Plaquenil is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. Receptor tyrosine kinase dengue virus chloroquine Plaquenil eye exam report It is a good idea to advise the prescribing physician whenever one uses more or less than the prescribed amount of a medication. However, in general terms, taking 400 mg of hydroxychloroquine is within a safe range for most people. This may lead to lasting eyesight problems. The risk may be higher if you have some types of eye or kidney problems. The risk may also be higher with some doses of hydroxychloroquine, if you use hydroxychloroquine for longer than 5 years, or if you take certain other drugs like tamoxifen. Call your doctor right away if you have any eyesight changes like blurred or foggy eyesight, trouble focusing or reading, or trouble seeing in dim light. If you don't have to, don't stop your plaquenil. I stopped taking the plaquenil the beginning of December. It doesn't agree with my stomach I take it with meals too. And since I hadn't had a miraculous recovery the 6 months I'd been on it, I didn't think there was any harm in stopping it. Plaquenil is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. This medicine is not effective against all strains of malaria. What happens if you take too much hydroxychloroquine Hydroxychloroquine - Side Effects, Uses, Dosage, Overdose., Hydroxychloroquine Indications, Side Effects, Warnings. Hydroxychloroquine dosage for osteoarthritisPlaquenil annual eye exam Hydroxychloroquine can be taken with a glass of milk or a meal to decrease nausea. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take hydroxychloroquine exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor. Hydroxychloroquine MedlinePlus Drug Information. Stopping plaquenil. DailyStrength. Hydroxychloroquine Indications, Side Effects, Warnings -. Plaquenil, hydroxychloroquine HCQ, is an anti-malarial medication that has been proven to be useful in the treatment of patients with rheumatoid arthritis RA, systemic lupus erythematosus SLE and other inflammatory and autoimmune diseases. In Sjögren’s, Plaquenil is used to treat many symptoms. 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. 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.