The short version: independent testing, conservative titration, sterile-ish technique, a written record and a clinician who knows.
Material risk is reduced by independent testing: identity, purity and quantified content on your own lot, before committing to a larger order. That is the only step that addresses what is actually in the vial.
Pharmacological risk is reduced by starting below the lowest licensed step and escalating more slowly than the label schedule. Time is the cheapest resource in this whole calculation.
Withheld information is a recognised barrier to effective clinical assessment, and disclosure changes management in a substantial fraction of cases.
Keep a written log with lot numbers. It is what a professional can actually use.
edited 2 Oct 2024 by h_villanueva — removed a claim I could not source
8Same experience here, different supplier. – tyndall_haze 2 months ago add a comment