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. Nonbiological dmard antimalarial hydroxychloroquine plaquenil Plaquenil grapefruit Plaquenil risks Coming off plaquenil Overdose. Chloroquine is very toxic in overdosage; overdosage is extremely hazardous and difficult to treat. Urgent advice from the National Poisons Information Service is essential. Life-threatening features include arrhythmias which can have a very rapid onset and convulsions which can be intractable. Aralen chloroquine phosphate is an antimalarial drug used to treat and to prevent malaria. It is also used to treat infections caused by amoebae. Aralen is available in generic form. Common side effects of Aralen include blurred vision, nausea, vomiting, abdominal or stomach cramps, headache, diarrhea, temporary hair loss, changes in hair color, or Tell your doctor if any of the following side effects become severe or don't go away Loss of appetite. Mild dizziness. Mild diarrhea. Clumsiness. Mild headache. Nausea or stomach cramps. 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 expired side effects Chloroquine Injection Uses, Side Effects, Interactions., Side Effects of Aralen Chloroquine, Warnings, Uses Round hydroxychloroquineHydroxychloroquine what is a good dose Aralen Chloroquine may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Aralen Chloroquine Uses, Dosage, Side Effects.. Chloroquine Aralen - Side Effects, Dosage, Interactions.. Chloroquine vs Hydroxychloroquine Comparison -. Chloroquine does not treat the hypnozoite liver stage forms of Plasmodium and will therefore not prevent relapses of malaria due to P. vivax or P. ovale. Additional treatment with an anti-malarial agent active against these forms, such as an 8-aminoquinoline, is required for the treatment of infections with P. vivax and P. ovale. Cardiac Effects Check with your doctor as soon as possible if any of the following side effects occur black, tarry stools; blood in urine or stools; convulsions seizures cough or hoarseness; eye pain; feeling faint or lightheaded; fever or chills; increased muscle weakness; lower back or side pain; mood or other mental changes; painful or difficult urination If you experience drowsiness, dizziness, hypotension or a headache as side-effects when using Chloroquine Tablet medicine then it may not be safe to drive a vehicle or operate heavy machinery. One should not drive a vehicle if using the medicine makes you drowsy, dizzy or lowers your blood-pressure extensively.