PT - JOURNAL ARTICLE AU - J. D. Grimes AU - M. N. Hassan AU - D. N. Preston TI - Adverse neurologic effects of metoclopramide DP - 1982 Jan 01 TA - Canadian Medical Association Journal PG - 23--25 VI - 126 IP - 1 4099 - http://www.cmaj.ca/content/126/1/23.short 4100 - http://www.cmaj.ca/content/126/1/23.full SO - CMAJ1982 Jan 01; 126 AB - Metoclopramide hydrochloride is now commonly prescribed for a variety of gastrointestinal disorders. Over a 2-year period 18 patients with neurologic disorders induced by metoclopramide were assessed at the Parkinson's disease clinic of the Ottawa Civic Hospital. During metoclopramide therapy acute transient dystonic reactions were seen in 4 patients, and parkinsonism, which was frequently misdiagnosed and treated as classic Parkinson's disease, was seen in 12 patients. After treatment with metoclopramide was stopped, tardive dyskinesia appeared in seven patients and has persisted for up to 15 months in three patients. Parkinsonism and tardive dyskinesia occurred in older patients undergoing long-term therapy with metoclopramide. This experience, therefore, suggests that such treatment, especially in older patients, should be avoided.