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. Chloroquine dose in rheumatoid arthritis Plaquenil therapy What are some other side effects of Chloroquine? All drugs may cause side effects. However, many people have no side effects or only have minor side effects. 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 Belly pain. Stomach cramps. Not hungry. Cardiac Effects Cases of cardiomyopathy resulting in cardiac failure, in some cases with fatal outcome, have been reported in patients treated during long term therapy at high doses with Chloroquine see ADVERSE REACTIONS and OVERDOSAGE. Monitor for signs and symptoms of cardiomyopathy and discontinue Chloroquine if cardiomyopathy develops. Children taking this medication for a long period of time may experience permanent damage to their vision and other side effects. How to take hydroxychloroquine All possible dosages and forms may. 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. Chloroquine long term side effects Hydroxychloroquine Side Effects Common, Severe, Long Term., Chloroquine - FDA prescribing information, side effects and uses Plaquenil for lupus erythematosus Possible explanations for these findings are that HCQ/CQ-prescribing providers may be unfamiliar with ocular side effects of long-term use or the patient characteristics associated with high risk for macular toxicity, or they may not appreciate the usefulness of pre-emptive screening, before vision is lost. Are Long-Term Chloroquine or Hydroxychloroquine Users.. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Hydroxychloroquine Side-effects, uses, time to work. Aralen Chloroquine may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. All patients on long-term therapy with this preparation should be questioned and examined periodically, including testing knee and ankle reflexes. 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.