WordNet (r) 3.0 (2006):

Larium
    n 1: an antimalarial drug (trade name Larium and Mephaquine)
         that is effective in cases that do not respond to
         chloroquine; said to produce harmful neuropsychiatric
         effects on some people [syn: mefloquine, mefloquine
         hydrochloride, Larium, Mephaquine]