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: Incidence not known Some side effects of hydroxychloroquine may occur that usually do not need medical attention. Hydroxy chloroquine rheumatoid arthritis side effects Plaquenil side effects depression Feb 19, 2020 Hydroxychloroquine sulfate is a colorless crystalline solid, soluble in water to at least 20 percent; chemically the drug is 2-4-7-Chloro-4-quinolylaminopentylethylamino ethanol sulfate 11. PLAQUENIL hydroxychloroquine sulfate tablets contain 200 mg hydroxychloroquine sulfate, equivalent to 155 mg base, and are for oral administration. For Rheumatoid Arthritis hydroxychloroquine is a good drug for mild arthritis however length of time it takes for drug to leave body is worrying when you are faced with loosing your sight and possible progression after you stopped taking the drug. Also check the dose is correct for your ideal weight do you are not over medicated. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. These side effects may go away during treatment as your body adjusts to the medicine. Why is the drug hydroxychloroquine Hydroxychloroquine Side Effects, Dosage, Uses, and More, Chloroquine vs Hydroxychloroquine Comparison - Hydroxychloroquine sulfate tabs 200mg What is Hydroxychloroquine, and What Does It Do? According to the American College of Rheumatology, hydroxychloroquine Plaquenil, is a “disease-modifying anti-rheumatic drug DMARD,” meaning that it helps reduce the pain and swelling that come with arthritis. It can also reduce the incidence of joint damage, thus lessening the risk of. RA and Hydroxychloroquine How Effective is it for Rheumatoid.. Conditions that Hydroxychloroquine Oral Treats. Hydroxychloroquine Side Effects -. Hydroxychloroquine brand namePlaquenil is a disease-modifying anti-rheumatic drug DMARD approved for adults with RA. It is often given in combination with methotrexate and sulfasalazine a treatment known as triple therapy, to help slow RA disease progression for patients who do not get relief from methotrexate therapy alone. 1,2 I'm on Plaquenil for leukocytoclastic vasculitis among other autoimmune problems. Is this why Plaquenil is thought to be effective in treating this? I keep hearing about the vascular problems with the virus and autoimmune drug intervention, but I'm confused about the intent behind the medicine. 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.