The review is based on 57,733 people who have side effects while taking the drug from Food and Drug Administration (FDA). The information that e Health Me analyzes includes: On e Health Me, you can evaluate side effects and drug interactions from 16 million FDA reports. Long term effects of plaquenil Taking plaquenil 4 mg Common side effects include headaches, dizziness, gastrointestinal upset and rash. Retinopathy is a serious side effect of hydroxychloroquine and regular ophthalmologic monitoring is recommended for patients on long term therapy. Most patients do very well on hydroxychloroquine. Common side effects include allergy to the medication, GI disturbances such as nausea or diarrhea, and changes of pigmentation in the skin or hair this is not a complete list. Hydroxychloroquine is widely used in the treatment of post-Lyme arthritis. It may have both an anti-spirochaete activity and an anti-inflammatory activity, similar to the treatment of rheumatoid arthritis. Adverse effects. The most common adverse effects are a mild nausea and occasional stomach cramps with mild diarrhea. The most serious adverse effects affect the eye. You can also discuss your drugs with qualified professionals to ensure drugs are working to improve your health. The study is based on hydroxychloroquine sulfate (the active ingredients of Plaquenil) and Plaquenil (the brand name). The results are personalized to your gender and age (0-99 ). Most common side effects of hydroxychloroquine PATIENT FACT SHEET Hydroxychloroquine Plaquenil, What are the common side effects of plaquenil. Chloroquin phosphate site drugs.comPlaquenil help payingPlaquenil cause muscle painPlaquenil lymph nodes Side Effects Nausea, stomach cramps, loss of appetite, diarrhea, dizziness, or headache may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly. Remember. Plaquenil Oral Uses, Side Effects, Interactions.. Hydroxychloroquine - Wikipedia. Plaquenil Side Effects on Your Eyes and Vision. Sep 13, 2019 Check with your doctor immediately if any of the following side effects occur while taking hydroxychloroquine Incidence not known Blistering, peeling, loosening of the skin Sep 13, 2019 For the Consumer. Continuing ringing or buzzing or other unexplained noise in the ears. feeling of constant movement of self or surroundings. irritability. nausea. nervousness. nightmares. sensation of spinning. shakiness and unsteady walk. uncontrolled eye movements. unsteadiness, trembling, or. 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.