Marijuana, or cannabis, is widely used in the Americas. Renowned for its pain-relieving qualities, marijuana has been used to treat many conditions over the decades. Doctors prescribe it to patients who have multiple sclerosis, cancer, and even more recently, attention deficit disorder and epilepsy. Patients who take marijuana to deal with their conditions can find it in a variety of forms. Depending on the effect they desire to achieve, patients have a choice from the following marijuana products.