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. Malaria is spread by mosquitoes, which transmit the parasites that cause the infection, usually in tropical and subtropical parts of the world. Plaquenil and wet macular degeneration Hydroxychloroquine bull's eye maculopathy guidelines Plaquenil lower seizure threshold MORE COMMON side-effects include Nausea & diarrhea – Plaquenil agrees with most people. Rarely it can cause an upset stomach or diarrhea. Skin rash – Plaquenil can rarely cause a rash. Patients who experience this rare side effect should stop taking this medicine and contact their doctor. Headaches – Plaquenil can rarely cause a headache. SIDE EFFECTS. The following adverse reactions have been identified during post-approval use of PLAQUENIL or other 4-aminoqunoline compounds. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. May 24, 2019 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. Weight loss. Upset stomach or throwing up. Stomach pain or diarrhea. Feeling tired or weak. Change in color of skin. Change in color of hair. Hair loss. These are not all of the side effects that may occur. For example, it may be combined with an antibiotic to treat chronic Q-fever, which humans usually catch from farm animals or raw milk. Plaquenil is used to treat other types of infections too. Plaquenil common side effects Plaquenil Side Effects Common, Severe, Long Term -, Side Effects of Plaquenil Hydroxychloroquine, Chloroquin dosesHydroxychloroquine retinopathy after short-term therapyPlaquenil skin cha ges Some side effects of hydroxychloroquine may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Hydroxychloroquine Side Effects Common, Severe, Long Term.. Hydroxychloroquine Indications, Side Effects, Warnings.. Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects.. Mar 17, 2019 Common hydroxychloroquine side effects may include headache, dizziness, ringing in your ears; nausea, vomiting, stomach pain; loss of appetite, weight loss; mood changes, feeling nervous or irritable; skin rash or itching; or. hair loss. Plaquenil hydroxychloroquine belongs to a group of medicines called quinolines. 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. Feb 19, 2020 Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. What is the most important information I should know about hydroxychloroquine Plaquenil, Plaquenil Sulfate, Quineprox? Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye.