Exposing the Myth of Smoked Medical Marijuana

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DEA BannerMARIJUANA: THE FACTS


Q: Does marijuana pose health risks to users?

  • Marijuana is an addictive drug1with significant health consequences to its users and others. Many harmful short-term and long-term problems have been documented with its use:
  • The short term effects of marijuana use includes: memory loss, distorted perception, trouble with thinking and problem solving, loss of motor skills, decrease in muscle strength, increased heart rate, and anxiety2.
  • In recent years there has been a dramatic increase in the number of emergency room mentions of marijuana use. From 1993-2000, the number of emergency room marijuana mentions more than tripled.
  • There are also many long-term health consequences of marijuana use. According to the National Institutes of Health, studies show that someone who smokes five joints per week may be taking in as many cancer-causing chemicals as someone who smokes a full pack of cigarettes every day.
  • Marijuana contains more than 400 chemicals, including most of the harmful substances found in tobacco smoke. Smoking one marijuana cigarette deposits about four times more tar into the lungs than a filtered tobacco cigarette.
  • Harvard University researchers report that the risk of a heart attack is five times higher than usual in the hour after smoking marijuana.3
  • Smoking marijuana also weakens the immune system4 and raises the risk of lung infections.5 A Columbia University study found that a control group smoking a single marijuana cigarette every other day for a year had a white-blood-cell count that was 39 percent lower than normal, thus damaging the immune system and making the user far more susceptible to infection and sickness.6
  • Users can become dependent on marijuana to the point they must seek treatment to stop abusing it. In 1999, more than 200,000 Americans entered substance abuse treatment primarily for marijuana abuse and dependence.
  • More teens are in treatment for marijuana use than for any other drug or for alcohol. Adolescent admissions to substance abuse facilities for marijuana grew from 43 percent of all adolescent admissions in 1994 to 60 percent in 1999.
  • Marijuana is much stronger now than it was decades ago. According to data from the Potency Monitoring Project at the University of Mississippi, the tetrahydrocannabinol (THC) content of commercial-grade marijuana rose from an average of 3.71 percent in 1985 to an average of 5.57 percent in 1998. The average THC content of U.S. produced sinsemilla increased from 3.2 percent in 1977 to 12.8 percent in 1997.7

Q. Does marijuana have any medical value?

  • Any determination of a drug’s valid medical use must be based on the best available science undertaken by medical professionals. The Institute of Medicine conducted a comprehensive study in 1999 to assess the potential health benefits of marijuana and its constituent cannabinoids. The study concluded that smoking marijuana is not recommended for the treatment of any disease condition. In addition, there are more effective medications currently available. For those reasons, the Institute of Medicine concluded that there is little future in smoked marijuana as a medically approved medication.8
  • Advocates have promoted the use of marijuana to treat medical conditions such as glaucoma. However, this is a good example of more effective medicines already available. According to the Institute of Medicine, there are six classes of drugs and multiple surgical techniques that are available to treat glaucoma that effectively slow the progression of this disease by reducing high intraocular pressure.
  • In other studies, smoked marijuana has been shown to cause a variety of health problems, including cancer, respiratory problems, increased heart rate, loss of motor skills, and increased heart rate. Furthermore, marijuana can affect the immune system by impairing the ability of T-cells to fight off infections, demonstrating that marijuana can do more harm than good in people with already compromised immune systems.9
  • In addition, in a recent study by the Mayo Clinic, THC was shown to be less effective than standard treatments in helping cancer patients regain lost appetites.10

  • The DEA supports research into the safety and efficacy of THC (the major psychoactive component of marijuana), and such studies are ongoing, supported by grants from the National Institute on Drug Abuse.
  • As a result of such research, a synthetic THC drug, Marinol, has been available to the public since 1985. The Food and Drug Administration has determined that Marinol is safe, effective, and has therapeutic benefits for use as a treatment for nausea and vomiting associated with cancer chemotherapy, and as a treatment of weight loss in patients with AIDS. However, it does not produce the harmful health effects associated with smoking marijuana.
  • Furthermore, the DEA recently approved the University of California San Diego to undertake rigorous scientific studies to assess the safety and efficacy of cannabis compounds for treating certain debilitating medical conditions.
  • It’s also important to realize that the campaign to allow marijuana to be used as medicine is a tactical maneuver in an overall strategy to completely legalize all drugs. Pro-legalization groups have transformed the debate from decriminalizing drug use to one of compassion and care for people with serious diseases. The New York Times interviewed Ethan Nadelman, Director of the Lindesmith Center, in January 2000. Responding to criticism from former Drug Czar Barry McCaffrey that the medical marijuana issue is a stalking-horse for drug legalization, Mr. Nadelman did not contradict General McCaffrey. “Will it help lead toward marijuana legaization?” Mr. Nadelman said: “I hope so.”

