Lariam is a prescription-only, antimalarial medication used in the treatment and prevention of malaria. It contains the active ingredient mefloquine, a suppressive antibiotic which cures malaria once the infection is in the bloodstream.
Malaria can be life-threatening and is prevalent in many tropical and subtropical countries. It is a parasitic infection passed on by the bite from a mosquito with the disease, though the mosquito itself can only be infected by biting a human who already has malaria. As such, using a prevention medication before you travel is not just beneficial for your health but a positive way to help stop the spread of malaria.