Quinine is used to particularly treat nocturnal leg cramps and has been tried for PD. No reliable reference : Goodman & Gilman, the Johns-Hopkins Handbook of Drugs, etc cites positive evidence that quinine is of any use in these conditions. However, it is available as a prescription from some pharmacies (e.g. the Vanderbilt Medical Center Outpatient Pharmacy in Nashville),but there are more effective antimalarials. The belief that quinine relieves leg cramps is about as well-documented as the curative action of noodle soup in the flu --, and soup tastes much better. Quinine is one of the bitterest substances known. ` However, there is an agent that can provide dramatic relief against the superficial leg pain frequently observed in PD, namely,capsaicin, by prescription or otc (Dr.'s Cream; DABAT, P.O.B. 11783, Nashville, TN. Thoroughly wash or avoid contaminating any part of the body that has been exposed to capsaicin such as the external genitalia. It will give you no fun. Steven Mayer, Ph.D. Steven E. Mayer, Ph.D.