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Medicines ritonavirQuestion & answer

ritonavir · Medicine question

What effect can ritonavir have on the heart's PR interval?

iatroX medicinesPublished 8 November 2026

The answer

Answer

Ritonavir can cause modest, asymptomatic prolongation of the PR interval, as demonstrated in some healthy adults.

Sources for this answer

Norvir 100 mg film-coated tabletsAbbVie Ltd · emc · SmPC §4.4 Special warnings and precautions for use · Version 38Document updated 10 December 2025

Sources checked 8 November 2026

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ritonavir

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