What is primaquine phosphate used for?

Primaquine Phosphate Tablet is used alone or with another medication to treat malaria (a serious infection that is spread by mosquitoes in certain parts of the world and can cause death) and to prevent the disease from coming back in people that are infected with malaria. Primaquine is in a class of medications called antimalarials.

How do you use primaquine tablets?

Take this medication by mouth, usually once daily with food to prevent stomach upset, or as directed by your doctor. Follow your doctor’s directions exactly. Primaquine is usually taken for 2 weeks after you have left the malarious area.

What are the side effects of Primaquine Phosphate Tablet?

Side Effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

Incidence not known
Back, leg, or stomach pains
black, tarry stools
bleeding gums
bluish-colored lips, fingernails, or palms
chest pain
chills
cough
dark urine
difficulty breathing
dizziness, faintness, or lightheadedness
fast, slow, pounding, or irregular heartbeat
fever
general body swelling
headache
loss of appetite
nausea or vomiting
nosebleeds
painful or difficult urination
pale skin
rapid heart rate
sore throat
sores, ulcers, or white spots on the lips or in the mouth
swollen glands
unusual bleeding or bruising
unusual tiredness or weakness
yellowing of the eyes or skin

More common
Heartburn
itching, skin rash
pain or discomfort in the chest, upper stomach, or throat
stomach cramps
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects.