never found any other drug, including heroin, which comes close to the DNA damage caused by marijuana.
• Saying nobody ever died from smoking marijuana is like saying nobody ever died from smoking tobacco. Marijuana contains the same cancer causing chemicals as tobacco. Marijuana contains acetone, hydrogen cyanide, ammonia, carbon monoxide, benzene, benzo pyrene, nitrosamines and many other cancer causing pollutants. Based on research by of G. Huber in Pharmacology Biochemistry and Behaviour.
• Marijuana causes many mental disorders, including acute toxic psychosis, panic attacks, flashbacks, delusions, depersonalisation, hallucinations, paranoia, depression and "uncontrollable feelings of aggression". Based on research by of Dr. Richard Schwartz, Vienna Pediatrics Associates in Pediatric Clinics of North America.

Symptoms of use (for concerned parents):

Dr Ingrid Lantner, a pediatrician and an expert on marijuana use among teenagers, notes these common symptoms of the chronic marijuana-using youngster: red eyes (often "handled" with eye drops, which can be a clue to pot use)... constant fatigue... uncalled for irritability and edginess (the "don't hassle me!" syndrome)... caring less about everything ("the drop-out syndrome") with a resultant drop in school grades... abrupt and unexplained mood changes... increasing friction with peers and family... feelings of paranoia... impaired ability to concentrate and loss of short term memory... flat, expressionless speech... lack of interest in grooming and appearance... increases difficulty in fighting off common infections... cough, asthmatic wheezing, chest pains... skin rashes... irregular menstrual cycle... distorted time sense (when asked to raise a hand in 60 seconds or less... and, of course, impaired driving ability.

It is important for parents to realise that, unlike the alcohol user, most pot-smoking youngsters are able to "come down" from a high and act normally when parents are around. Thus many parents of chronic pot-smoking youngsters may remain unaware of this fact for several years.

Also, in the words of Dr. Dean Parmelee, director of the Adolesence In-patient Services at Charles River Hospital, a teaching affiliate of Boston University School of Medicine:

"Some youngsters show some symptoms of chronic marijuana use; some show other symptoms. And some bright youngsters with outgoing personalities seem to be able to maintain their grades and activities for a few years-although gradually all users, youngsters and adults, compromise their potential, their activities and their lifestyles".

In other words, your teenagers may have no apparent symptoms of marijuana impairment. Except in one area. Driving. No matter how well they tolerate, adjust to or compensate for their pot use in other areas, over 70 research studies show that pot-induced driving impairments remain. And they are dose related. The more one smokes and the more potent the pot, the worse the driving impairments.

Heroin is a highly addictive drug and is the most rapidly acting of the opiates. Heroin is processed from morphine, extracted from the seed pod of certain varieties of poppy plants.

Most illicit heroin is a powder varying in color from white to dark brown. It is injected and brings with it high risk of infection, including HIV and Hepatitis C.

Health effects:

The short-term effects of heroin abuse appear soon after taking the drug. After the initial feeling, the user experiences an alternately wakeful and drowsy state. Due to the depression of the central nervous system, mental functioning becomes clouded. Additionally, breathing may be slowed to the point of respiratory failure.

After repeatedly using heroin for a period of time, the long-term effects of the substance begin to appear in the user. Chronic users may develop collapsed veins, infection of the heart lining and valves, abscesses, and liver disease. Additionally, pulmonary complications, including various types of pneumonia, may also result in the user.

One of the most significant effects of heroin use is addiction. With regular heroin use, tolerance to the drug develops. Once this happens, the abuser must use more heroin to achieve the same intensity or effect that they are seeking. As higher doses of the drug are used over time, physical dependence and addiction to the drug develop.

Within a few hours after the last administration of heroin, withdrawal may occur. This withdrawal produces effects such as drug craving, restlessness, muscle and bone pain, and vomiting. Major withdrawal symptoms peak between 48 and 72 hours after the last dose and subside after about a week. In addition to the effects of the drug itself, users who inject heroin also put themselves at risk for contracting HIV, hepatitis C (HCV), and other infectious diseases.

Abel, E. L., "The Relationship between cannabis and violence: a review", Psychological Bulletin II, 84, 1977, pp. 193-211

Abel, E. L., (PhD), The scientific study of marihuana, Chicago : Nelson-Hall, 1973

Adams, I. B., Martin, B. R., Cannabis: pharmacology and toxicology in animals and humans,

Addiction, 91 (11), 1996, pp. 1585-1614

Advisory Committee on Illicit Drugs, Cannabis and the law in Queensland : a discussion paper, July 1993, table 5.7 p. 43

Allebeck, P. Adamsson, C., Engstrom, A., "Cannabis and schizophrenia: a longitudinal study of cases treated in Stockholm County", Acta Psychiatrica Scandinavica, 88, 1993, pp. 21-24

"American Bar Association provides leadership in meeting public health challenge of illicit drugs", Committees of Correspondence : Drug Prevention Newsletter, April 1990, pp. 1-3

Andréasson, S., Allebeck, P., Engstrom, A., Rydberg, U., "Cannabis and schizophrenia : a longitudinal study of Swedish conscripts", The Lancet, December 26, 1987, pp. 1483-1485

