ptoms of glaucoma and in treating the nausea induced by cancer
             chemotherapy and radiation treatments.
             The plant Cannabis sativa is the source of both marijuana and hashish.
             The leaves, flowers, and twigs of the plant are crushed to produce marijuana:
             its concentrated resin is hashish. Both drugs are usually smoked, sometimes
             in a pipe or water pipe, but most often in loosely rolled cigarettes known as
             "joints." Some users will slice open and hollow out cigars, replacing the
             tobacco with marijuana, to make what are called "blunts." Joints and blunts
             may be laced with other substances, including crack cocaine and the potent
             hallucinogen phencyclidine (PCP), substantially altering effects of the drug.
             Smoking, however, is not the sole route of administration. Marijuana can be
             ...