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Chloroquine: uses, side effects & brands
Chloroquine is an older antimalarial still used for certain malaria and amoebic infections. It belongs to the Antiparasitic / anthelmintic group. These treat worm infestations and parasitic infections.
Drug type — dosing is set by your doctor
| Measure | Range |
|---|---|
| Drug class | Antiparasitic / anthelmintic |
| Type | Prescription |
| Dose | Individual — ask your doctor or pharmacist |
What it is used for
- Malaria caused by sensitive parasites, such as vivax malaria
- Amoebic liver abscess (with other medicines)
- Some autoimmune conditions (less often now)
Common brand names
- India: Lariago, Emquin
- Worldwide: Aralen
Common side effects
- Nausea or stomach upset
- Headache
- Itching, especially in people of African descent
- Blurred vision
Before taking it — precautions
- Long-term use needs eye checks for retina damage
- Tell your doctor about heart rhythm problems, epilepsy, psoriasis or liver disease
- Keep out of reach of children; overdose can be fatal
When to see a doctor urgently
- Changes in vision (stop and see a doctor)
- Fainting or irregular heartbeat (urgent)
- Seizures or severe muscle weakness (urgent)
Frequently asked questions
Does chloroquine work for all malaria?
No. Many falciparum malaria parasites are resistant, so doctors choose treatment based on the type of malaria.
Why does chloroquine cause itching?
Itching is a known side effect, more common in some people. Tell your doctor if it is severe.
Is it the same as hydroxychloroquine?
They are related, but hydroxychloroquine is more often used for autoimmune disease and is generally better tolerated long-term.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.