Description

Chloroquine is used to prevent and treat malaria. It is also used to treat liver infection caused by protozoa (extraintestinal amebiasis). Chloroquine may also be used to treat coronavirus (COVID-19) in certain hospitalized patients.

Using chloroquine alone or with other medicines (eg, azithromycin) may increase your risk of heart rhythm problems (eg, QT prolongation, ventricular fibrillation, ventricular tachycardia). Chloroquine should only be used for COVID-19 in a hospital or during clinical trials. Do not take any medicine that contains chloroquine unless prescribed by your doctor.

Chloroquine belongs to a group of medicines known as antimalarials. It works by preventing or treating malaria, a red blood cell infection transmitted by the bite of a mosquito. However, chloroquine is not used to treat severe or complicated malaria and to prevent malaria in areas or regions where chloroquine is known not to work (resistance).