More states are passing laws that allow people to use medical marijuana. So what does it treat, and who can and should use it?
Pain
is the main reason people ask for a prescription, says Barth Wilsey,
MD, a pain medicine specialist at the University of California Davis
Medical Center. It could be from headaches, a disease like cancer, or a long-term condition, like glaucoma or nerve pain.
is the main reason people ask for a prescription, says Barth Wilsey,
MD, a pain medicine specialist at the University of California Davis
Medical Center. It could be from headaches, a disease like cancer, or a long-term condition, like glaucoma or nerve pain.
If you live
in a state where medical marijuana is legal and your doctor thinks it
would help, you’ll get a “marijuana card.” You will be put on a list
that allows you to buy marijuana from an authorized seller, called a
dispensary.
in a state where medical marijuana is legal and your doctor thinks it
would help, you’ll get a “marijuana card.” You will be put on a list
that allows you to buy marijuana from an authorized seller, called a
dispensary.
Doctors also may prescribe medical marijuana to treat:
- Muscle spasms caused by multiple sclerosis
- Nausea from cancer chemotherapy
- Poor appetite and weight loss caused by chronic illness, such as HIV, or nerve pain
- Seizure disorders
- Crohn’s disease
The FDA has
also approved THC, a key ingredient in marijuana, to treat nausea and
improve appetite. It’s available by prescription Marinol (dronabinol) and Cesamet (nabilone).
also approved THC, a key ingredient in marijuana, to treat nausea and
improve appetite. It’s available by prescription Marinol (dronabinol) and Cesamet (nabilone).
How Does It Work?
Your body
already makes marijuana-like chemicals that affect pain, inflammation,
and many other processes. Marijuana can sometimes help those natural
chemicals work better, says Laura Borgelt, PharmD, of the University of
Colorado.
already makes marijuana-like chemicals that affect pain, inflammation,
and many other processes. Marijuana can sometimes help those natural
chemicals work better, says Laura Borgelt, PharmD, of the University of
Colorado.
How Is It Used?
Medical marijuana may be:
- Smoked
- Vaporized (heated until active ingredients are released, but no smoke is formed)
- Eaten (usually in the form of cookies or candy)
- Taken as a liquid extract
Side Effects
Side effects of marijuana that usually don’t last long can include:
- Dizziness
- Drowsiness
- Short-term memory loss
- Euphoria
More serious side effects include severe anxiety and psychosis.
Risks and Limits
Medical
marijuana is not monitored like FDA-approved medicines. When using it,
you don’t know its potential to cause cancer, its purity, potency, or
side effects.
marijuana is not monitored like FDA-approved medicines. When using it,
you don’t know its potential to cause cancer, its purity, potency, or
side effects.
Only people
who have a card from a doctor should use medical marijuana. Doctors
will not prescribe medical marijuana to anyone under 18. Others who
should not use it:
who have a card from a doctor should use medical marijuana. Doctors
will not prescribe medical marijuana to anyone under 18. Others who
should not use it:
- People with heart disease
- Pregnant women
- People with a history of psychosis
By Anne Harding
© 2013 WebMD, LLC. All rights reserved.
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