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c/compounding·posted 1 year ago by u/elin_ferrari

how much of what we believe about API source actually comes from telehealth threads

PSA Receipts ×8 Long Haul ×3 Well Actually ×1

how much of what we believe about API source actually comes from telehealth threads. I am not trying to be the "source?" guy. I would just like a source.

Concentration on the compounded vial was different from what I had been using and I nearly did the arithmetic on autopilot.

Asked for the beyond-use date basis and got a real answer with a stability reference attached. Not universal, apparently.

Switched between two compounded preparations and the concentration on the label was different. Redid the arithmetic on paper before drawing anything.

If two or three other people have done the same thing we might actually learn something. Alone it is an anecdote.

4,223 up / 444 down90% upvoted35 commentsid 1mkz5319 Apr 2025

35 comments

16 in this archive, depth 4

best — the order this archive was captured in

u/ahmed_fonseca723 points·1 year ago

Compounded preparations are not approved products and carry no bioequivalence claim. That is a statement about regulatory category, not about quality.

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u/lipid_panel_larrybloodwork453 points·1 year ago

This. Compounded preparations carry no equivalence claim, and treating them as generics is a category error people make constantly.

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u/lift_heavy_thingsresistance training409 points·1 year ago

Asked for potency testing on the finished preparation. They had it. I had assumed they would not.

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u/usp_appendixcompendial340 points·1 year ago

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.

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u/prior_auth_painMOD196 points·1 year ago

Reminder that nothing here is medical advice and this board cannot tell you which arrangement to choose.

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u/camila_sandvik151 points·1 year ago

the shortage list is the whole legal hinge and people skip it

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u/step_count_stan49 points·1 year ago

A beyond-use date derived from published stability data means something different from one assigned by default rule. Asking which is a fair question and the answer is usually available.

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u/honest_syringe_2025158 points·1 year ago

503A or 503B — do you know which?

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u/gallbladder_gary125 points·1 year ago

Yes. The shortage list is the legal hinge for the whole arrangement and its status is public.

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u/kian_ferreira65 points·1 year ago

What concentration is on the label, and does it match what you were expecting?

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[deleted]44 points·1 year ago

[deleted]

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u/ignacio_vanhecke29 points·1 year ago

Agreed on potency testing of the finished preparation. That is a different question from the purity of the starting material.

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u/elin_ferrariOP0 points·1 year ago

Was there potency testing on the finished preparation, or only on the starting material?

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u/discount_math_dm1 point·1 year ago

Correction: patient-specific refers to the prescription, not to a bespoke formulation. Common misreading and it changes the argument.

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u/amara_kuipers1 point·1 year ago

a telehealth intake that asks nothing has told you what it is

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u/hydration_hank0 points·1 year ago

What is the beyond-use date and what is it based on?

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About c/compounding

Compounded GLP-1s as a supply route: the 503A/503B distinction, the shortage-list mechanics that made compounding legal and then didn't, state board rules, telehealth prescriber models, and what a compounding pharmacy will and will not tell you about its API source.

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