Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Effects of chloroquine on the liver Tab chloroquine price Hydroxychloroquine is not approved for use by anyone younger than 18 years old. How should I take hydroxychloroquine? Take hydroxychloroquine 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. You must check to make sure that it is safe for you to take hydroxychloroquine with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor. What are some things I need to know or do while I take Hydroxychloroquine? For all uses of hydroxychloroquine For lupus erythematosus, one or two tablets are usually taken once or twice daily. For rheumatoid arthritis, one to three tablets are usually taken once a day. Hydroxychloroquine can be taken with a glass of milk or a meal to decrease nausea. Follow the directions on your prescription label carefully. Hydroxychloroquine may also be used for purposes not listed in this medication guide. Hydroxychloroquine is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Does hydroxychloroquine require a prescription Plaquenil Hydroxychloroquine - Side Effects, Dosage., Hydroxychloroquine - Prescription Drug. Plaquenil structure The action of hydroxychloroquine is cumulative and may require weeks to months to achieve the maximum therapeutic effect see CLINICAL PHARMACOLOGY. Initial adult dosage 400 mg to 600 mg 310 to 465 mg base daily, administered as a single daily dose or in two divided doses. Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects.. Hydroxychloroquine MedlinePlus Drug Information. Hydroxychloroquine Plaquenil Side Effects & Dosage for.. What do I need to tell my doctor BEFORE I take Hydroxychloroquine? If you have an allergy to hydroxychloroquine or any other part of hydroxychloroquine. If you are allergic to hydroxychloroquine; any part of hydroxychloroquine; or any other drugs, foods, or substances. Tell your doctor about the allergy and what signs you had. Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except. Hydroxychloroquine may not prevent malaria in all cases. If you experience fever or other symptoms of illness, seek immediate medical attention. You may need a different medication.