It may have both an anti-spirochaete activity and an anti-inflammatory activity, similar to the treatment of rheumatoid arthritis. And caution is required if patients have certain heart conditions, diabetes, psoriasis etc. Plaquenil and juvenile arthritis Plaquenil tremors Chloroquine primaquine HYDROXYCHLOROQUINE hye drox ee KLOR oh kwin is used to treat rheumatoid arthritis and systemic lupus erythematosus. It is also used to treat malaria. This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions. Plaquenil hydroxychloroquine belongs to a group of medicines called quinolines. Plaquenil is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Hydroxychloroquine comes as a tablet to take by mouth. For prevention of malaria in adults, two tablets are usually taken once a week on exactly the same day of each week. The first dose is taken 1 to 2 weeks before traveling to an area where malaria is common, and then doses are continued for 8 weeks after exposure. The most serious adverse effects affect the eye, with dose-related retinopathy as a concern even after hydroxychloroquine use is discontinued. The most common adverse effects are a mild nausea and occasional stomach cramps with mild diarrhea. Hydroxychloroquine liver talks Hydroxychloroquine - Side Effects, Dosage, Interactions., Plaquenil Uses, Dosage & Side Effects - Chloroquine resistant malaria countries 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. Hydroxychloroquine Plaquenil Side Effects & Dosage for.. Hydroxychloroquine MedlinePlus Drug Information. Hydroxychloroquine Uses, Dosage & Side Effects -. Hydroxychloroquine sulfate contains lactoseSigns of allergic reaction include a rash, swallowing or breathing problems, swelling of your lips, face, throat or tongue. If you have an allergy to hydroxychloroquine or any other part of this drug. If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; Hydroxychloroquine HCQ, sold under the brand name Plaquenil among others, is a medication used for the prevention and treatment of certain types of malaria. Specifically it is used for chloroquine-sensitive malaria. Other uses include treatment of rheumatoid arthritis, lupus, and porphyria cutanea tarda. It is taken by mouth.