Hi, Lariago contains chloroquine which belongs to the group of medications known as antimalarial drugs is used in the treatment and prevention of malaria. It works by killing the parasites which are responsible for developing malaria and prevent the infection from spreading. Side effects of Lariago are headache, dizziness, nausea, vomiting, rashes, hair loss, blurred vision, confusion, diarrhea, changes in personality, changes in liver function tests, abnormal blood cell counts, abdominal cramps, low blood pressure, nerve or muscle disorder, sensitivity to sunlight, reduced hearing, nerve deafness, ringing in the ears, corneal deposits, pigmentation of skin, mental disturbances, symptoms of allergic reactions like itching, rashes, swelling of lips, tongue, throat, face, eyes, hands or feet, wheezing, breathing difficulties etc. If these side effects persist for long then you should inform your doctor first. Before starting or stopping this medication, you should first consult your doctor. Take care. Hope I have answered your question. Let me know if I can assist you further further Regards, Dr. Zubayer Alam, General And Family Physician