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. Anesthetic considerations for patients on plaquenil Can i take iron supplements with plaquenil without getting nauseous Alternative to plaquenil for lupus For the Consumer. Cold, clammy skin. decreased urine. drowsiness. dry mouth. fast, weak pulse. increased thirst. lightheadedness, dizziness, or fainting. loss of appetite. muscle pain or cramps. numbness or tingling in the hands, feet, or lips. Avoid taking antacids and kaolin within 4 hours of taking this medicine. It is best to separate these medicines by at least 4 hours. Tell your doctor or health care professional right away if you have any change in your eyesight. Your vision and blood may be tested before and during use of this medicine. 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. Upset stomach or throwing up. Headache. Diarrhea. Change in color of skin. Change in color of hair. Hair loss. These are not all of the side effects that may occur. 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 phosphate side effects Chloroquine Oral Route Side Effects - Mayo Clinic, Chloroquine Phosphate Side Effects - GoodRx Ic hydroxychloroquineHydroxychloroquine 200 mg goodrxSide affects of plaquenilRetinal chloroquine retinopathy Common side effects include muscle problems, loss of appetite, diarrhea, and skin rash. Serious side effects include problems with vision, muscle damage, seizures, and low blood cell levels. It appears to be safe for use during pregnancy. Chloroquine is a member of the drug class 4-aminoquinoline. Chloroquine - Wikipedia. Chloroquine Indications, Side Effects, Warnings -. Chloroquine MedlinePlus Drug Information. Chloroquine Phosphate. Uses. Chloroquine is used to prevent or treat malaria caused by mosquito bites in countries where malaria is common. Malaria parasites can enter. Side Effects. Precautions. Interactions. Common side effects of chloroquine include headache, blurred vision, anorexia, nausea, diarrhea, skin rash and itching. Hepatotoxicity Despite use for more than 50 years, chloroquine has rarely been linked to serum aminotransferase elevations or to clinically apparent acute liver injury. Common side effects may include diarrhea, vomiting, stomach cramps; headache; changes in hair or skin color; temporary hair loss; or. mild muscle weakness.