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For most conditions, a patient can collect a months worth of pills and manage their own dosage schedule within a safe range, often a week or more in advance of needing them

Unopened vials remain stable at controlled room temperature (2025C), but once the sterile seal is broken, benzyl alcohol's preservative capacity depends entirely on cold storage to prevent bacterial colonization and maintain pH stability

Bacterial-growth risk is why bacteriostatic water is preferred for multi-dose vials

For example, many powdered antibiotics, hormones (like peptides), or vaccines require a diluent to prepare a dose

Kraus et al., Nature (2014), on NNMT and diet-induced obesity