Andréasson, S., Allebeck, P., Rydberg, U., "Schizophrenia in users and Nonusers of cannabis", Acta Psychiatrica Scandinavica, 79, 1989, pp. 505-510

Andreasson, S., Engstrom, A., Allebeck, P., Rydberg, "Cannabis and Schizophrenia a longitudinal study of Swedish conscripts", The Lancet, December 26, 1987; April 30, 1988

Arnold, M. J., and Laidler, T. J., Situational and environmental factors in alcohol related violence : a report. Report 7 in a series of reports prepared for the National Symposium on Alcohol Misuse and Violence, Canberra, ACT : A.G.P.S., 1994, pp. 32-33 Ashwood, R., "Management of a group of young people with possible drug induced psychosis by alcohol and drug service and mental health service", Drug & Alcohol Nursing in Australia - Keeping Ahead: DANA 9th Annual Conference, 1995, pp. 45-50 Australian Bureau of Criminal Intelligence, 1993 Australian Drug Intelligence Assessment, p. 22

Baker, H. M., Suicide/schizophrenia : consequences of acute and chronic cannabis use : presented to the Joint Parliamentary Committee on the National Crime Authority Inquiry into Drugs, Crime and Society, Maryborough, Qld., 1988

Baker, H. M. 1996, Suicide/Schizophrenia:  Consequences of Acute and Chronic Cannabis Use, Presented to Professor Pierre Baume, Director, Australian Institute for Suicide Research Prevention, Belmont Provate Hospital, Brisbane, 1996.

Baker, H. M., An update - 1989, R & J McTaggart & Co. : Hervey Bay, Australia, February 1989

Banerjee, S. R. & Synder, S. H., Methyltetrahydrofolic acid mediates N and O methylation of biogenic amines, 1973

Barbers, Richard G., et. al., "Chemotaxis of peripheral blood and lung leukocytes obtained from tobacco and marijuana smokers", Journal of Psychoactive Drugs, Vol 20(1), Jan-Mar 1988, pp. 15-20

Barry, H. & Kubena, R., Acclimation to laboratory alters response of rate to delta-9-tetrahydrocannabinol, 1969

Behnke, M. and Eyler, F. D., "The Consequences of prenatal substance use for the developing fetus, newborn, and young child", The International Journal of the Addictions, 28(13), 1993, pp. 1341-1391

Bell, R., Pavis, S., Cunningham-Burley, S., Amos, A., Young men’s use of cannabis: exploring changes in meaning and context over time. In Drugs: Education, Prevention and Policy 5 (2) July 1988: 141-155

Berman, Alan L., Schwartz, Richard, H., "Suicide attempts among adolescent drug users", American Journal of Diseases of Children, Vol. 144, March 1990, pp. 310-314Bernhardson, and Gunne 1972

Biernson, G., "Storage of marijuana in the body", Committees of Correspondence : Drug Awareness Information Newsletter, January 1990

Bland, R. C., Newman, S. C. and Orn, H., "Schizophrenia: lifetime co-morbidity in a community sample", Acta Psychiatrica Scandinavica, 75, 1987, pp. 383-391

Bonner, Robert C., Administrator, Dept. of Justice, Drug Enforcement Administration, "Marijuana scheduling petition; denial of petition; remand", Federal Register, Vol. 57, No. 59, Thursday, March 26, 1992, pp. 10499 10508

Bosworth, K. and Cueto, S., "Drug abuse prevention curricula in public and private schools in Indiana", Journal of Drug Education, Vol. 24 (1), 1994, pp. 21-31

Botvin, Gilbert J., et. al., "Preventing adolescent drug abuse through a multimodal cognitive- behavioral approach: results of a 3-year study", Annual Review of Addictions Research and Treatment, 1992, pp. 473-487

Botvin, G.J., Malgady, R.G., Griffin, K.W., et al, Alcohol and marijuana use among rural youth: interaction of social and intrapersonal influences. In Addictive Behaviors 23 (3) May/June 1998: 379-387

Brady, J. E., "The evidence against marihuana builds", New York Times, May 21, 1980

Budney, A. J., Bickel, W. K., Amass, L., Marijuana use and treatment outcome among opioid-dependent patients, Addiction, 93 (4), 1998, pp. 493-503

Bush, Patricia J. and Iannotti, Ronald, J., "Alcohol, cigarette, and marijuana use among fourth-grade urban schoolchildren in 1988/89 and 1990/91", American Journal of Public Health, Vol. 83, No. 1, January 1993, pp. 111-114

Cain, Arthur H., "The psychology of drugs", Young People and Drugs, New York : John Day, 1969, pp. 71-104

Capriotti, Richard M., et. al., "Effects of marijuana on the task-elicited physiological response", Drug and Alcohol Dependence, 21, 1988, pp. 183-187

Carlson, Katherine A., "Identifying the outcomes of prevention: results of a longitudinal study in a small city school district", Journal of Drug Education, Vol. 24(3), 1994, pp. 193-206

Cederquist, T., "Experience and possibilities of the Swedish Narcotics Officers Association and interstate effects of changes in drug policies", I. International Symposium Against Drugs in Switzerland : Ways to a Drug Free Society and Physiopathology of Illicit Drugs, 19th/20th November 1990, Kongresshaus, Zurich, pp. 397-405

