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CHLOROQUINE (KLOR oh kwin) is used to treat or prevent malaria infections. It is also used to treat amebiasis.
This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.
They need to know if you have any of these conditions:
eye disease, vision problems
glucose 6-phosphate dehydrogenase (G6PD) deficiency
history of seizures
an unusual or allergic reaction to chloroquine, hydroxychloroquine, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. To prevent malaria, take this medicine on the same day each week starting 2 weeks before entering the endemic area and continue for 8 weeks after leaving. Take your doses at regular intervals. Do not take your medicine more often than directed.
Talk to your pediatrician regarding the use of this medicine in children. While this drug may be prescribed for selected conditions, precautions do apply.
Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.
NOTE: This medicine is only for you. Do not share this medicine with others.
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
Do not take this medicine with any of the following medications:
certain antibiotics like erythromycin, levofloxacin, pentamidine
certain medicines for depression, anxiety, or psychotic disturbances
certain medicines for fungal infections like fluconazole, itraconazole, ketoconazole, posaconazole, voriconazole
certain medicines for irregular heart beat like dofetilide, dronedarone
This medicine may also interact with the following medications:
other medicines that prolong the QT interval (cause an abnormal heart rhythm)
This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.
Tell your doctor or health care professional if your symptoms do not start to get better in a few days. If you are taking this medicine for a long time, visit your doctor or health care professional for regular checks. If you notice any changes in your vision see your eye doctor for an eye exam.
If you get a fever during or after you start taking this medicine, do not treat yourself. Contact your doctor or health care professional immediately.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells.
While in areas where malaria is common, you should take steps to prevent being bit by mosquitos. This includes staying in air-conditioned or well-screened rooms to reduce human-mosquito contact, sleep under mosquito netting, preferably one with pyrethrum-containing insecticide, wear long-sleeved shirts or blouses and long trousers to protect arms and legs, apply mosquito repellents containing DEET to uncovered areas of skin, and use a pyrethrum-containing flying insect spray to kill mosquitos.
This medicine can make you more sensitive to the sun. Keep out of the sun. If you cannot avoid being in the sun, wear protective clothing and use sunscreen. Do not use sun lamps or tanning beds/booths.
Avoid products with antacids and kaolin for 4 hours before and after taking a dose of this medicine.
Side effects that you should report to your doctor or health care professional as soon as possible:
allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
changes in vision
hearing loss or ringing
feeling faint, lightheaded
fever or infection
unusual bleeding or bruising
unusually weak or tired
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
bleaching of body hair
blue-black color to the skin, nails
loss of appetite
This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Keep out of the reach of children. In children, this medicine can cause overdose with small doses.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Throw away any unused medicine after the expiration date.
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