For TB-500, the agency has said it has identified no human exposure data for drug products containing the peptide and also highlighted potential risks associated with aggregation and impurities
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Do not massage the injection site, as this can disperse the peptide too quickly or cause irritation
Bacteriostatic water's preservative (benzyl alcohol at 0.9%) prevents microbial growth but does not halt peptide degradation indefinitely
The pharmacokinetics of LY3437943 (retatrutide) support once-weekly administration due to an elimination half-life of approximately 6 days. Jastreboff AM et al., Nature Medicine, 2023 This extended half-life is made possible by attaching a fatty acid chain to the peptide, allowing it to bind to albumin a common protein in your blood that acts like a slow-release carrier
Worse on days when you eat particularly little