Can ganja make you mad?
Author:
BYRON BUCKLEY
Source:
Jamaica Observer
Data of Print:
Thursday, January 4, 2001
LOCAL belief has it that ganja can make you mad, but this is being disputed by Professor Frederick Hickling, head of the psychiatry section in the Department of Community Health and Psychiatry at the University of the West Indies (UWI), Mona. Pointing to studies undertaken by Professor Robin Murray and Doctor Ian McGuire of the Institute of Psychiatry at the Maudsley Hospital in London, England, Hickling says results from the testing of the urine of acute psychiatric patients showed "no correlation between marijuana use on the presence or absence of mental illness".
However, he notes, psychiatrists also agree that ganja aggravates or precipitates attacks of severe psychosis or mental illness in persons with the condition. "There are a number of people who have severe mental illness. When they feel like they are becoming mentally ill, they start self medicating with cannabis to help them to relieve the symptom of the illness they are having," he points out.
The UWI professor of psychiatry indicates that most psychiatrists agree that cannabis can cause an "acute toxic reaction" in persons who have had it for the first time.
"It is like somebody drinking alcohol for the first time and they become confused, do strange things, eventually lie down and sleep. And the next day the reaction is gone," Hickling explains.
He says due to legal/medical restrictions the local medical fraternity has been unable to test if ganja can be used as a medication for certain forms of mental illness, but adds that he has used Ganja as "replacement therapy" in treating people who have problems with alcohol.
In order to get these patients off alcohol they are given a substance, such as ganja, that is less damaging, but which helps them in the psychotherapy process to get better, Hickling says.
Dr Hickling and fellow UWI professor, Dr Manley West, challenged some widely held beliefs about the use and medicinal value of ganja.
Interest in cannabis sativa, the scientific name for ganja, has heightened globally with various countries contemplating decriminalising personal use of the substance and some taking steps to authorise its use for medicinal purposes.
The Government of Jamaica recently established a National Commission on Ganja, headed by Professor Barry Chevannes, dean of the Faculty of Social Sciences at the UWI. The commission is to examine the issue of the decriminalisation of ganja. "Cannabis sativa is not addictive, because when a person is addicted to a drug and stops taking it you must show clear-cut withdrawal symptoms," explains Dr West, professor emeritus in Pharmacology.
"If you stop taking cocaine and morphine there are clear-cut withdrawal symptoms. Alcoholics who stop taking alcohol have clear-cut withdrawal symptoms. Cannabis is habituating or habit-forming. If you stop a man from smoking cannabis he does not get sick, as far as I know."
Asked if ganja is a gateway drug, Dr West said: "There is no scientific evidence that if you smoke cannabis it induces you to take heroine, cocaine or morphine. You find, for example, that the ganja user rarely ever drinks alcohol because, I understand, that the alcohol causes unpleasant effects."
He points out that it is not safe to combine Ganja with alcohol. "Because alcohol modifies the rate at which a drug or medicine is absorbed into your system, causing unwanted effects, it would make the compounds of the cannabis more easily assimilated."
Hickling adds: "There is a conception by some people that cannabis use leads to other hard drug abuse. But for every one person that says so there are 20 who say the opposite.
There are lifelong ganja users who have never touched anything else. It really means that something else triggered their need for something more potent. It is related to the person, not to the cannabis."
Regarding the impact of ganja consumption on sexual performance, he points out that ganja makes a person feel as if his/her sexual prowess has increased. However, he says there is no objective evidence that indicates that this is so "one way or another".
"To be quite frank, anything that a human being uses to reduce anxiety will improve sexual performance. Any kind of substance that reduces anxiety, as cannabis definitely does, has a calming effect on people."
Dr West sheds more light on ganja folklore. He states emphatically that there is "no evidence that an overdose of ganja has resulted in the death of anybody".
Asked if the herb is safe for cooking, Dr West says he has not "come across any illness or any significant side effects" arising from cooking ganja along with food.
However, he discourages smoking the plant because it contains more than 400 different compounds and, therefore, should be prescribed by a medical doctor. "If you give psychoactive compounds to patients that are unstable, it could affect their condition, but a medical doctor would know this," he suggests.
West also discourages the smoking of ganja on the grounds that the inhalation of particles will negatively affect lung tissue, because smoking results in the inhalation of tar and other compounds harmful to the lungs.
Professor Hickling, on the other hand, claims that post-mortem history in Jamaica has shown that the lungs of long-term ganja users are free of ill effects.
Professor West, along with ophthalmologist Albert B Lockhart successfully pioneered the use of ganja for the treatment of glaucoma, a disease of the eye.
In addition to treating glaucoma, Dr West says the medication from cannabis is used to treat asthma and migraine.
He notes that in some states in the United States of America, the smoking of cannabis is allowed for HIV/AIDS patients because it increases their appetite and controls nausea and vomiting resulting from chemotherapy.
He discloses that the University of Plymouth in the United Kingdom is reproducing cannabis genetically to produce a certain percentage of tetrahydrocannabinols (THC) to be used as treatment for pain resulting from multiple sclerosis.
Professor Hickling adds that dysmenorrhoea (period pains) and the "intractable pain" felt by cancer patients are relieved by ganja. But he disagrees with the notion that ganja destroys the brain, stating that there is "absolutely no medical evidence" to support this conclusion, despite extensive studies and commissions of inquiry in major countries during the last century.