Chacin, S., Women's Marijuana Problems: An Overview with Implications for Outreach, Intervention, Treatment, and Research, Chemical Dependency: Women at Risk, pp. 129-167

Chait, L. D. and Pierri, J., "Some physical characteristics of nida marijuana cigarettes", Addictive Behaviors, Vol. 14, 1989, pp. 61-67

Chen, K., Kandel, D.B., Predictors of cessation of marijuana use: an event history analysis. In Drug and Alcohol Dependence 50 (2) April 1998: 109-121

Chen, K., Kandel, D. B., Davies, M., Relationships between frequency and quantity of marijuana use and last year proxy dependence among adolescents and adults in the United States, Drug and Alcohol Dependence 46, 1997,pp. 53-67

Chiles, J. A. (M.D.), Strosall, K. (PhD) et. al., "The 24 hours before hospitalization: factors related to suicide attempting", American Association of Suicidology, Vol. 16 (3), Fall 1986

Christie, MacDonald J. and Chesher, Gregory, B., "The human toxicity of marijuana: a critique of a review by Nahas and Latour", Drug and Alcohol Review, 13, 1994, pp. 209-216

Clark, Robert R., "Marijuana use associated with first episode of psychiatric illness in an adolescent population", The American Journal on Addictions, Vol. 3, No. 1, Winter 1994, pp. 67-71

Cleghorn, John M., et. al., "Substance abuse and schizophrenia: effect on symptoms but not on neurocognitive function", Journal of Clinical Psychiatry, 52:1, January 1991, pp. 26-30

Coggans, N. and McKellar, S., "Drug use amongst peers: peer pressure or peer preference?", Drugs: education, prevention and policy, Vol. 1, No. 1, 1994

Cohen, S., "Marihuana research : selected recent findings", Drug abuse and alcoholism newsletter, Vol. 15 (1) :1-3

Commonwealth Department of Health, Housing, Local Government and Community Services, Handbook for medical practitioners and other health care workers on alcohol and other drug problems, Canberra: A.G.P.S., 1993, pp. 49-52

Commonwealth Department of Community Services and Health, Statistics on drug abuse in Australia 1988: an information document for use in association with the National Campaign Against Drug Abuse, Canberra: A.G.P.S.,1988

Commonwealth Department of Community Services and Health, Statistics on drug abuse in Australia 1989: an information document for use in association with the National Campaign Against Drug Abuse, Canberra: A.G.P.S.,1990, pp.31-34

Commonwealth Department of Health, Drugs of Dependence Branch, Cannabis: a review of some important national inquiries and significant research reports, Canberra : A.G.P.S., 1984

Conte, H. R. & Plutchik, R., Journal of Psychiatric Research (Oxford), 10 (341) : 181- 188, 1974

Cook, C. C. H., Alcohol and aviation Review, Addiction 92 (5), pp. 539-555

Crabbe, John C., et. al., "Genetic determinants of ethanol reinforcement", Annals of the New York Academy of Sciences, 654, 1992, pp. 302-310

Criminal Justice Commission, Report on cannabis and the law in Queensland, Toowong, Qld.: Criminal Justice Commission, June 1984

Crowley, T. J., Macdonald, M. J., Whitmore, E. A., Mikulich, S. K., Cannabis dependence, withdrawal, and reinforcing effects among adolescents with conduct symptoms and substance use disorders, Drug and Alcohol Dependence 50, 1998, pp. 27-37

Day, Nancy L. and Richardson, Gale A., "Prenatal marijuana use: epidemiology, methodologic issues, and infant outcome", Clinics in Perinatology, Vol. 18, No. 1, March 1991, pp. 77-90

Deahl, M., "Editorial : cannabis and memory loss", British Journal of Addiction, 86, 1991, pp. 249-252

Debruyne, D., Albessard, F., Bigot, M. C., Moulin, M., Comparison of three advanced chromatographic techniques for cannabis identification, Bulletin on Narcotics, Vol. XLVI, No. 2., 1994, pp. 109-121

Dews, Peter B., et. al., Marihuana: biochemical, physiological and pathological aspects, MSS Information Corporation, 1972, pp. 132-143

Dews, P. B., "In marihuana - psychological effects", Collected Works, 1973 Diekhofer, K. & Goenechea, S., "Toxicity of cannabis: first communication in Germany",

Medizinische Welt (Stuttgart), 23 (21) : 779-782, 1972Dixon, L., et. al., "Acute effects of drug abuse in schizophrenic patients: clinical observations and patients self reports", Schiz. Bull., 16, 1990, pp. 69-70

Domino, E. F., Cannabinoids and the cholinergic system - effects of delta-9-tetrahydrocannabinol on regional brain acetylcholine, New York, 1978

Domino, E. F., Cannabinoids and the cholinergic system, 1981Donnelly, N. and Hall, W., Patterns of Cannabis Use in Australia. Monograph series no. 27, Canberra :A.G.P.S., 1994

Drug education in Queensland - a summary report - no. 3 in a series, June 1988

Drugs, crime and society : report by the Parliamentary Joint Committee on the National Crime Authority, Canberra: A.G.P.S., 1989, p.38

Dupont, R. D. (M.D.), Presented at the Plenary luncheon session, Texas Medical Association, Dallas, Texas, 1986

