[Discussion] we are measuring 503B at the wrong time and calling it noise
Posting this as a discussion rather than a claim: we are measuring 503B at the wrong time and calling it noise. Salt form matters for mass: a preparation specified as one salt and dosed as the free base gives you a different amount of peptide for the same number on the label. A beyond-use date derived from published…
503A is patient-specific, 503B is outsourcing facility, they are not the same thing
Nothing in this thread is medical advice, and the choice between arrangements is one for you and a prescriber who knows your history.
That is not what patient-specific means. It refers to the prescription, not to a customisation of the formula.
Right, and the concentration genuinely can differ from the branded product, which breaks people’s arithmetic.
if a clinic will not name the facility, that is your answer
Correction: patient-specific refers to the prescription, not to a bespoke formulation. Common misreading and it changes the argument.
ask what the beyond-use date is based on
Yes — asking which facility, by name, is the single most useful question and most clinics will answer it.