SIDE EFFECTS INCLUDE POTENTIALLY LONG-TERM
MENTAL PROBLEMS:
Suicidal ideation, depression, hallucinations, anxiety
and neurological side effects such as, seizures,
ringing in ears, agitation, restlessness,
mood swings, panic attacks,
confusion, hallucinations, aggression
and psychosis. Other neurological symptoms,
such as dizziness and headache are relatively common.
Mefloquine may cause abnormalities with heart rhythms.
People who have, or have had, any mental
health condition or seizure disorder
should NOT take Mefloquine.

NOTICE ALL THE Fs (FLUORINE)
See also WIKIPEDIA