Mazindol in the treatment of narcolepsy.

Thirty-four subjects with the narcoleptic syndrome were treated with mazindol 3--8 mg daily for 1 year. Treatment cuased a sustained improvement in narcolepsy, but had no effect on cataplexy or sleep paralysis. The response to mazindol was excellent in six subjects, good in 14, moderate in 12 and poor in two. No cardiovascular effects, haematological toxicity, tolerance or dependence occurred. Mazindol 6 mg had the same effect on narcolepsy as d-amphetamine 50 mg, but caused less side effects.