Is there a risk in taking lariam (malaria prevention)?

Probably: Mefloquine( Lariam ) may cause psychiatry disturbances( depression/anxiety) cardiac rythm abnormality etc...; however, the benefit of preventing malaria outweighs the risk of these possible side effects.

All medications have: potential for side effects. Lariam side effects may include: confusion, hallucinations, anxiety, depressed mood, fever, nausea, vomiting, diarrhea, abdominal pain, clay-colored stools, jaundice, weight loss, skin rash, itching, bruising, bleeding, headaches, shortness of breath, coughing, weakness & oral lesions,