Peptide GradingThe gasping syndrome and benzyl alcohol poisoning
NEJM, 1982. Linked benzyl alcohol in flush solutions to fatal toxicity in premature newborns, which is why it isn't used in neonates.
View on PubMedKey benefits
- Preserved for multi-dose use
- Standard for reconstituting peptides
- Usable for 28 days after opening
Sterile Water for Injection containing benzyl alcohol as a preservative, used as a diluent for compatible injectable medications.
Typical dose
Not applicable; volume depends on the medication being diluted
Once or twice daily
Route
Subcutaneous
Often studied away from meals; timing varies by protocol.
Cycle
Not applicable
Typical duration
Storage
Store at 20–25°C; keep sealed.
Follow vendor guidance
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What the research reports
Benefits of Bacteriostatic Water
What bacteriostatic water is for. It's not a peptide; it's sterile water used to dissolve (reconstitute) peptides.
01
Preserved for multi-dose use
02
Standard for reconstituting peptides
03
Usable for 28 days after opening
What the evidence shows
Bacteriostatic water for injection is a standard, well-characterized pharmaceutical product (USP grade). Its preservative, benzyl alcohol, has been used in medicines for decades.
The key safety evidence concerns newborns, in whom benzyl alcohol caused a fatal 'gasping syndrome'.
Studies
Key studies on Bacteriostatic Water
Safety and regulatory position
Pharmaceutical diluent (USP)Bacteriostatic water for injection is an FDA-regulated pharmaceutical product. It must not be used in newborns because of benzyl alcohol toxicity, and it isn't used for spinal (intrathecal) injection. People allergic to benzyl alcohol should avoid it.
Some peptides are less stable in it than in plain sterile water, so check the peptide's own guidance. Always use a sealed, in-date vial from a pharmaceutical source.
Pairing
How Bacteriostatic Water pairs with other compounds
Peptides sensitive to preservatives
A few compounds are better reconstituted in sterile water without preservative. Follow the specific peptide's guidance.
FAQ
Frequently asked questions.
Listings on Pepgrade are educational and marketplace context. Follow local rules and vendor labeling (e.g. RUO).