isoniazid + rifampicin · Medicine question

How soon after oral administration does the isoniazid component of Rifinah (isoniazid + rifampicin) reach peak blood levels?

Name: How soon after oral administration does the isoniazid component of Rifinah (isoniazid + rifampicin) reach peak blood levels?
Published: 2026-11-08T13:50:43.725Z

iatroX medicinesPublished 8 November 2026

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The isoniazid component of Rifinah reaches peak blood levels within 1–2 hours after oral administration.

Sources for this answer

Rifinah 150mg/100mg TabletsSANOFI · emc · SmPC §5.2 Pharmacokinetic properties · Version 27Document updated 10 June 2026

Sources checked 8 November 2026

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