Dr.RenalNash said:They are two different exemptions from the same federal requirements and they buy different things.
Agreed, though "tolerable" needs defining. A dose you tolerate by eating almost nothing is not tolerated, it is being paid for somewhere else — usually in lean mass, sometimes in adherence three months later.
claudia_zurich said:Albumin binding above 99% is the whole reason weekly dosing works, and it is also why the trough matters more than the peak.
This is exactly what I could not find anywhere else.
Dr.RenalNash said:They are two different exemptions from the same federal requirements and they buy different things.
I read this differently from Dr.RenalNash, on substance rather than tone. The trial means are being read too generously in this thread. STEP populations were selected, supported, and titrated by protocol, and the real-world curves are consistently a few points worse. That difference is not noise, it is what happens when you remove the study infrastructure.
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Browse GL BiochemAdding the numbers, since they settle part of this. Two things anyone can check: a state licence number for a 503A, and an FDA outsourcing-facility registration for a 503B. Both are publicly searchable, and a pharmacy unwilling to give you either has answered the question.
Moderator note: reminder that nothing in this thread is medical advice, and that clinical claims need a source. Thread quality here is what the rules are for. Keep it up.