It can decrease the pain and swelling of arthritis. It may prevent joint damage and reduce the risk of long-term disability. Plaquenil hyperpigmentation Abatacept sulfasalazine hydroxychloroquine triple therapy Chloroquine pancreatic cancer Chloroquine phosphate reef safe Plaquenil Hydroxychloroquine belongs to a group of medications known as anti-inflammatories and antimalarials. It is used alone or in combination with other anti-arthritic medications to treat rheumatoid arthritis. It helps to reduce pain, stiffness, and swelling in joints. A dosage reduction for metoprolol may be needed based on response. Concurrent use may increase metoprolol exposure. Metoprolol is a CYP2D6 substrate; hydroxychloroquine is a moderate CYP2D6 inhibitor. Plaquenil Hydroxychloroquine is used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as lupus & others. 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. Plaquenil tablet uses Taking Plaquenil for Various Conditions and Treatment Tips, Plaquenil hydroxychloroquine sulfate dose, indications. Are hydroxychloroquine and meloxicam the same thingIs plaquenil a maoiHydroxychloroquin cardiac protectiveOphthalmology guidelines for plaquenil Plaquenil Risk Calculators. Please note This calculator was modified in 9/2015. It now solely uses real body weight rather than ideal body weight based on new recommendations from a 2014 study 1. I wrote a blog post explaining these changes here. Plaquenil Risk Calculators. Plaquenil Hydroxychloroquine - Side Effects, Dosage.. Plaquenil Uses, Dosage & Side Effects -. Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. Damage to the retina, the light sensitive portion of the inner eye, can occur with long-term use of Plaquenil or chloroquine Aralen. With Plaquenil, however, the most commonly prescribed anti-malarial, this sort of damage occurs only in 1 out of 5,000 people who take the drug for five years or more. For lupus erythematosus, one or two tablets are usually taken once or twice daily. For rheumatoid arthritis, one to three tablets are usually taken once a day. Hydroxychloroquine can be taken with a glass of milk or a meal to decrease nausea. Follow the directions on your prescription label carefully.