Cannabinoids constitute the active compounds found in marijuana and are chemicals that are similar to chemicals produced by the body involving appetite, memory, movement, and pain. Marijuana has shown to be useful in treating nausea and vomiting caused by cancer chemotherapy to epilepsy and...

Antidepressants are a broad range of drugs that treat depression by altering brain chemicals to reduce restlessness, anxiety, and sleep disorders. These drugs work by altering the functioning of brain regions that are controlled by neurotransmitters, which transfer messages between brain cells...

Steroids are chemical hormones produced naturally by the body, and can be lab-made to reduce inflammation. Corticosteroids help prevent the immune system from producing substances that cause inflammation, and anabolic steroids build muscle mass depleted by conditions like cancer.

NSAIDs are effective pain killers by negating the production of prostaglandins, which are chemicals in the body that cause pain and inflammation. NSAIDs are used to treat a great variety of conditions ranging from Rheumatoid arthritis and tendonitis to tooth pain and menstrual cramps. There are...