Actual Medicinal Product (AMP) Hiprex 1g tablets (Viatris UK Healthcare Ltd)

Stability Information

(Some stability information inherited from generic)

Stability: Lack of data and/or stability concerns exist. MCA use may be acceptable but is likely to be off-label and require mitigation measures. Keep medicines in MCAs for the shortest time necessary. Generally, up to 5 weeks maximum unless otherwise specified, or up to 8 weeks if the MCA is airtight (sealed). Consider the risk of potency loss or dose variability and monitor for changes in efficacy or adverse effects after MCA initiation.
Notes: Light sensitive medicine. Store in light resistant container.   Moisture sensitive medicine. Store in airtight (sealed) MCA  Manufacturer recommends storing in original container.
No stability data in MCAs available.
Provenance: This recommendation is based on the products Hiprex 1g tablets (Viatris) and methenamine hippurate 1g tablets (ADVANZ Pharma).
Generic: Methenamine
Formulation: Methenamine hippurate 1g tablets