A study on the short-term effects of cannabinoids in patients with the HIV-1 infection showed that those patients that using smoked marijuana or marijuana pills had improved immune function compared with those receiving placebo. They also gained about 4 pounds more on average than those patients receiving placebo.
Marinol is an approved capsule available by prescripton which contains a synthetic form of THC, the substance in marijuana that causes the therapeutic effects and increase in appetite, why take a synthetic when a patient that is suffering can easily have the real thing?
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Medical cannabis refers to the use of the Cannabis plant as a physician-recommended herbal therapy as well as synthetic THC and cannabinoids. So far, the medical use of cannabis is legal only in a limited number of territories, including Canada, Belgium, Austria, the Netherlands, the United Kingdom, Spain, Israel, Finland, and some U.S. states. This usage generally requires a prescription, and distribution is usually done within a framework defined by local laws.
There are many studies regarding the use of cannabis in a medicinal context.