Parasites that cause malaria typically enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. Teva-chloroquine phosphate Plaquenil and valley fever Chloroquine malaria tablets boots What does chloroquine treat The risk for these side effects is increased with long-term use of this medication over weeks to years and with taking this medication in high doses. List Chloroquine Phosphate side effects. Our Aralen chloroquine phosphate Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. Some side effects of chloroquine 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. Chloroquine is also used to treat amebiasis (infection caused by amoebae). Chloroquine is used to treat and to prevent malaria. Chloroquine phosphate how long do side effects last Chloroquine Indications, Side Effects, Warnings -, Side Effects of Aralen Chloroquine, Warnings, Uses Evaluation while on hydroxychloroquineChloroquine in typhoidChloroquine side effects treatment Drug Information on chloroquine includes side effects, uses, drug interactions, dosage, drug pictures, overdose symptoms, and what to avoid. Taking chloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. eMedicineHealth does not provide medical advice, diagnosis or treatment. Chloroquine Uses, Side Effects, Dosage & Interactions. Chloroquine Side Effects Common, Severe, Long Term.. Compare Plaquenil vs Chloroquine -. Find information about common, infrequent and rare side effects of Chloroquine Oral. Skip to main content. Check Your Symptoms;. Chloroquine Phosphate Side Effects by Likelihood and Severity. 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. To do so may increase the chance of serious side effects. For patients taking chloroquine to prevent malaria Your doctor will want you to start taking this medicine 1 to 2 weeks before you travel to an area where there is a chance of getting malaria.