According to the Washington state law, the medical use of marijuana may benefit patients diagnosed with the following medical conditions: cancer, human immunodeficiency virus (HIV), multiple sclerosis, epilepsy or other seizure or spasticity disorders; some types of intractable pain; glaucoma, either acute or chronic; Crohn's disease; hepatitis C with debilitating nausea or intractable pain; or diseases, including anorexia, which result in nausea, vomiting, wasting, appetite loss, cramping, seizures, muscle spasms, or spasticity