Dupont, R. L. (M.D.), Getting tough on gateway drugs, American Psychiatric Press, 1984, pp. 33-57

Dupont, R. L. (M.D.), "The counsellor's dilemma - treating chemical dependence at college", Journal of the College Student

Dyck, R. J., Bland-Newman, R. C. & Orn, H., "Suicide attempts and psychiatric disorders on Edmonton", Acta Psychiatry Scandinavica, 77 (suppl 338) : 64-71

Edwards, J. G., "Cannabis and the question of dependence", Report of the expert Group on the Effects of Cannabis Use, 1982

Ellickson, Phyllis L., Bell, Robert M., Harrison, Ellen R., "Changing adolescent propensities to use drugs: results from project ALERT", Health Education Quarterly, Vol. 20(2), Summer 1993, pp. 227-242

Ernest, L. Abel, PhD, The scientific study of marihuana, 1976, pp. 177-255

Extract from Goodman & Gilman the Pharmacological Basis of Therapeutics, Eighth Edition - 1991, Cannabinoids (Marihuana)

Feingold, A., Kranzler, H. R., Rounsaville, B. J., Generalizability of the Type A/Type B Distinction Across Different Psychoactive Substances, American Journal of Drug and Alcohol Abuse 22 (3), 1996, pp. 449-462

"Four surveys of drug use", Technical Information Bulletin, No. 70, Nov 1982, pp. 11-31

Fowler, R. C. (M.D.),& Rich C. L. (M.D.) & Young, D. (M.D.), "San Diego Study", Arch Gen. Psychiatry, Vol. 13, Oct 1986

Fowler, Dr I. L., Substance abuse and schizophrenia : a pilot study, Merewether, N.S.W., November 1992

Freeman, T., Cameron, J. L. & McGhie, A., Studies in psychosis, New York : International University Press, 1965

Freedman, A. M., Kaplan, H. I. & Saddock, B. J., Comprehensive textbook and psychian 2, Maryland: Waverley Press Inc., 1975

Gallager, D. W., Sanders-Bush, E., & Sulser, F., Dissociation between behavioural effects and changes in metabolism of cerebral serotonin following delta-9 tetrahydrocannabinol, 1971

Gibson, G. T., Baghurst, P. A., and Colley, D. P., "Maternal alcohol, tobacco and cannabis consumption and the outcome of pregnancy", Aust. and N. Z. Journal of Obstetrics and Gynaecology, 23:15, 1988, pp. 15-18

Gilkeson, Robert C., Marijuana is retarding youth & causing behavioural changes, [paper - 1 sheet]

Gilkeson, Robert C., "Marijuana: toxic to cells - synopsis from the videotape 'Marijuana: myths and misconceptions'", Committees of Correspondence : Drug Prevention Newsletter, August 1990

Gilkeson, R., (M.D.), Associate Professor of Psychology, Case Western School of Medicine, L.A., California

Greyner, Brin F. S., Lubrosky, L., and Solowij, N., Treatment manual for supportive- expressive dynamic psychotherapy : special adaptation for treatment of cannabis (marijuana) dependence. Technical report no. 26, Sydney, Australia : National Drug and Alcohol Research Centre, 1995

Gruber, Amanda J., and Pope Jr., Harrison G., "Cannabis psychotic disorder : does it exist", The American Journal on Addictions, Vol. 3, No. 1, Winter 1994, pp. 72-83

Grunfeld, Y., & Edery, H., Psychopharacological activity of the active constituents of hashish and some related cannabinoids, 1969 Gustafson, David H., et. al., "Predicting adolescent problem use of marijuana: development and testing of a Bayesian model", The International Journal of the Addictions, 29(7), 1994, pp. 861-886

Hall, W., "The public health significance of cannabis use in Australia", Australian Journal of Public Health, Vol. 19, No. 3, 1995, pp. 235-242

Hall, W., Solowij, N., and Lemon, J., The Health and Psychological Consequences of Cannabis Use. Monograph series no. 25, Canberra : A.G.P.S., 1994

Hall, W., Cannabis use and psychosis. Sydney: National Drug and Alcohol Research Centre, 1988. 24 leaves

Harley-Masson, J., (as cited in H. Osmond & J. Smythies) Schizophrenia - a new approach, 1952

Harrer, G. "Clinical experience with abuse of hallucinogenic drugs", Austria Offentliche Gesundeitsuesen Stuttgart, 33 (9) : 541-548, 1971

Harris, L. S. (PhD), "Problems of drug dependence 1985", 47th Annual Meeting, the Committee on Problems of Drug Dependence, U.S. Government Printing Office, 1986

"Health effects of cannabis use", Technical Information Bulletin, No.70, Nov 1982. pp. 1-10

Hellerstein, D. J. (M.D.) & Meehan, Beth C. S. W., "Outpatient group therapy for schizophrenic substance abusers", American Journal Psychiatry, 144 : 10, October 1987

Hollister, L. E., "Cannabis and the development of tolerance", Marihuana – biological effects, Pergamon Press: Oxford, 1979, pp. 585-589

Howley, R. A., "The purposes of pleasure! A reflection on youth and drugs", The Independent School Press, 1983

Huberman, E., "Marijuana increases disease risk by inhibiting white blood cells", Committees of Correspondence: Drug Awareness Information Newsletter, April1989