Q. Does marijuana harm anyone besides the individual who smokes it?

  • Consider the public safety of others when confronted with intoxicated drug users:
  • Marijuana affects many skills required for safe driving: alertness, the ability to concentrate, coordination, and reaction time. These effects can last up to 24 hours after smoking marijuana. Marijuana use can make it difficult to judge distances and react to signals and signs on the road.11
  • In a 1990 report, the National Transportation Safety Board studied 182 fatal truck accidents. It found that just as many of the accidents were caused by drivers using marijuana as were caused by alcohol — 12.5 percent in each case.
  • Consider also that drug use, including marijuana, contributes to crime. A large percentage of those arrested for crimes test positive for marijuana. Nationwide, 40 percent of adult males tested positive for marijuana at the time of their arrest.

Q. Is marijuana a gateway drug?

  • Yes. Among marijuana’s most harmful consequences is its role in leading to the use of other illegal drugs like heroin and cocaine. Long-term studies of students who use drugs show that very few young people use other illegal drugs without first trying marijuana. While not all people who use marijuana go on to use other drugs, using marijuana sometimes lowers inhibitions about drug use and exposes users to a culture that encourages use of other drugs.
  • The risk of using cocaine has been estimated to be more than 104 times greater for those who have tried marijuana than for those who have never tried it.12

In Summary:

  • Marijuana is a dangerous, addictive drug that poses significant health threats to users.
  • Marijuana has no medical value that can’t be met more effectively by legal drugs.
  • Marijuana users are far more likely to use other drugs like cocaine and heroin than non-marijuana users.
  • Drug legalizers use “medical marijuana” as red herring in effort to advocate broader legalization of drug use.1Herbert Kleber, Mitchell Rosenthal, “Drug Myths from Abroad: Leniency is Dangerous, not Compassionate” Foreign Affairs Magazine, September/October 1998. Drug Watch International “NIDA Director cites Studies that Marijuana is Addictive.” “Research Finds Marijuana is Addictive,” Washington Times, July 24, 1995.
    2National Institue of Drug Abuse, Journal of the American Medical Association, Journal of Clinical Phamacology, International Journal of Clinical Pharmacology and Therapeutics, Pharmacology Review.
    3“Marijuana and Heart Attacks” Washington Post, March 3, 2000
    4I. B. Adams and BR Martin, “Cannabis: Pharmacology and Toxicology in Animals and Humans” Addiction 91: 1585-1614. 1996.
    5National Institute of Drug Abuse, “Smoking Any Substance Raises Risk of Lung Infections” NIDA Notes, Volume 12, Number 1, January/February 1997.
    6Dr. James Dobson, “Marijuana Can Cause Great Harm” Washington Times, February 23, 1999.
    72000 National Drug Control Strategy Annual Report, page 13.
    8“Marijuana and Medicine: Assessing the Science Base,” Institute of Medicine, 1999.
    9See footnotes in response to question 4 regarding marijuana’s short and long term health effects.
    10“Marijuana Appetite Boost Lacking in Cancer Study” The New York Times, May 13, 2001.
    11Marijuana: Facts Parents Need to Know, National Institute on Drug Abuse, National Institutes of Health.
    12Marijuana: Facts Parents Need to Know, National Institute on Drug Abuse, National Institutes of Health.

Reprinted from http://www.justice.gov

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6 thoughts on “Exposing the Myth of Smoked Medical Marijuana

  1. Shauntel

    Thank you for providing this information! It is go great to know there is another place for family members to go and learn about addiction. As a family member, I cannot get enough information about addiction.

  2. Cathy | Treatment Talk

    Great article with many important facts. There can never be enough information. Thanks. Another post on marijuana @ treatmenttalk.org. Is really “Just Marijuana”?

  3. youalreadyknow

    Just a reminder to all that fully read this article. DEA employess rely on tomorrow’s majiuana users. if it wasn’t illegal the United States wouldnt know how to spend that extra $2,500,000,000. Thats right according to PBS Frontline investigations our country spends that much alone to prosecute marijuana users. Plus if it want for those people getting stoned there would be no need for pyshcologists and councilers. If you take into the account this article said more than 200,000 americans checked in for marijuana use, and then use the $7,000/month average (todays cost) thats 1.4 milllion per month. That 200,000 statistic is out dated, but still my point holds signifigance in my proval of america needing “these stoners”. Its cool the DEA is still sticking to their original story of marijuana being bad, but they need some more convicing evidence. I suggest they show both sides of the story and update their evidence

  4. Joe

    I have received a few comments from people that disagree with the posted article on Medical Marijuana. Let me start by saying I am not the one who wrote the article. It is a post from the US Dept. of Drug Enforcement Agency. I do agree with what the report has concluded. Lots of adolescents and adults getting stoned on a hallucinogenic drug is not a good thing AND it never will be!
    The few (about 3 people) who disagree with the report probably did not read the entire article. It would be a nice idea to read it all the way through before commenting. As an aside, I will say that I’m sure there might be a handful of people in the country (by that I mean literally 4 or 5 out of 300 million) who have genuinely found it to work well for their real and legitimate pain problem (maybe). But for the other 10’s of millions who smoke it to get stoned it’s just dope to get high on.

  5. Amom

    THANK YOU! AS a mom of a 14 yr marijuana addict who kept reading all the lies on the internet THANK YOU THANK YOU

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