Chloroquine is used to prevent or treat malaria caused by mosquito bites. Chloroquine belongs to a class of drugs known as antimalarials.The United States Centers for Disease Control provide updated guidelines and travel recommendations for the prevention and treatment of malaria in different parts of the world. Discuss the most recent information with your doctor before traveling to areas where malaria occurs.Chloroquine is also used to treat infection caused by a different type of parasite (ameba).Chloroquine is not recommended for coronavirus infection, also known as COVID-19, unless you are enrolled in a study. Talk to your doctor about the risks and benefits.
How to use Chloroquine Phosphate
Take this medication by mouth, usually with food to prevent stomach upset, exactly as directed by your doctor. The dosage and length of treatment are based on your medical condition and response to treatment. In children, dosage is also based on weight.
To prevent malaria, take chloroquine as directed by your doctor, usually once a week on the same day each week. Mark a calendar to help you remember. This drug is usually started 1 to 2 weeks before entering the malarious area. Continue to take it weekly while in the area and for 4 to 8 weeks after leaving the area, or as directed by your doctor.
To treat malaria or an ameba infection, follow your doctor's instructions.
If you are also taking a certain drug for diarrhea (kaolin) or taking antacids (such as magnesium/aluminum hydroxide), take chloroquine at least 4 hours before or after these products. These products may bind with chloroquine, preventing your body from fully absorbing it.
Use this medication regularly in order to get the most benefit from it. Take this medication exactly as prescribed. Do not stop taking it without talking with your doctor. It is important to continue taking this for the length of time prescribed. Stopping prevention or treatment too soon may lead to infection or a return of the infection.
Tell your doctor if your condition lasts or gets worse. Chloroquine may not prevent malaria in all cases. If you experience fever or other symptoms of illness, get medical help right away (especially while in the malarious area and for 2 months after returning from the area). You may need a different medication. Avoid exposure to mosquitoes. (See also Notes section.
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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.