Hunt, C. A. and Jones, R. T., "Tolerance and disposition of tetrahydrocannabinol in man", Journal of Pharmacology and Experimental Therapy, 215, 1980, pp. 33-34

Husain, S. & Khan, I., W.H.O. symposium of over 125 scientists held August 1984 at a campus of Oxford University - an update on cannabis research

Idanpaan-Heikkila, J., "Cannabis : point of view of W.H.O.", Cannabis: Physiopathology, Epidemiology, Detection, 1995, pp. 271-273

International Narcotics Control Board, Report of the International Narcotics Control Board for 1995, New York: United Nations, 1996

Järbe, T. U. C., Hiltunen, A. J., and Mechoulam, R., "Stereospecificity of the discriminate stimulus functions of the dimethylheptyl homologs of 11-hydroxy-D⁸-tetrahydrocannabinol in rats and pigeons", Journal of Pharmacol. Exp. Ther., 250, 1989, pp. 1000-1005

Johnson, Bankole A., "Cannabis", Clinical syndromes, 1989, pp. 69-76

Johnson, Bankole A., Smith, Brian L., Taylor, P., "Cannabis and schizophrenia", The Lancet, March 12, 1988, pp. 592-593

Johnson, Mark E., et. al., "Reading abilities of drug users in Anchorage, Alaska", Journal of Drug Education, Vol. 25 (1), 1995 pp. 73-80

Johnson, R.A., Gerstein, D.R., Initiation of use of alcohol, cigarettes, marijuana, cocaine, and other substances in US birth cohorts since 1919. In American journal of Public Health 88 (1), January 1998: 27-33

Jones, H. C. & Lovinger, P. W., The marijuana question and science's search for an answer, Dodd, Mead

Kandel, D. "Stages in adolescent involvement in drug use", Science I. S. D. 1912, 1975

Kandel, C. B. & Logan J. A., "Patterns of drug use from adolescence to young adulthood: 1. Periods of risk for initiation, continued use and discontinuation", American Journal of Public Health, 74 : 660-666, 1984

Kaufman, E. M. D. (Chairperson)), Khantzian, E. M. D., Westermeyer, J., Czechoroica, D. (M. D.),

Mitin, S., Meyer, R., Position statement on psychoactive substance use and dependence : update on marihuana and cocaine, the Committee on Drug Abuse approved by the Assembly at the Council on Psychiatric Services, November 1986

Kerr, P. "Increases in potency of marihuana prompt new warnings for youth", New York Times, September 25, 1986

Kleinmann, P. H. (PhD), Wish E. D. (PhD) et. al., "Daily marihuana use and problem behaviours among adolescents", International Journal of the Addiction, 23 (1) : 87-107, 1988

Koop, Surgeon General U.S.A. Report, 1988

Kozicki, Z. A., "Why do adolescents use substances?", Alcohol and Drug Education, 1986, 32, pp. 1-7

Kristjansson, E., Allebeck, P., Witedt, B., Validity of the diagnosis Schizophrenis in a psychiatric patient register, Nord Psykiatr Tiddskr, 1987; 41 : 229-34

Labouvie, E., Bates, M. E., Pandina, R. J., Age of First Use: Its Reliability and Predictive Utility, Journal of Studies on Alcohol, pp. 638-643, November, 1997

Lachance, R., "Effects of marijuana [sic] on schizophrenics", Psychiatric Nursing, April 1986, pp. 11-13

Lachance, R., "Effects of marihuana on schizophrenics" Psychiatric Nursing, April 1986

Langenbucher, J., et. al., "Lifetime DSM-IV diagnosis of alcohol, cannabis, cocaine and opiate dependence: six-month reliability in a multi-site clinical sample", Addiction, 89, 1994, pp. 1115-1127

LeDuc, P. A., Mittleman, G., Schizophrenia and psychostimulant abuse: a review and re-analysis of clinical evidence, Psychopharmacology 121: 1995, pp. 407-427

Letter from Dr J. McGrath, Director of Postgraduate Studies, Queensland Department of Health, to Dr H. Baker, Australian Parents for Drug-Free Youth, 10 April 1989

Letter from M. Bolton, Director, Queensland Department of Health, to Mr Herschel M. Baker, President, Australian Parents for Drug Free Youth, 17 April 1989

Lettiere, 1978

Leukefeld, Carl G. and Bukoski, William J., "Drug abuse prevention evaluation methodology: a bright future" Journal of Drug Education, Vol. 21(3), 1991, pp. 191-201

Levy, M. and Koren, G., "Obstetric and neonatal effects of drugs of abuse", Emergency Medicine Clinics of North America, Vol. 8, No. 3, August 1990, pp. 633-652

Linszen, Don H., Dingemans, Peter M., Lenior, Marie, E., "Cannabis abuse and the course of recent-onset schizophrenic disorders", Arch. Gen. Psychiatry, Vol. 51, April 1994, pp. 273-279

Little, P. J., et. al., "Pharmacology and stereo selectivity of structurally novel cannabinoids in mice", Journal of Pharmacol. Exp. Ther., 247, 1988, pp. 1046-1051

LoSciuto, L. and Ausetts M. A., "Evaluation of a drug abuse prevention program: a field experiment", Addictive Behaviours, Vol. 13, 1988, pp. 337-351

