According to the National Academies of Science, Technology, and Medicine, there is strong evidence that marijuana or cannabinoids can aid treatment: If someone is looking for marijuana then they may search the browser or visit some sites like

Medical Treatment With Marijuana

  • Chronic pain in grown-ups or adults

  • some of the symptoms of multiple sclerosis (MS)

  • Nausea and vomiting due to chemotherapy

There is reasonable evidence that it can assist with sleep problems associated with sleep apnea, fibromyalgia, chronic pain, and MS.

Other conditions that can be useful include:

  • Poor appetite

  • Tourette's Syndrome

  • Fear of some people

In 2018, the Food and Drug Administration (FDA) approved Epidiolex, a cannabis-derived drug, which is used to treat two types of rare and severe epilepsy that don't respond well to other treatments. Epidiolex is a pure CBD form that does not contain THC.

Three drugs containing a synthetic substance with a THC-like structure have received FDA approval. Marinol, Syndros, and Cesamet are options for treating some types of anorexia.


There are several ways you can use marijuana, and the method used can determine how the drug works.

Smoking or inhaling: Feelings of excitement can start after a few minutes and reach a peak in 10 to 30 minutes. The feeling usually goes away after about 2 hours.

Ingestion: When a person takes a product containing marijuana orally, they will usually experience the effects within 1 hour and the peak of the sensation after 2.5 to 3.5 hours. One study showed that the edible type affected the time it took to feel the effects, with candy kicking in faster.

Topical: Transdermal patches allow ingredients to enter the body over a long period of time. This constant infusion may benefit people who use marijuana to treat pain and inflammation.