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Composition for LARQUIN

Chloroquine(500 mg)

food interaction for LARQUIN

alcohol interaction for LARQUIN

pregnancy interaction for LARQUIN

lactation interaction for LARQUIN

It is better to take Larquin 500mg tablet with food.
Interaction with alcohol is unknown. Please consult your doctor.
Larquin 500mg tablet may be unsafe to use during pregnancy.
Either animal studies have shown adverse effect on fetus and there are no human studies or studies in human and animals are not available. It should be given only if potential benefits justifies risk to the fetus. Please consult your doctor.
Unknown. Human and animal studies are not available. Please consult your doctor.


Chloroquine(500 mg)


Larquin 500mg tablet is used for the treatment and prevention of malaria. It may be used to treat amebiasis.

How it works

Larquin 500mg tablet belongs to group of medicines called 4-aminoquinoline antimalarial. It acts by interfering with the growth of parasites in the red blood cells of the human body. 

Common side effects

Abdominal pain, Mood changes, Vomiting, Dizziness, Muscle weakness, Loss of appetite, Hair loss, Itching, Hearing disorder, Blurred vision, Visual disturbance, Headache, Bloating, Altered heart rate, Photopsia (presence of perceived flashes of light), Eye disorder, Drowsiness, Ringing in ear, Rash


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Expert advice for LARQUIN

  • Take this medication with meals or milk to decrease the risk of stomach upset.
  • This medication may cause blurred vision and may impair your thinking or reactions. Be careful while  driving doing  anything that requires you to be alert and able to see clearly.
  • Do not start or continue the chloroquine tablets, If you are allergic (hypersensitive) to chloroquine or any of the other ingredients of chloroquine tablet.
  • Do not start or continue the chloroquine tablets, if  you are pregnant or trying to become pregnant.
  • Check the blood glucose levels during the treatment with chloroquine.
  • Consult your doctor if you experience rash with eosinophilia and systemic symptoms (DRESS) syndrome after taking chloroquine.
  • Do not use long-term high dosage therapy unless no other drug is available. 
  • Eye examination prior to and at 3–6 monthly intervals during use is required if patients are receiving chloroquine at continuous high doses for longer duration.
  • Full blood counts should be carried out regularly. Caution is required if drugs which induce blood disorders are used concurrently.

Frequently asked questions for LARQUIN


Q. Is chloroquine a quinine/antibiotic/ contain sulpha/ is still used?
No, it is 4-aminoquinoline and not a quinine/antibiotic. It does not contain sulfa. It is used for the treatment of malaria (due to P. vivax, P.malariae, P. ovale, and susceptible strains of P. falciparum), prevention and suppression of malaria, amoebic hepatitis and abscess, discoid and systemic lupus erythematosus, rheumatoid arthritis.
Q. Is chloroquine available over the counter?
Yes, it is available over the counter.
Q. Is chloroquine safe in G6PD deficiency?
No, as there may be a risk of hemolysis in patients with G6PD deficiency. Always consult your doctor regarding its use.
Q. Is chloroquine banned in Nigeria?
Yes, it is banned in Nigeria.
Q. What is Lariago tablet/Lariago syrup/Lariago-DS/ Resochin used for?
These are the trade names of products containing the drug chloroquine and are used in the treatment of malaria.
Q. Does chloroquine affect birth control/ affect the birth control pill/contraceptive pill/ menstrual cycle?
No, it does not affect birth control/ affect birth control pill/contraceptive pill/ menstrual cycle. Patients should follow the advice of the doctor regarding its use.
Q. Does chloroquine cause nightmares/insomnia?
Chloroquine causing these side effects is rare or uncommon. Always consult your doctor for the change of dose regimen or an alternative drug of choice that may strictly be required.


Content on this page was last updated on 12 December, 2014, by Dr. Varun Gupta (MD Pharmacology)