n 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
The antimalarial drug chloroquine is no longer broadly effective, and even the newest substitute, mefloquine, is encountering resistance from some strains of the malarial parasite.
Elite Army units to stop taking anti-malarial drug The top doctor for Green Berets and other elite Army commandos has told troops to immediately stop taking mefloquine, an anti-malaria drug found to cause permanent brain damage in rare cases.
Sept. 22, 2013 - Laramie Boomerang
Peter Schoomaker in ArmyTimes.com In areas where doxycycline and mefloquine are equally efficacious in preventing malaria, doxycycline is the drug of choice,Army Surgeon General Lt. Gen. Eric Schoomaker said in a memo dated Feb. 2.