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. Will plaquenil help irritable bowel syndrome Delayed allergic reaction to plaquenil Plaquenil and nausea Hydroxychloroquine sulfate 200 mg cost Hydroxychloroquine should be taken with a meal or a glass of milk to minimise the gastrointestinal side effects. Alternate-day dosing can be used. For example, hydroxychloroquine 400 mg alternating with hydroxychloroquine 200 mg daily can be used to reach effective daily dosing of 300 mg/day. Hydroxychloroquine HCQ, sold under the brand name Plaquenil among others, is a medication used for the prevention and treatment of certain types of malaria. Specifically it is used for chloroquine-sensitive malaria. Other uses include treatment of rheumatoid arthritis, lupus, and porphyria cutanea tarda. It is taken by mouth. Common side effects include vomiting, headache, changes in vision. May 24, 2019 What are some side effects that I need to call my doctor about right away? WARNING/CAUTION Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may b 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. Hydroxychloroquine rare side effects Hydroxychloroquine Oral Route Side Effects - Mayo Clinic, Hydroxychloroquine - Wikipedia Chloroquine resistant malaria drugHydroxychloroquine trial netHydroxychloroquine mechanism of action in sleStopping plaquenil beforesurgeryCan you take hydroxychloroquine with methotrexate Side effects include irritability, headache, weakness, hair lightening or loss, stomach upset, nausea, dizziness, muscle pain, rash and itching. Rarely, hydroxychloroquine can affect the bone marrow leading to reduced white blood cells leukopenia or platelets thrombocytopenia and abnormal red blood cells anemia. Hydroxychloroquine Plaquenil Side Effects & Dosage for Malaria. Hydroxychloroquine Indications, Side Effects, Warnings.. Long-Term Side Effects of Plaquenil for Rheumatoid Arthritis.. Hydroxychloroquine side effects. Get emergency medical help if you have signs of an allergic reaction to hydroxychloroquine hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Plaquenil is the brand name of hydroxychloroquine, a drug used to prevent or treat malaria. Plaquenil can cause serious side effects when used in high doses for chronic diseases such as RA over the long term. Hydroxychloroquine Plaquenil is a drug that is classified as an anti-malarial drug. Plaquenil is prescribed for the treatment or prevention of malaria. It is also prescribed for the treatment of rheumatoid arthritis, lupus, and the side effects of lupus such as hair loss, joint pain, and more.