The uses of Quinine include: Quinine is used alone or with other medications to treat malaria (a serious or life-threatening illness that is spread by mosquitos in certain parts of the world). Quinine should not be used to prevent malaria or to prevent or treat nighttime leg cramps. Quinine is in a class of medications called antimalarials. It works by killing the organisms that cause malaria.
Quinine comes as a capsule to take by mouth. It usually is taken with food three times a day (every 8 hours) for 3-7 days. Take quinine at around the same times every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take quinine exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
Swallow the capsules whole; do not open, chew, or crush them. Quinine has a bitter taste.
You should begin to feel better during the first 1-2 days of your treatment. Call your doctor if your symptoms do not improve or if they get worse. Also call your doctor if you have a fever soon after you finish your treatment. This could be a sign that you are experiencing a second episode of malaria.
Take quinine until you finish the prescription, even if you feel better. If you stop taking quinine too soon or if you skip doses, your infection may not be completely treated and the organisms may become resistant to antimalarials.
Quinine is also sometimes used to treat babesiosis (a serious or life-threatening illness that is transmitted from animals to humans by ticks). Talk to your doctor about the risks of using this drug for your condition.