This medicine is also sometimes given off-label to help the following conditions: Also, let your doctor know if you drink large amounts of alcohol before starting on this medicine. Your doctor will probably want to order frequent tests to check your body's response to chloroquine. Plaquenil and eyes side effects Hla-dr4 rheumatoid arthritis and hydroxychloroquine Tell your doctor immediately if you notice any changes in vision or if you've ever had vision changes while taking chloroquine Aralen or primaquine. Pregnancy and Plaquenil. Common Side. Oct 02, 2013 Chloroquine comes in tablet form. Take this medication with food to minimize stomach upset. Chloroquine is taken once or twice a day. If used for the prevention of malaria, it is taken once a week beginning 2 weeks prior to traveling to an area where malaria is common. Common side effects include headache, loss of appetite, diarrhea, and upset. Chloroquine is a relatively well-tolerated. medicine. The most common adverse reactions reported are stomach pain, nausea, vomiting, and headache. These side effects can often be lessened by taking chloroquine with food. Chloroquine may also cause itching in some people. All medicines may have some side effects. Let your healthcare provider know if your symptoms either don't improve or worsen while taking this medicine. Keep all appointments with your doctor and laboratory. Side effects of chloroquine in pregnancy Aralen Chloroquine Uses, Dosage, Side Effects., Chloroquine - Side Effects, Uses, Dosage, Overdose, Pregnancy. Images early plaquenil toxicity fundus autofluorescenceProtocol for hydroxychloroquine screening optometry Chloroquine phosphate tablets should not be used in these conditions unless the benefit to the patient outweighs the potential risks. Usage in Pregnancy Usage of Chloroquine during pregnancy should be avoided except in the prophylaxis or treatment of malaria when the benefit outweighs the potential risk to the fetus. Chloroquine - FDA prescribing information, side effects and uses. Medicines for the Prevention of Malaria While Traveling - Chloroquine.. Common and Rare Side Effects for Chloroquine Injection. Find information about common, infrequent and rare side effects of Primaquine Oral. Tell your doctor if you have ever had vision changes while taking chloroquine phosphate, chloroquine hydrochloride Aralen HCl, or hydroxychloroquine Plaquenil. tell your doctor if you are pregnant or plan to become pregnant. If you become pregnant while using chloroquine phosphate, call your doctor. Aug 18, 2015 Side effects of antimalarial drug can overlap with malaria symptoms. We evaluated 50 patients with vivax malaria in Mâncio Lima, Acre, treated with chloroquine and primaquine. Patients were evaluated for the presence of 21 symptoms before and.