Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking chloroquine: Incidence not known Some side effects of chloroquine may occur that usually do not need medical attention. Plaquenil schedule Pct and hydroxychloroquine Chloroquine is a derivative of 4-aminoquinoline, which is used in the malaria prophylaxis and treatment and the therapy of some connective tissue diseases. Its narrow therapeutic index causes that the medicine is relatively toxic, especially in the case of an overdose or an acute intoxication. Oct 01, 2018 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. Although the mechanisms of the two agents are presumed to be the same, many reports suggest that chloroquine is more toxic to the retina than hydroxychloroquine. The toxic dosage for chloroquine was derived from hydroxychloroquine retinal toxicity studies, although no definitive data have shown pharmacologic equivalence. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. These side effects may go away during treatment as your body adjusts to the medicine. Chloroquine phosphate toxic CHLOROQUINE PHOSPHATE Aralen, HYDROXYCHLOROQUINE., Chloroquine - FDA prescribing information, side effects and uses Getting off of plaquenil Chloroquine is an aminoquinoline used for the prevention and therapy of malaria. It is also effective in extraintestinal amebiasis and as an antiinflammatory agent for therapy of rheumatoid arthritis and lupus erythematosus. Chloroquine - LiverTox - NCBI Bookshelf. Chloroquine and Hydroxychloroquine Toxicity Practice.. CHLOROQUINE sulfate or phosphate oral - Essential drugs. Chloroquine Phosphate *** The information contained here is subject to changes as I experiment and learn more about Chloroquine Phosphate *** What It Treats – Marine Ich Cryptocaryon irritans, Marine Velvet Disease Amyloodinium ocellatum, Brooklynella hostilis and Uronema marinum. How To. Chloroquine is a 4-aminoquinoline with antimalarial, anti-inflammatory, and potential chemosensitization and radiosensitization activities. Although the mechanism is not well understood, chloroquine is shown to inhibit the parasitic enzyme heme polymerase that converts the toxic heme into non-toxic hemazoin. The usefulness of hypokalemia as an indicator in the evaluation of chloroquine toxicity was studied in a retrospective series of 191 acute chloroquine poisonings. Results indicated that the risk of severe poisoning and death are proportional to the degree of hypokalemia.