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. Hydroxychloroquine teratogenicity 7 day chloroquine program Plaquenil reviews by patients Chloroquine plus proguanil Hydroxychloroquine oral tablet is available as a brand-name drug and a generic drug. Brand name Plaquenil. Hydroxychloroquine comes only as a tablet you take by mouth. Hydroxychloroquine is used to treat malaria, lupus erythematosus, and rheumatoid arthritis. Cimetidine Moderate Avoid concomitant use of hydroxychloroquine and cimetidine as cimetidine may inhibit the metabolism of hydroxychloroquine as observed with the structurally similar chloroquine. However, the mechanism of inhibition of chloroquine metabolism appears to be via CYP inhibition, and hydroxychloroquine is not a known CYP substrate; cimetidine inhibition of hydroxychloroquine metabolism has not been demonstrated. Not actual vomiting, but distinct nausea and muzzyness. Worst of all depression. As the addition of Hydroxychloroquine to my cocktail methotrexate and Enbrel Anti-TNF, didn't seem to be making any difference, I stopped it a few weeks ago. 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. Plaquenil generic vomiting Hydroxychloroquine Side Effects Common, Severe, Long Term., Plaquenil hydroxychloroquine sulfate dose, indications. Hydroxychloroquine long term side effectsChloroquine cdc malariaAtarax and hydroxychloroquine suicide 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, Pictures.. Hydroxychloroquine and nausea Hi it's me again. - NRAS. Plaquenil vs. Azulfidine Prescription Treatment for.. PLAQUENIL prescription and dosage sizes information for physicians and healthcare professionals. Pharmacology, adverse reactions, warnings and side effects. 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 lupus, rheumatoid arthritis, and others. Malaria is spread by mosquitoes. Plaquenil Side Effects As with any drug, there may be side effects from taking Plaquenil including headache, ringing in the ears, spinning sensation, nausea, vomiting, stomach pain, loss of appetite, weight loss, mood changes, feeling nervous, skin rash, itching and hair loss.