These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Plaquenil does increase liver enyzmes Could hydroxychloroquine become toxic Macrobid and plaquenil Plaquenil and erosive osteoarthritis One Plaquenil tablet contains 200 mg of hydroxychloroquine sulfate, which is equivalent to 155 mg base. Take Plaquenil with a meal or a glass of milk. Malaria. Prophylaxis Adults 400 mg 310 mg base once weekly on the same day of each week starting 2 weeks prior to exposure, and continued for 4 weeks after leaving the endemic area. Take this medication with a meal or a glass of milk to prevent stomach upset. Common side effects include nausea, loss of appetite, headache, and diarrhea. Plaquenil can cause blurred vision and dizziness. Do not drive or operate heavy machinery until you know how it affects you. 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. If you notice any other effects, check with your healthcare professional. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them: Other side effects not listed may also occur in some patients. Plaquenil 200 mg tablets side effects Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects., Plaquenil - Side Effects, Uses, Dosage, Overdose. Plaquenil help rxPlaquenil cost per pillWhy does chloroquine itch What Are Side Effects of Plaquenil? Common side effects of Plaquenil include. nausea, vomiting, stomach pain or cramps, loss of appetite, weight loss, diarrhea, dizziness, spinning sensation, headache, ringing in your ears, mood changes, nervousness, irritability, skin rash, itching, or; hair loss. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. Hydroxychloroquine Plaquenil. Hydroxychloroquine Side Effects, Dosage, Uses, and More. What are the side effects of hydroxychloroquine Plaquenil? Side effects include irritability, headache, weakness, hair lightening or loss, stomach upset, nausea, dizziness, muscle pain, rash and itching. In this review, we analyze Plaquenil side effects by the time on the drug, gender and age of the people who have side effects while taking Plaquenil. 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 eHealthMe analyzes includes Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.