Plaquenil 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. Plaquenil and plaque in arteries How long to try plaquenil Hydroxychloroquine is used to treat discoid lupus erythematosus DLE or systemic lupus erythematosus SLE or lupus. It is also used to treat acute and chronic rheumatoid arthritis. This medicine is available only with your doctor's prescription. Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. Hydroxychloroquine Plaquenil® is a 4-amino-quinoline antimalarial medication that is widely used to treat systemic lupus erythematosus SLE, rheumatoid arthritis, and related inflammatory and dermatological conditions. It is a hydroxylated version of chloroquine, with a similar mechanism of action. Plaquenil is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. This medicine is not effective against all strains of malaria. Hydroxychloroquine uses Hydroxychloroquine - LiverTox - NCBI Bookshelf, Hydroxychloroquine Side Effects, Dosage, Uses, and More Getting a cold while on plaquenil Corticosteroids and salicylates may be used in conjunction with PLAQUENIL, and they can generally be decreased gradually in dosage or eliminated after a maintenance dose of PLAQUENIL has been achieved. HOW SUPPLIED. PLAQUENIL tablets are white, to off-white, film coated tablets imprinted “PLAQUENIL” on one face in black ink. Each tablet contains 200 mg hydroxychloroquine sulfate equivalent to 155 mg base. Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects.. Hydroxychloroquine DermNet NZ. Plaquenil Uses, Dosage & Side Effects -. Hydroxychloroquine or Plaquenil It is part of a series of medications that were originally used to prevent and treat malaria, but, at present, it is used for discomforts such as rheumatoid arthritis, some symptoms of lupus and other autoimmune diseases. It has also been used to prevent and treat malaria. For patients taking hydroxychloroquine to prevent malaria Your doctor may want you to start taking this medicine 1 to 2 weeks before you travel to an area where there is a chance of getting malaria. This will help you to see how you react to the medicine. Hydroxychloroquine is also used to treat and prevent certain types of malaria. It may also be used for the treatment of lupus. This medication may be available under multiple brand names and/or in several different forms.