It is set by how many times the container has been entered, which is why cold storage does not move it
Sikiric P, Seiwerth S, Rucman R, Turkovic B, Rokotov DS, Brcic L, Sever M, Klicek R, Radic B, Drmic D, Ilic S, Kolenc D, Aralica G, Safic H, Suran J, Rak D, Dzidic S, Vrcic H, Sebecic B
The 28-Day Rule Even though bacteriostatic water contains a preservative, most clinical guidelines suggest discarding a reconstituted vial after 28 days
Therapeutic Goods Administration
In this regard, the following guidelines should be kept in mind: Ideal Storage Temperature for Longer Shelf-Life Once the vial containing bacteriostatic water for injection is opened, it is recommended to keep it stored at controlled room temperature for up to 28 days