Lyons, M.J., Toomey, R., Meyer, J.M., et al., How do genes influence marijuana use? The role of subjective effects. In Addiction, 92 (4) April 1997: 409-417

McGuire, Phillip K., et. al., "Cannabis and acute psychosis", Schizophrenia Research, 13, 1994, pp. 161-168

Magura, S., Kang, S-Y., and Shapiro, Janet L., "Outcomes of intensive AIDs education for male adolescent drug users in jail", Journal of Adolescent Health, Vol. 15, Iss. 6, 1994, pp. 457-463 Mann, P., Pot safari, New York : Woodmere Press, 1982, 1985, p.73, 78

Marihuana and health - fourth annual report to the U. S. Congress, Washington D.C. : Government Printing Office, 1975

Martin, Billy R., et. al., "Pharmacological evaluation of dimethylheptyl analogs of D⁹-THC: reassessment of the putative three-point cannabinoid-receptor interaction", Drug and Alcohol Dependence, 37, 1995, pp. 231-240

Martinez-Arevalo, M. J., Calcedo-Ordoñez, A., Varo-Prieto, J. R., "Cannabis consumption as a prognostic factor in schizophrenia", British Journal of Psychiatry, 164, 1994, pp. 679-681

Mason, A. P. and McBay, A. J., "Ethanol, marijuana and other drug use in 600 drivers killed in single-vehicle crashes in North Carolina 1978-81", Journal of Forensic Sciences, 29, 1984, pp. 788-792

Mathers, D.C. and Ghodse, A. H., "Cannabis and psychotic illness", British Journal of Psychiatry, 161, 1992, pp. 648-653

Maugh, T., "Marijuana 'justifies serious concern' ", Science, 215, 1982, pp. 1488-1489

Maykut, Health consequences of acute and chronic marihuana use, 1984, pp. 87-105

Mednick, S. A., & Schulsinger, F., Some premorbid characteristics related to breakdown in children with schizophrenic mothers, 1968

Meyer, R. E., "Psychiatric consequences of marijuana use", Marijuana and Health Hazards, Chapter 16

Meyers, M. J., "More about the 'new' marihuana", Professional Counsellor, Vol. 1 (6) : 3, 1987

Miller, Norman S., "Psychiatric diagnosis in drugs and alcohol addiction", Treatment of the Addictions: Applications of Outcome Research for Clinical Management, 1995, pp. 75-92

Miller, T. Q., Volk, R. J., Weekly Marijuana Use as a Risk Factor for Initial Cocaine Use: Results from a Six Wave National Survey, Journal of Child and Adolescent Substance Abuse Vol. 5 (4), 1996, pp. 55-78

Millsaps, Cheryl L. Azrin, Richard L., Mittenberg, W., "Neuropsychological effects of chronic cannabis use of the memory and intelligence of adolescents", Journal of Child & Adolescent Substance Abuse, Vol. 3(1), 1994, pp. 47-55

"More potent drug in use", St George and Sutherland Shire Leader, 17 August, 1995

Morrison, V., "Psychoactive substance use and related behaviours of 135 regular illicit drug users in Scotland", Drug and Alcohol Dependence, 23, 1989, pp. 95-101

Murphy, C., Cannabis withdrawal. In Proceedings of the 1996 Autumn School of Studies on Alcohol and Drugs: St. Vincent's Hospital, Melbourne, 9-11 May, 1996. pp. 171-176.

Murphy, G. E. (M.D.), "Suicide and substance abuse", Arch Gen. Psychiatry, Vol. 45, June 1988

Murray, J. B., "Marijuana's effect pm Ji, am cognitive functions, psychomotor function and personality", Journal of General Psychology

Nahas, Gabriel G., "Drugs, the brain and the law", Notre Dame Journal of Law, Ethics & Public Policy, Vol. 5, Issue No. 3, 1991, pp. 729-746

Nahas, G., Latour, C., Hardy, N., Pathophysiology related to marihuana smoking, October 1991

Nahas, G., Latour, C., Hardy, N., Pathophysiology related to marihuana smoking : summary of paper to be presented at the International Conference on "Toxicology of Combustion Products" (University of Pavia, October 28), [to be published 1992]

Nahas, Gabriel G., "Lethal cannabis intoxication", New England Journal of Medicine, 284 (14) : 792, 1971

Negrete, Juan C., "Editorial : cannabis and schizophrenia", British Journal of Addiction, 84, 1989, pp. 349-351

Negrete, Juan C., "What's happened to the cannabis debate?", British Journal of Addiction , 83, 1989, pp. 359 372

Negrete, J. C., et. al., "Cannabis effects the severity of schizophrenic symptoms: results of a clinical survey", Psych. Med., 16, 1986, pp. 515-520

Negrete, Juan & Knappwerner, The effects of cannabis use on the clinical condition of schizophrenics, Dept. of Health and Human Services: Maryland 20857, 1986

Newman, R. and Miller, N., "Substance abuse and psychosis", Current Opinion Psychiatry, 5, 1992, 25-28

Nirenberg, T. D., Cellucci, T., Liepman, M. R., Swift, R. M., Sirota, A. D., Cannabis Versus Other Illicit Drug Use Among Methadone Maintenance Patients, Psychology of Addictive Behaviors Vol. 10, No. 4, 1996, pp. 222-227

N.S.W. Drug and Alcohol Authority Survey, 1984 - Homel, Flaherty, Trebilco and Dunoon.

