Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take chloroquine with all of your drugs and health problems. Chloroquine for malaria treatment Plaquenil mayo clinic Chloroquine is rapidly and almost completely absorbed from the gastrointestinal tract, and only a small proportion of the administered dose is found in the stools. Approximately 55% of the drug in the plasma is bound to nondiffusible plasma constituents. Excretion of chloroquine is quite slow, but is increased by acidification of the urine. Metabolism About 30% of an administered dose is metabolized by the liver to monodesethyl-chloroquine and bidesethylchloroquine. Excretion About 70% of dose is excreted unchanged in urine; unabsorbed drug is excreted in feces. Small amounts of the drug may be present in urine for months after the drug is discontinued. Excretion of chloroquine is quite slow, but is increased by acidification of the urine. Chloroquine is deposited in the tissues in considerable amounts. In animals, from 200 to 700 times the plasma concentration may be found in the liver, spleen, kidney, and lung; leukocytes also concentrate the drug. For all uses of chloroquine: WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Do not start, stop, or change the dose of any drug without checking with your doctor. Chloroquine excretion Hydroxychloroquine Professional Patient Advice -, Chloroquine hydrochloride - GLOWM Plaquenil anxiety depression A 16.67 mg chloroquine PHOSPHATE/mL oral suspension equivalent to 10 mg chloroquine BASE/mL may be made from tablets. Crush two 500 mg chloroquine PHOSPHATE tablets equivalent to 300 mg BASE/tablet in a mortar and reduce to a fine powder. Add a small amount of sterile water for irrigation. Chloroquine Professional Patient Advice -. Aralen Chloroquine Uses, Dosage, Side Effects.. Ghloroquine excretion in semen following antimalarial‐drug.. Apr 13, 2019 Very small amounts of chloroquine are excreted in breast milk; when given once weekly, the amount of drug is not sufficient to harm the infant nor is the quantity sufficient to protect the child from malaria. A severe eye problem has happened with chloroquine. This may lead to lasting eyesight problems. The risk may be higher if you have some types of eye or kidney problems. The risk may also be higher with some doses of chloroquine, if you use chloroquine for longer than 5 years. The excretion of chloroquine and the major metabolite, desethylchloroquine, in breast milk was investigated in 11 lactating mothers following a single oral dose of chloroquine 600 mg basemaximum daily dose of the drug that the infant received from breast-feeding was about 0.7% of the maternal start dose.