It can decrease the pain and swelling of arthritis. It may prevent joint damage and reduce the risk of long-term disability. Free plaquenil How long before plaquenil works Fever with or without chills general feeling of tiredness or weakness headache inability to move the eyes increased blinking or spasms of the eyelid joint or muscle pain large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, and sex organs loss of hearing lower back or side pain noisy breathing Hydroxychloroquine oral tablet is available as a brand-name drug and a generic drug. Brand name Plaquenil. Hydroxychloroquine comes only as a tablet you take by mouth. Hydroxychloroquine is used to treat malaria, lupus erythematosus, and rheumatoid arthritis. Hydroxychloroquine Plaquenil is a drug that is classified as an anti-malarial drug. Plaquenil is prescribed for the treatment or prevention of malaria. It is also prescribed for the treatment of rheumatoid arthritis, lupus, and the side effects of lupus such as hair loss, joint pain, and more. Today, it is used to treat rheumatoid arthritis, some symptoms of lupus, childhood arthritis (or juvenile idiopathic arthritis) and other autoimmune diseases. Hydroxychloroquine is in a class of medications that was first used to prevent and treat malaria. Fever with hydroxychloroquine What Is the Difference between Hydroxychloroquine and., Hydroxychloroquine Side Effects, Dosage, Uses, and More Are you more likely to get sick while take hydroxychloroquine Plaquenil is the brand name for the prescription drug hydroxychloroquine. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus, rheumatoid arthritis, and others. Plaquenil Hydroxychloroquine - Side Effects, Dosage.. Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria. Hydroxychloroquine Plaquenil Side Effects & Dosage for.. Mar 01, 2015 Hydroxychloroquine HCQ is an antimalarial drug also used in treating autoimmune diseases. Its antiviral activity was demonstrated in restricting HIV infection in vitro; however, the clinical implications remain controversial. Infection with dengue virus DENV is a global public health problem, and we lack an antiviral drug for DENV. Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking hydroxychloroquine An exception to this is the use of hydroxychloroquine in patients with porphyria cutanea tarda. When used in relatively high doses, hydroxychloroquine can trigger an acute hepatic injury with sudden onset of fever and marked serum enzyme elevations with increased excretion of porphyrins.