Oviedo, A., Glowa, J., and Herkenham, M., "Chronic cannabinoid administration alters cannabinoid receptor binding in rat brain: a quantitative autoradiographic study", Brain research, 616, 1993, pp. 293-302

Perlman, D. C., Perkins, M. P., Paone, D., Kochems, L., Salomon, N., Friedmann, P., Jarlais, D. C. D., AShotgunning@ as an Illicit Drug Smoking Practice, Journal of Substance Abuse Treatment, Vol. 14, No. 1, pp. 3-9, 1997

Peyrot, M., Yen, S., and Baldassano, Carole A., "Short-term substance abuse prevention in jail: a cognitive behavioral approach", Journal of Drug Education, Vol. 24(1), 1994, pp. 33-47

Queensland School Drug Education Programs Evaluation Committee June 1988, Drug education in Queensland: a summary:report on the survey of levels of drug use and attitudes to drug use among Queensland students. Report no. 3 in a series, Nathan, Qld. : Health Services Research Team, Griffith University,1988

Rajs, J., Fugelstad, A., Jonsson, J., Cannabis-associated deaths found in medico-legal postmortems in Stockholm, Sweden: preliminary report, Sweden, 199?

Redding, F. K., Modification of sensory cortical evoked potentials by hippocampal stimulation, 1967

Reilly, D., Didcott, P., Swift, W., Hall, W., Long-term cannabis use: characteristics of users in an Australian rural area. In Addiction 93 (6) June 1998: 837-846 Response by the Queensland Branch of the Australian Medical Association to the Discussion Paper' Cannabis and the Law in Queensland', 30 September 1993

Reynolds, I. Rob, Marilyn I., "The role of family difficulties in adolescent depression, drug-taking and other problem behaviours", The Medical Journal of Australia, Vol. 149, September 5, 1988, pp. 250-256

Richard, M. L., Liskow, B. I., and Perry, P. J. "Recent psychostimulant use in hospitalised schizophrenics", Journal of Clinical Psychiatry, 46, 1985, pp. 79-83

Ried D. L., Martion, O. B. & Weaver, L. C., "Factors associated with the drug use of fifth through eighth grade students", Drug Education, Vol. 17 (2), 1987

Robins, L. N., & Murphy, G. E., "Drug use in a normal population of young negro men", American Journal of Public Health, 57 (9) : 1580-1596, 1967

Rollin, Stephen A., et. al., "Project KICK: a school-based drug education health promotion research project" Counselling Psychology Quarterly, Vol. 8, No. 4, 1995, pp. 345-359

Rosenkrantz, H., "In report of an addiction research foundation", World Health Organization (ARF/WHO) Scientific Meeting on Adverse Health or Behavioural Consequences of Marihuana Use, Toronto: ARF/WHO, 1981

Rottanburg, D., et. al., "Cannabis-associated psychosis with hypomania features", Lancet, ii, 1982, pp. 1364 1366

Russell, George K., Marijuana today : a compilation of medical findings for the layman, New York : Myrin Institute for Adult Education, 1977, pp. 16-17, 28-35, 40-47, 62-65

Russell, G. K. (Dr.), Marihuana Today, 1978, p. 14, Chapters 3 & 4

Ryser, P. C., "Students and drug abuse 1974 - 1980", Journal of S. H., Vol. 53, No. 7, pp. 435-436, September 1983

Schlosser, D., An investigation of court referrals and voluntary referrals at Bourke St. Drug Advisory Service (Sydney , NSW): summary report, New South Wales Drug and Alcohol Authority Research Grant Report Series, Sydney: New South Wales Drug and Alcohol Authority, May 1984

Schneier, Franklin R. and Siris, Samuel G., " A review of psychoactive substance use and abuse in schizophrenia patterns of drug choice", The Journal of Nervous and Mental Disease, Vol. 175, No. 11, November 1987, pp. 641-652

Scheier, Lawrence M. and Newcomb, Michael D., "Psychosocial predictors of drug use initiation and escalation: an expansion of the multiple risk factors hypothesis using longitudinal data", Contemporary Drug Problems, Spring 1991, pp. 31-73

Schuchard, Marsha Keith, Marijuana : an environmental pollutant, Atlanta, GA: PRIDE, 1992

Schwartz, Richard H., "Persistent impairment of short-term memory associated with heavy marijuana use", Committees of Correspondence: Drug Prevention Newsletter, June 1990

Schwartz, Richard H., and Beveridge, Roy, A., "Marijuana as an antiemetic drug; how useful is it today?: opinions from clinical oncologists", Journal of Addictive Diseases, Vol. 13(1), 1994, pp. 53-65

Schwartz, Richard H., Hoffman, Norman, G., and Jones, R., "Behavioural, psychosocial, and academic correlates of marijuana usage in adolescence: a study of a cohort under treatment", Clinical Pediatrics, Vol. 26, No. 5, May 1987, pp. 264-270

Seeman, M. V., Lang, M., and Rector, N., "Chronic schizophrenia: a risk factor for HIV?", Can. Journal of Psychiatry, 35, 1990, pp. 765-768

