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General Information
What should I know before taking this drug
Dosage information
Adverse reactions
Additional information if any

Hydrocad (Cadila (Vibra))
Maliago (Cipla)

Chloroquine is a prescription drug available from your pharmacy store only with the prescription of a qualified medical practitioner.

Chloroquine is pronounced as: KLOR-oh-kwin

Chloroquin is an anti infective / anti malarial drug


Chloroquine is used in the treatment of following conditions

  • Treatment and prophylaxis of malaria
  • Extra intestinal ameobiasis
  • Discoid lupus erythematosus
  • Rheumatoid arthritis
  • Lepra reactions

How to use chloroquine


  • Take Chloroquine exactly as directed by your doctor. If you do not understand these instructions, ask your pharmacist, nurse, or doctor to explain them to you.
  • It is available in the form tablet ,suspension and injection, your doctor will prescribe depending upon the severity of the disease.
  • Take oral dose with or immediately after meal with a full glass (8 ounces) of water to avoid gastric upset. Chloroquine is bitter and should not be chewed.
  •  Do not skip any doses. Continue to take it even when you feel better. You must complete the entire course of medication. If you don't, the infection will not clear completely and in due course may cause resistance to develop against the drug which will be difficult to treat.
  • In case of severe complicated malaria it is given intravenously as slow infusion under the supervision of your physician.
  • When chloroquine is used for prophylaxis it is important to start the medication 1-2 weeks before travelling to the malaria affected areas and continue it till 4 week after leaving the malaria endemic areas.
  • In spite of taking the medication regularly you can still contract the disease. If you get fever consult your physician immediately.
  • Always remember to inform your health expert if you are currently taking any prescription like beta blockers, anti arrhythmic drugs, anti depressants, antacids , digoxin, other antimalarials etc or OTC medication.
  • Inform your doctor if you have following medical conditions as Chloroquine should be used cautiously in the below mentioned conditions
    1. Glucose 6 phosphate dehydrogenase (G6PD) deficiency
    2. Liver diseases
    3. any psychiatric illnesses like anxiety, depression, delusions etc
    4. seizure disorder
    5. visual disturbances

Do not take chloroquine if you have vision problems.

Children: A special precaution is advised for usage in children.

Old people:
Pregnant woman: chloroquine belongs to FDA pregnancy category C. This means that chloroquine may harm an unborn baby if used during pregnancy but potential benefit may warrant use of the drug in pregnant woman despite potential risks. Always inform your doctor if you are pregnant or are planning for conception.

Lactating women: It is not known whether chloroquine passes into breast milk or if it could harm the baby. Do not take chloroquine with out first talking to doctor if you are breast feeding a baby.
Other: Chloroquine is not 100%protective in prevention of malaria. Its is advised to use other mosquito protective measures like using repellents, bed nets , long sleeved clothing , insect sprays etc. In case you get fever, consult your doctor immediately and seek treatment for malaria


Chloroquine is available in the form of tablets, injection, suspension and drops.


Use as directed by your physician, your physician prescribes depending on the severity of disease.
Use the complete course of medication as prescribed by your physician even though you feel better after one or two days of usage of medication.


If it is almost the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not take two doses at same time to cover up the missed dose.


In case of overdose contact your nearest poison control centre or emergency medical centre for immediate care by physician.


The most common side effects that you may experience on taking chloroquine medication are

  • Rashes and itching
  • headache
  • Anorexia
  • Abdominal pain
  • Diarrhea
  • Dizziness
  • Nausea and vomiting
  • Palpitations
  • Psychiatrics symptoms like depression, anxiety


Consult you doctor immediately if you experience the following adverse effects

  • Allergic reaction like swollen lips, shortness of breath, constricting sensation in the throat etc
  • Onset of seizures
  • Severe palpitations , irregular heart beat
  • Visual disturbances
  • Tinnitus/ ringing sensation in the ear
  • Easy bruising or bleeding


Store chloroquine at room temp (15 – 30 degrees C). Avoid excessive heat, moisture or direct sunlight, never store in the bathroom.
Keep it out of reach of children. Make sure that any left over portion is disposed off safely.

  • Chloroquine may turn the urine brownish black which is temporary and harmless. 
  • Chloroquine may cause dizziness, if you feel dizzy do not drive or take part in activity in which you need to be alert 
  • When chloroquine is used for prolonged period it is important to get periodic eye examination and laboratory test (complete blood picture, liver functions test) done to look for side effects.

It is imp to read manufacturing packaging instruction carefully if available and always do not hesitate to consult pharmacist or physician for any information.

Written by: Healthplus24 team
Date: Mar24th,09

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