[Discussion] we are measuring API source at the wrong time and calling it noise
Posting this as a discussion rather than a claim: we are measuring API source at the wrong time and calling it noise.
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 made for a patient or, in the case of an outsourcing facility, under a different regulatory route entirely. It carries no equivalence claim and it is not required to demonstrate one.
That is not a quality judgement. Plenty of compounded preparations are made carefully in facilities with real testing programmes. It is a statement about what has and has not been established, and the difference matters when people assume the two are interchangeable.
The five questions worth asking before you commit to any compounded arrangement.
Which facility, by name. Whether it is a 503A pharmacy or a 503B outsourcing facility. What concentration is on the label. What the beyond-use date is based on. Whether there is potency testing on the finished preparation rather than only on the starting material.
All five are answerable in one email and the pattern of what comes back is more informative than any of the individual answers. An organisation with a quality system finds these questions ordinary.
Asked for potency testing on the finished preparation. They had it. I had assumed they would not.
Screenshot none of this. Read the whole thread, including the parts where I am told I am wrong.
best — the order this archive was captured in
On concentration, which is where I see people actually get hurt.
A compounded vial can be filled at a different concentration from the branded product you were previously using. If you carry over your old arithmetic — same number of units, different mg/mL — you draw a different amount and may not notice for weeks.
Read the label every time you switch. Redo the arithmetic on paper. Write the concentration on the vial. It is the same habit c/reconstitution keeps preaching and this is the case where it actually bites.
Push back: "compounded is fine because a pharmacy made it" skips every question this board exists to ask.
Nothing in this thread is medical advice, and the choice between arrangements is one for you and a prescriber who knows your history.
the pharmacy and the prescriber are two separate questions
Left up. It describes an arrangement with specifics and it is honest about the jurisdiction.