Smith, D. E., "In Memoriam (Sidney Cohen M.D.)", Journal of Psychoactive Drugs, Vol. 19 (2) : ii, 1987

Smith, D. E., "The acute and chronic toxicity of marihuana", Journal of Psychedelic Drugs, Z : 37-48, 1968

Soderstrom, Carl A., et. al., "Marijuana and alcohol use among 1023 trauma patients", Arch. Surg., Vol. 123, June 1993, pp. 733-737

Spencer, D. J., "Cannabis-induced psychosis", Br. J. Addict, 65:369-372, 1970 Stabler, Rodney T., Fahlman, Robert C., and Keele, S. A., "Illicit traffic and abuse of cannabis in Canada", Bulletin on Narcotics, 1985

Sussman, S., Stacy, A. W., Dent, C. W., Simon, T. R., Johnson, C. A., Marijuana Use: Current Issues and New Research Directions, Journal of Drug Issues, 26 (4), pp. 695-733, 1996

Talbot, J. A., Teague, J. W., "Marihuana psychosis", Journal of the A.M.A., 210 : 299-302, 1969

Tart, C. T., Marihuana intoveration common - experiences nature, 226 (5147) : 701-704, 1970

Tashkin, Donald P., Simmons, M., and Clark, V., "Effect of habitual smoking of marijuana alone and with tobacco on nonspecific airways hyperreactivity", Journal of Psychoactive Drugs, Vol. 20 (1), Jan-Mar 1988, pp. 21-25

Technical Information Bulletin, No. 72, 1984, pp. 1-3

Tennont, F. S. Jr., "The clinical syndrome of marihuana dependence", Psychiatric Annals, Vol. 16 (4) : 225-234

Thalore, V. R., Shukla, S. P., Cannabis psychosis and paranoid schizophrenis arch genpsychiatry 33:383-386

Thalore, V. R. and Skukla, S. R., "Cannabis psychosis and paranoid schizophrenia", Archives of General Psychiatry, 33, 1976, pp. 383-386

Thomas, H., "Psychiatric symptoms in cannabis users", British Journal of Psychiatry, 163, 1993, pp. 141-149

Treffert, Darold A., "Marijuana use in schizophrenia: a clear hazard", American Journal of Psychiatry, 135:10 October 1978, pp. 1213-1215

Tubman Johnathon G., et. al., "Qualitative relationships between substance use and adjustment during adolescence", Journal of Substance Abuse, 3, 1991, pp. 405-414

Tunving, K., "Psychiatric aspects of cannabis use in adolescents and young adults", Drug and Alcohol Abuse in Children and Adolescence Pediatrician, 14, 1987, 83-91

Turner, C. E., Personal communication to National Academy of Sciences, 1981

University of Maryland, Task force on drug policies, enforcement and education, 1986

University of Virginia, Report of the task force on alcohol and drug abuse and education of the University of Virginia, Charlottesville, V. A., 1970

U.S. Congress, House Committee on Government Operations, Commercial production and distribution of marijuana, U.S.A., 1983

Walker, R., "The Solution or the problem? The role of schools in drug education", Health Promotion Journal of Australia, 2(1), 1992, pp. 43-49

Watten, R.G., Use of drugs, coping styles, mental absorption and some outcomes related to health and social activity. In European Addiction Research 3 (4) December 1997: 192-198

Weil, A. T., "Adverse reactions to marihuana - classification and suggested treatment", New England Journal of Medicine, 282 (18) : 997-1000, 1970

Whitfield, R. M., Bechtel, L. M., Starich, G. H., The Impact of Ethanol and Marinol/Marijuana Usage on HIV+/AIDS Patients Undergoing Azidothymidine, Azidothymidine/Dideoxycytidine, or Dideoxyinosine Therapy, Alcoholism: Clinical and Experimental Research Vol. 21, No. 1, 1997, pp. 122-127

Wiesbeck, G. A., Schuckit, M. A., Kalmijn, J. A., Tipp, J. E., Bucholz, K. K., Smith, T. L., An evaluation of the history of a marijuana withdrawal syndrome in a large population, Addiction 91 (10), 1996, pp. 1469-1478

Wise, C. D., & Stein, L., Dopamine beta-hydroxylase deficits in the brains of schizophrenic patients, 1973

Wu, Tzu-Chin, et. al., "Influence of marijuana potency and amount of cigarette consumed on marijuana smoking pattern", Journal of Psychoactive Drugs, Vol. 20(1), Jan-Mar 1988, pp.43-46

Wu, Tzu-Chin, et. al., "Marijuana and tobacco: comparative hazards", Brown University Digest of Addiction Theory and Application, Vol. 7, No. 3, 1988, pp. 29-31

Wyatt, R. J., Murphy, D. L., Belmaker, R., Cohen, S., Donnelly, C. H. & Pollin, W., Reduced monomaine oxidase activity in platelets - a possible genetic marker for vulnerability to schizophrenia, 1973

Yamaguchi, K. & Kandel D. B., "Patterns of drug use from adolescence young adulthood II – sequences of progression", American Journal of Public Health, 74 : 668-672, 1984

Zuckerman, B., et. al., "Effects of maternal marijuana and cocaine use on fetal growth", The New England Journal of Medicine, March 23, 1989, pp. 762-768