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PSA: Verify your compounding pharmacy accreditation (PCAB/ACHC) — my results so far

AussieAnna Mon, Oct 20, 2025 at 10:56 AM 44 replies 1,544 viewsPage 5 of 9

Dr.ObesityLA

VIP Member

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Dec 2023

Los Angeles, CA

Oct 23, 2025 at 2:47 AM#21

Clinical perspective, offered as context rather than as advice.

503A vs 503B compounding pharmacies for compounded supply — this distinction matters enormously:

Feature	503A	503B
Regulation	State Board of Pharmacy	FDA-registered
Prescription	Required (patient-specific)	Can compound without patient Rx
Testing	Varies by state	cGMP required
Scale	Small batches	Larger production
Quality consistency	Variable	Generally higher

I strongly recommend 503B facilities. The FDA oversight and cGMP requirements mean more consistent product quality.

46 21zoe_NC, Dr.ObesityLA, NurseKim_ATL and 43 others

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Dr.PainCLE

Senior Member

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Mar 2024

Cleveland, OH

Oct 23, 2025 at 8:10 PM#22

Dr.ObesityLA said:
503A vs 503B compounding pharmacies for compounded supply — this distinction matters enormously: Feature 503A 503B Regulation State Board of Pharmacy…

This is my experience too, for whatever a second data point is worth.

45 20tane_welly, Dr.PathRoch, mona_PHX and 42 others

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tom_AK

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Jan 2026

Anchorage, AK

Oct 24, 2025 at 1:33 PM#23

Dr.ObesityLA said:
503A vs 503B compounding pharmacies for compounded supply — this distinction matters enormously: Feature 503A 503B Regulation State Board of Pharmacy…

I have been on both brand and compounded, and in the context of compounded supply, my experience has been equivalent with both. The key is finding a reliable 503B pharmacy with independent testing.

44 19tyler_CSCS, VanRx_Mike, steve_okc and 41 others

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Dr.PathRoch

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Jun 2024

Rochester, MN

Oct 25, 2025 at 6:57 AM#24

Dr.ObesityLA said:
503A vs 503B compounding pharmacies for compounded supply — this distinction matters enormously: Feature 503A 503B Regulation State Board of Pharmacy…

Regarding compounded supply compounding legality: compounding pharmacies can legally produce semaglutide and tirzepatide while these drugs remain on the FDA shortage list. If/when the shortage resolves, the legal landscape may change.

Stay informed. The FDA shortage list is updated regularly. Current status as of my last check: semaglutide partially resolved shortage, tirzepatide still in shortage. This directly impacts compounding availability.

43 18SaraMom3, Dr.MetabolicMD, RetaRick_CA and 40 others

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