"The overwhelming evidence is that for most people who use marijuana in moderation it has little or no long-term deleterious effects. I have known people to use over two ounces of marijuana per day without any visible clinical and mental effects; while it can have therapeutic and beneficial effects in some people," the psychiatrist notes
Author:
BYRON BUCKLEY
Source:
Jamaica Observer
Data of Print:
Thursday, January 4, 2001
LOCAL belief has it that ganja can make you mad, but this is being disputed by Professor Frederick Hickling, head of the psychiatry section in the Department of Community Health and Psychiatry at the University of the West Indies (UWI), Mona. Pointing to studies undertaken by Professor Robin Murray and Doctor Ian McGuire of the Institute of Psychiatry at the Maudsley Hospital in London, England, Hickling says results from the testing of the urine of acute psychiatric patients showed "no correlation between marijuana use on the presence or absence of mental illness".
However, he notes, psychiatrists also agree that ganja aggravates or precipitates attacks of severe psychosis or mental illness in persons with the condition. "There are a number of people who have severe mental illness. When they feel like they are becoming mentally ill, they start self medicating with cannabis to help them to relieve the symptom of the illness they are having," he points out.
The UWI professor of psychiatry indicates that most psychiatrists agree that cannabis can cause an "acute toxic reaction" in persons who have had it for the first time.
"It is like somebody drinking alcohol for the first time and they become confused, do strange things, eventually lie down and sleep. And the next day the reaction is gone," Hickling explains.
He says due to legal/medical restrictions the local medical fraternity has been unable to test if ganja can be used as a medication for certain forms of mental illness, but adds that he has used Ganja as "replacement therapy" in treating people who have problems with alcohol.
In order to get these patients off alcohol they are given a substance, such as ganja, that is less damaging, but which helps them in the psychotherapy process to get better, Hickling says.
Dr Hickling and fellow UWI professor, Dr Manley West, challenged some widely held beliefs about the use and medicinal value of ganja.
Interest in cannabis sativa, the scientific name for ganja, has heightened globally with various countries contemplating decriminalising personal use of the substance and some taking steps to authorise its use for medicinal purposes.
The Government of Jamaica recently established a National Commission on Ganja, headed by Professor Barry Chevannes, dean of the Faculty of Social Sciences at the UWI. The commission is to examine the issue of the decriminalisation of ganja. "Cannabis sativa is not addictive, because when a person is addicted to a drug and stops taking it you must show clear-cut withdrawal symptoms," explains Dr West, professor emeritus in Pharmacology.
"If you stop taking cocaine and morphine there are clear-cut withdrawal symptoms. Alcoholics who stop taking alcohol have clear-cut withdrawal symptoms. Cannabis is habituating or habit-forming. If you stop a man from smoking cannabis he does not get sick, as far as I know."
Asked if ganja is a gateway drug, Dr West said: "There is no scientific evidence that if you smoke cannabis it induces you to take heroine, cocaine or morphine. You find, for example, that the ganja user rarely ever drinks alcohol because, I understand, that the alcohol causes unpleasant effects."
He points out that it is not safe to combine Ganja with alcohol. "Because alcohol modifies the rate at which a drug or medicine is absorbed into your system, causing unwanted effects, it would make the compounds of the cannabis more easily assimilated."
Hickling adds: "There is a conception by some people that cannabis use leads to other hard drug abuse. But for every one person that says so there are 20 who say the opposite.
There are lifelong ganja users who have never touched anything else. It really means that something else triggered their need for something more potent. It is related to the person, not to the cannabis."
Regarding the impact of ganja consumption on sexual performance, he points out that ganja makes a person feel as if his/her sexual prowess has increased. However, he says there is no objective evidence that indicates that this is so "one way or another".
"To be quite frank, anything that a human being uses to reduce anxiety will improve sexual performance. Any kind of substance that reduces anxiety, as cannabis definitely does, has a calming effect on people."
Dr West sheds more light on ganja folklore. He states emphatically that there is "no evidence that an overdose of ganja has resulted in the death of anybody".
Asked if the herb is safe for cooking, Dr West says he has not "come across any illness or any significant side effects" arising from cooking ganja along with food.
However, he discourages smoking the plant because it contains more than 400 different compounds and, therefore, should be prescribed by a medical doctor. "If you give psychoactive compounds to patients that are unstable, it could affect their condition, but a medical doctor would know this," he suggests.
West also discourages the smoking of ganja on the grounds that the inhalation of particles will negatively affect lung tissue, because smoking results in the inhalation of tar and other compounds harmful to the lungs.
Professor Hickling, on the other hand, claims that post-mortem history in Jamaica has shown that the lungs of long-term ganja users are free of ill effects.
Professor West, along with ophthalmologist Albert B Lockhart successfully pioneered the use of ganja for the treatment of glaucoma, a disease of the eye.
In addition to treating glaucoma, Dr West says the medication from cannabis is used to treat asthma and migraine.
He notes that in some states in the United States of America, the smoking of cannabis is allowed for HIV/AIDS patients because it increases their appetite and controls nausea and vomiting resulting from chemotherapy.
He discloses that the University of Plymouth in the United Kingdom is reproducing cannabis genetically to produce a certain percentage of tetrahydrocannabinols (THC) to be used as treatment for pain resulting from multiple sclerosis.
Professor Hickling adds that dysmenorrhoea (period pains) and the "intractable pain" felt by cancer patients are relieved by ganja. But he disagrees with the notion that ganja destroys the brain, stating that there is "absolutely no medical evidence" to support this conclusion, despite extensive studies and commissions of inquiry in major countries during the last century.
"The overwhelming evidence is that for most people who use marijuana in moderation it has little or no long-term deleterious effects. I have known people to use over two ounces of marijuana per day without any visible clinical and mental effects; while it can have therapeutic and beneficial effects in some people," the psychiatrist notes
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