Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Methotrexate and plaquenil for rheumatoid arthritis What are the side affects of hydroxychloroquine Hydroxychloroquine is taken in tablet form, with or after food. Your doctor will advise you about the correct dose. Usually you will start on a full dose of 200–400 mg daily, and later your doctor may reduce this. When your condition is very well controlled you may be advised to take hydroxychloroquine only 2–3 times per week. Hydroxychloroquine comes in an oral tablet. Adult dosing ranges from 200 mg or 400 mg per day 6.5mg/kg. In some cases, higher doses can be used. It is recommended one tablet twice daily if taking more than one tablet. It is recommended to be taken with food. This article is from June 2011 and may contain outdated material. Download PDF. Many systemic medications may cause retinal toxicity. One such commonly used medication for dermatologic and rheumatologic inflammatory conditions is hydroxychloroquine Plaquenil, a chloroquine derivative. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Hydroxychloroquine is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Plaquenil 200 mg wikipedia Plaquenil Uses, Dosage & Side Effects -, Hydroxychloroquine Plaquenil Chloroquine treatment of amoebic liver abscessChloroquine brazilChloroquine generic 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. Hydroxychloroquine MedlinePlus Drug Information. Hydroxychloroquine-Induced Retinal Toxicity - American.. PLAQUENIL HYDROXYCHLOROQUINE SULFATE TABLETS, USP DESCRIPTION. Tablets 200 mg 155 mg base; 200 mg hydroxychloroquine sulfate is equivalent to 155 mg of hydroxychloroquine base Indications and dosages Malaria prophylaxis dosages expressed as mg of base Find patient medical information for Plaquenil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Plaquenil 200 mg tablet. Plaquenil. Hydroxychloroquine generally is given to adults in doses of 200 mg or 400 mg per day. In some cases, higher doses can be used. Your doctor may gradually increase or decrease your dosage over time to find the right levels for your specific symptoms and needs while having the least amount of negative side effects.