Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered. To do so may increase the chance of serious side effects. Why does plaquenil take so long to work Hydroxychloroquine and lupus pregnancy Chloroquine against the coronavirus clinical data still limited. We will have to continue to evaluate the effectiveness of chloroquine, but a consensus of experts recommends in the scientific articles cited above to include, in China, chloroquine phosphate in the recommendations for patient management, 500 mg twice a day for 10 days. Get medical help right away if you have any very serious side effects, including severe dizziness, fainting, fast/slow/irregular heartbeat, seizures. This medication may cause serious eye/vision problems. 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. If you already have malaria, you should still keep taking this medicine for the full time of treatment even if you begin to feel better after a few days. If you stop taking this medicine too soon, your symptoms may return. If you are taking this medicine to help keep you from getting malaria, keep taking it for the full time of treatment. Chloroquine phosphate 500 mg side effects Chloroquine Oral Route Proper Use - Mayo Clinic, Chloroquine Phosphate 500 mg Tablet Chloroquine brain cancerRetinae eye drops hydroxychloroquinePlaquenil for itp 1 80 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. Chloroquine Indications, Side Effects, Warnings -. Side Effects of Aralen Chloroquine, Warnings, Uses. Is Chloroquine a Cure for Coronavirus? Scientists Say.. Each tablet contains 500 mg of Chloroquine phosphate USP, equivalent to 300 mg Chloroquine base. Inactive Ingredients colloidal silicon dioxide, dibasic calcium phosphate, hydroxypropylmethylcellulose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate80, pregelatinized starch, sodium starch glycolate and titanium dioxide. Each tablet contains 500 mg of chloroquine phosphate USP, equivalent to 300 mg chloroquine base. Inactive Ingredients colloidal silicon dioxide, dibasic calcium phosphate, hydroxypropylmethylcellulose, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polysorbate80, pregelatinized starch, sodium starch glycolate and titanium dioxide. Blurred vision, nausea, vomiting, abdominal cramps, headache, and diarrhea may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects.