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. Chloroquine intercalation Hydroxychloroquine plaquenil ra Plaquenil toxicity eye oct Cumulative chloroquine dosage What are some other side effects of Plaquenil? All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away Dizziness. Headache. Feeling nervous and excitable. Not hungry. Will the side effects go away by themselves? Can I do anything to prevent the side effects? Do I need to have any tests to monitor for side effects? Are there any dangerous side effects I should know about? What should I do if I have a side effect? If I have a side effect, are there other drugs I Plaquenil side effects. Get emergency medical help if you have signs of an allergic reaction to Plaquenil hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Taking Plaquenil long-term or at high doses may cause irreversible damage to the retina of your eye. 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. Do the side effects of plaquenil go away Protecting your eyesight when taking Plaquenil Lupus., Drug and Medication Side Effects - Verywell Health Chloroquine nightmaresHydroxychloroquine logpChloroquine chemistryDoes plaquenil contain sulfate Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. Mild side effects may go away within a few days. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Plaquenil Uses, Dosage & Side Effects -. Lupus Medicines Hydroxychloroquine - Brigham and Women's.. So, I've read the half-life is from 30-60 days. That is one of the reasons I didn't want to take it - that's a long time to stick around. I did read hair loss, photosensitivity, itching area all potential side effects of Plaquenil, so hopefully those will subside soon as the med levels drop. Saturday was a week since I stopped taking Plaquenil, aka Hydroxychloroquine, per my doctor's instructions, and I think I am going through some form of withdrawal. I took the drug as a treatment for sarcoidosis and one of the side effects is a reduction in white blood cells, which is what has happened to me. How to Deal With Side Effects of Medicine. Some side effects go away over time as your body gets used to a new drug, so your doctor may recommend you stick with your current plan for a little.