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List of Medications

Chloroquine Phosphate

Chloroquine phosphate is a custom made drug, classified as an antimalarial, that is primarily used to prevent or treat malaria. Malaria parasites infiltrate the body through mosquito bites and then often thrive within the liver or red blood cells. Chloroquine phosphate targets and kills malaria parasites in red blood cells. It is sometimes used in combination with other malaria drugs when parasites are suspected to be living in other body tissues. Chloroquine phosphate is also used in the fight against another parasite, ameba, which attacks the human body and causes infection.

How to Use Chloroquine phosphate

Chloroquine phosphate is taken orally, daily or weekly as directed by your physician. Specific dosage, and timing/scheduling are dependent upon an individual's medical condition. Your physician will provide the needed information regarding dosage and scheduling. Anyone planning travel to a country where malaria is known to be a problem should consult with their physician about the options for preventing malaria.

Possible Side Effects

Many side effects are possible and have been seen in patients taking chloroquine phosphate; however, some patients may not experience side effects. Pay attention to subtle or obvious changes within your body while taking chloroquine phosphate. A partial list of some of the most common side effects seen in patients taking this drug is as follows:

  • Loss of Appetite
  • Upset Stomach
  • Pain in Stomach
  • Diarrhea
  • Skin Rash
  • Itching
  • Hair Loss
  • Mental Changes
  • Mood Changes
  • Headache

There are other side effects that could possibly present. If you experience any side effects that are lingering or getting decidedly worse, contact your physician.

If you experience any of the following symptoms, call your doctor immediately:

  • Vomiting
  • Seeing Light Flashes and/or Streaks
  • Blurred Vision
  • Difficulty Breathing
  • Irregular Heartbeat
  • Drowsiness
  • Difficulty Hearing
  • Ringing In Ears
  • Muscle Weakness
  • Reading or Vision Difficulties
  • Convulsions


Do not take chloroquine phosphate if you are breast-feeding or about to begin breast-feeding.

Do not use chloroquine phosphate if you are pregnant or about to become pregnant unless you have consulted with your physician beforehand and they have decided that the use of chloroquine phosphate is needed.

As there are many medical conditions that may be affected adversely by the use of chloroquine phosphate, patients with any of the following medical conditions should not take chloroquine phosphate unless they have discussed all their options and medical history with their physician and their physician has decided that chloroquine phosphate is the best course of treatment:

  • Visual Field Defect
  • Problems with Eyesight
  • Anemia
  • Seizures
  • Anemia from Pyruvate Kinase and G6PD Deficiencies
  • Drinking Too Much Alcohol
  • Decreased White Blood Cells
  • Liver Problems
  • Disease of the Retina of the Eye
  • Maculopathy
  • Glucose-6-Phosphate Dehydrogenase (G6PD) Deficiency
  • Hearing Loss
  • Porphyria
  • Psoriasis
  • "It is rare to find health professionals who are so willing to educate the patient on what they need to know."

    Clair C. | West Hollywood, CA