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. What helps nausea from plaquenil Taking plaquenil and drinking alcohol Effect of disease stage of progression of hydroxychloroquine retinopathy Less common side effects include headache, dizziness, mood changes, and weakness. It may help to take your antimalarials with food to reduce nausea and other stomach irritations. 1 It is a rare complication, but hydroxychloroquine taken long-term may damage the retina of the eye. Nausea and diarrhea are the most common side effects, and often improve with time or by taking the medication with food. Less common side effects include rash changes in skin pigment such as darkening or dark spots, hair changes, and muscle weakness. DOSING 200 mg taken 2 times daily Hydroxychloroquine is taken orally 2 times daily with food. Call your doctor immediately or get emergency medical help if you experience any of the following serious side effects Any vision problems, such as reading difficulties, sensitivity to light. 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 less common side effects Hydroxychloroquine Oral Route Side Effects - Mayo Clinic, HYDROXYCHLOROQUINE - Low Country Rheumatology What are the side effects of the medication plaquenilHydroxychloroquine side efects The more common side effects that can occur with hydroxychloroquine include headache. dizziness. diarrhea. stomach cramps. vomiting. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Plaquenil Hydroxychloroquine - Side Effects, Dosage.. Sulfasalazine Side Effects Common, Severe, Long Term -. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Stop taking this medicine and call your doctor at once if you have trouble focusing, if you see light streaks or flashes in your vision, or if you notice any swelling or color changes in your eyes. 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. Some of the possible side effects include, but are not limited to Nausea and vomiting. Diarrhea and abdominal cramping. Headaches. Dizziness. Dangerous skin reactions. Eye damage.