Chloroquine is a medication to treat or prevent malaria, a disease caused by parasites. This medicine works by interfering with the growth of parasites in the red blood cells of the human body.

Parasites that cause malaria typically enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia.

Chloroquine is used to treat and to prevent malaria. Chloroquine is also used to treat infections caused by amoebae.

Submit your review

Create your own review

Average rating:  
 0 reviews
  • Aralen Phosphate
  • Rare:
    Black, tarry stools
    bleeding gums
    blistering, peeling, or loosening of the skin
    blood in the urine or stools
    blurred vision
    chest pain
    difficulty with swallowing
    dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
    fast heartbeat
    joint or muscle pain
    large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs
    lower back or side pain
    painful or difficult urination
    pale skin
    pinpoint red spots on the skin
    puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
    red skin lesions, often with a purple center
    red, irritated eyes
    skin rash, hives, or itching
    sore throat
    sores, ulcers, or white spots on the lips or in the mouth
    swollen or painful glands
    tightness in the chest
    unusual bleeding or bruising
    unusual tiredness or weakness
    Incidence not known:
    Blurred vision or any other change in vision
    change in near or distance vision
    continuing ringing or buzzing or other unexplained noise in the ears
    dark urine
    difficulty in focusing the eyes
    difficulty with speaking
    disturbed color perception
    double vision
    general tiredness and weakness
    halos around lights
    hearing loss
    inability to move the eyes
    increased blinking or spasms of the eyelid
    light-colored stools
    loss of balance control
    muscle trembling, jerking, or stiffness
    muscular pain, tenderness, wasting, or weakness
    nausea and vomiting
    night blindness
    overbright appearance of lights
    shuffling walk
    sticking out of the tongue
    stiffness of the limbs
    trouble breathing
    tunnel vision
    twitching, twisting, or uncontrolled repetitive movements of the tongue, lips, face, arms, or legs
    uncontrolled movements, especially of the face, neck, and back
    upper right abdominal or stomach pain
    yellow eyes and skin
  • The dosage of chloroquine phosphate is often expressed in terms of equivalent chloroquine base. Each 500 mg tablet of ARALEN contains the equivalent of 300 mg chloroquine base. In infants and children the dosage is preferably calculated by body weight.