Informational only — Not medical advice. Always consult a licensed healthcare provider.

Community data Updated 2 days ago

More from Requin

Other strengths and forms by Rephco Pharmaceuticals Ltd.

Indications & Uses

Indication information is not available for this brand yet.

Pharmacology

Quinine is believed to interfere with protein metabolism in malarial parasites, and it also inhibits their nucleic acid synthesis. It is a highly active blood schizonticide, which means it suppresses the asexual cycle of development of the parasites inside the erythrocytes. Quinine works both as a suppressive drug and in the overt clinical attack of malaria.

Dosage Reference

Reference Information Only

Dosages shown are general references from official sources. Always consult your doctor or pharmacist for personalized dosing.

Detailed dosing reference is not available yet. Please follow your prescription and consult your pharmacist.

Side Effects

Quinine Sulfate can cause cinchonism, which includes tinnitus, headache, nausea and visual disturbances. Blood disorders and skin reactions may also occur.

Cautions & Contraindications

Warnings & Precautions

Take extra care with Quinine Sulfate in people who have severe heart disease, myasthenia gravis or diabetes mellitus. When it is given as an IV injection, give it slowly. Using Mefloquine together with Quin sulphate may increase the chance of side effects.

Pregnancy & Breastfeeding

Quinine Sulfate isn't necessarily ruled out in pregnancy. At the usual therapeutic dose it is considered safe for pregnant women. Only a very small amount passes into breast milk, and that amount is not enough to rule out its use while breastfeeding.

⚠️ Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

Storage

Taking Mefloquine together with Quin sulphate may raise the chance of side effects.

Common questions about Requin 300 mg

What is Requin 300 mg Injection?

Requin 300 mg Injection is a medicine that contains Quinine Sulfate. It is made by Rephco Pharmaceuticals Ltd. It belongs to the Anti-malarial drugs group of medicines.

What are the side effects of Requin?

Quinine Sulfate can cause cinchonism, which includes tinnitus, headache, nausea and visual disturbances. Blood disorders and skin reactions may also occur.

Can I take Requin during pregnancy or while breastfeeding?

Quinine Sulfate isn't necessarily ruled out in pregnancy. At the usual therapeutic dose it is considered safe for pregnant women. Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

How should I store Requin?

Taking Mefloquine together with Quin sulphate may raise the chance of side effects.

Do I need a prescription for Requin?

Requin is a prescription (Rx) medicine. Take it as your doctor advises.

Last updated: 11 Nov 2026