the compounding thing finally clicked for me and I want to write it down
Posting this as a discussion rather than a claim: the compounding thing finally clicked for me and I want to write it down. Why "compounded" is not "generic", written out because the confusion is constant. A generic is an approved product demonstrated to be bioequivalent to a reference. A compounded preparation is…
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.
503A is patient-specific, 503B is outsourcing facility, they are not the same thing
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What did the intake actually ask you?
Compounded preparations are not approved products and carry no bioequivalence claim. That is a statement about regulatory category, not about quality.
Agreed. The 503A versus 503B distinction changes who is allowed to make what, and almost every confused thread here starts by ignoring it.