sodium phenylbutyrate · Medicine question

What is the shelf life of Pheburane 350 mg/mL oral solution (sodium phenylbutyrate) before and after first opening?

Name: What is the shelf life of Pheburane 350 mg/mL oral solution (sodium phenylbutyrate) before and after first opening?
Published: 2026-11-08T14:29:40.228Z

iatroX medicinesPublished 8 November 2026

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Answer

Pheburane 350 mg/mL oral solution (sodium phenylbutyrate) has a shelf life of 3 years in an unopened bottle and 4 weeks after first opening.

Sources for this answer

PHEBURANE 350 mg/mL oral solutionEurocept International bv · emc · SmPC §6.3 Shelf life · Version 1Document updated 4 June 2025

Sources checked 8 November 2026

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