It does not work against certain types of malaria (chloroquine-resistant). The United States Center for Disease Control provides updated guidelines and travel recommendations for the prevention and treatment of malaria in different parts of the world. Primaquine and chloroquine No need to check g6pd level for plaquenil Chloroquine resistant malaria countries Hydroxychloroquine is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Each tablet for oral administration contains 200 mg hydroxychloroquine sulfate equivalent to 155 mg hydroxychloroquine. Inactive ingredients Dibasic calcium phosphate, hydroxypropyl cellulose, hydroxypropyl methylcellulose, magnesium stearate, polyethylene glycol, povidone, sodium bicarbonate, and titanium dioxide. Hydroxychloroquine, like chloroquine, is a weak base and may exert its effect by concentrating in the acid vesicles of the parasite and by inhibiting polymerization of heme. It can also inhibit certain enzymes by its interaction with DNA. This medication is also used, usually with other medications, to treat certain auto-immune diseases (lupus, rheumatoid arthritis) when other medications have not worked or cannot be used. Discuss the most recent information with your doctor before traveling to areas where malaria occurs. What is hydroxychloroquine made of Hydroxychloroquine Side Effects, Dosage, Uses, and More, Hydroxychloroquine Tablets - FDA prescribing information. Chloroquine lysosomal membrane permeabilizationRheumatoid arthritis methotrexate vs hydroxychloroquinePlaquenil pronouncePlaquenil 200mg buy The molecular weight of hydroxychloroquine sulfate is 433.95, and molecular formula is C 18 H 26 ClN 3 O. H 2 SO 4. Each hydroxychloroquine sulfate tablet intended for oral administration contains 200 mg of hydroxychloroquine sulfate equivalent to 155 mg base. Hydroxychloroquine Tablets - FDA prescribing information, side effects.. Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects.. Plaquenil Hydroxychloroquine Side effects, Images, Uses.. Hydroxychloroquine is usually taken with food or milk to prevent stomach upset. The dosage and length of treatment are based on your medical condition and response to therapy. In children, dosage is also based on weight. Hydroxychloroquine is usually taken with food or milk to prevent stomach upset. The dosage and length of treatment are based on your medical condition and response to therapy. In children, dosage. Hydroxychloroquine is in a class of drugs called antimalarials. It is used to prevent and treat acute attacks of malaria. It is also used to treat discoid or systemic lupus erythematosus and rheumatoid arthritis in patients whose symptoms have not improved with other treatments.