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. Plaquenil and uri Benefits of plaquenil and rheumatoid arthritis Hydroxychloroquine typically is very well tolerated. Serious side effects are rare. The most common side effects are nausea and diarrhea, which often improve with time. Less common side effects include rash, changes in skin pigment such as darkening or dark spots, hair changes, and muscle weakness. Plaquenil is cumulative in action and will require several weeks to exert its beneficial therapeutic effects, whereas minor side effects may occur relatively early. Several months of therapy may be required before maximum effects can be obtained. Initial dosage In adults, a suitable initial dosage is from 400 to 600 mg daily, preferably taken at Use WebMD’s Drug Interaction Checker tool to find and identify potentially harmful and unsafe combinations of prescription medications by entering two or more drugs in question. 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. Carbamazepine interaction hydroxychloroquine Tegretol Oral Uses, Side Effects, Interactions, Pictures., DATA SHEET 1 PRODUCT NAME 2 QUALITATIVE AND QUANTITATIVE COMPOSITION 3. Plaquenil and itchingPlaquenil for amyopathic dermatomyositisAccidently took next days dose of hydroxychloroquinePlaquenil classHerpes and plaquenil 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. Plaquenil Hydroxychloroquine - Side Effects, Dosage.. Drug Interaction Checker - Find Interactions Between Medications. Hydroxychloroquine Indications, Side Effects, Warnings -. A list of drugs that interact with Cimetidine. Cimetidine slightly increases the exposure to mirtazapine. Manufacturer advises use with caution and adjust dose. Carbamazepine Moderate Caution is warranted with the coadministration of hydroxychloroquine and antiepileptic drugs, such as carbamazepine. Hydroxychloroquine can lower the seizure threshold; therefore, the activity of antiepileptic drugs may be impaired with concomitant use. Although additional mechanistic studies are necessary to confirm the beneficial effects of hydroxychloroquine on endothelial function in the context of CAD, the anti-inflammatory properties of.