Can quinine sulfate affect heart rhythm?

iatroX medicinesPublished 21 August 2026Reviewed 21 August 2026

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Yes. It can prolong the QT interval and aggravate conduction problems, particularly with cardiac disease, electrolyte disturbance or interacting medicines.

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UK GovernmentUK Government · Reputable Web

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Medicines quinine sulfateQuestion & answer

quinine sulfate · Medicine question

Can quinine sulfate affect heart rhythm?

iatroX medicinesPublished 21 August 2026Reviewed 21 August 2026

The answer

Answer

Yes. It can prolong the QT interval and aggravate conduction problems, particularly with cardiac disease, electrolyte disturbance or interacting medicines.

Sources for this answer

UK GovernmentUK Government · Reputable Web

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