Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Eye test for plaquenil Chloroquine resistance prophylaxis Does plaquenil cause mouth sores Osteoarthritis OA and rheumatoid arthritis RA are chronic joint disorders. RA is also an autoimmune disease. OA and RA symptoms and signs include joint pain, warmth, and tenderness. Over-the-counter pain relievers treat both diseases. There are several prescription medications that treat RA. Take Plaquenil exactly as prescribed by your doctor. Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended. Plaquenil is sometimes given only once per week. Choose the same day each week to take this medicine if you are on a weekly dosing schedule. Take Plaquenil. Plaquenil is a slow-acting drug, meaning that it can take up to 6 months to experience the full benefits of this medication, but it is possible for symptoms to improve in as few as 1 or 2 months. Plaquenil and other antimalarials are the key to controlling lupus long-term, and some lupus patients may be on Plaquenil for the rest of their lives. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Hydroxychloroquine is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. What otc meds can be taken with plaquenil What Pain Medication Can I Take While on Warfarin?, Plaquenil Uses, Dosage & Side Effects - Is doxycycline and plaquenil similar drugsPlaquenil vs humiraChloroquine interfere nucleic acid biosynthesisMalaria treatment drugs chloroquine Avoid taking an antacid or Kaopectate kaolin-pectin within 4 hours before or after you take hydroxychloroquine. Some antacids can make it harder for your body to absorb hydroxychloroquine. Hydroxychloroquine side effects. Get emergency medical help if you have signs of an allergic reaction to hydroxychloroquine hives; difficulty breathing. Hydroxychloroquine Uses, Dosage & Side Effects -. Plaquenil What You Need to Know - Kaleidoscope Fighting Lupus. Plaquenil oral Reviews and User Ratings Effectiveness, Ease.. Talk to your doctor if you are using marijuana cannabis. Alcohol can also increase your risk of liver problems while you are taking this drug. This medication may make you more sensitive to the sun. Hydroxychloroquine Plaquenil is used to treat malaria, lupus, and rheumatoid arthritis. Learn about side effects, warnings, dosage, and more. and over-the-counter drugs that you are taking. The usual adult dose for treating malaria is 800 mg initially, followed by 400 mg 6-8 hours later and then 400 mg at 24 hours and 48 hours. The dose for malaria prevention is 400 mg every week starting 1 or 2 weeks before exposure and for 4 weeks after leaving the high risk area. The recommended adult dose for rheumatoid arthritis is 400-600 mg daily for 4-12 weeks followed by 200-400 mg daily.