ferrous sulfate · Medicine question

Which preservative in Ironorm Drops containing ferrous sulfate can cause allergic reactions and bronchospasm?

Name: Which preservative in Ironorm Drops containing ferrous sulfate can cause allergic reactions and bronchospasm?
Published: 2026-11-08T01:49:26.471Z

iatroX medicinesPublished 8 November 2026

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Answer

Metabisulfite, a preservative in Ironorm Drops containing ferrous sulfate, can cause allergic reactions and bronchospasm in susceptible individuals.

Sources for this answer

Ironorm DropsWallace Manufacturing Chemists Ltd · emc · SmPC §4.8 Undesirable effects · Version 1Document updated 6 January 2017

Sources checked 8 November 2026

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