pete_nash said:

I have been on both brand and compounded, and in the context of compounded supply, my experience has been equivalent with both.

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

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

denise_HTX said:

Worth adding the genuine exception, because it is real and narrow: a change made for an identified patient where the prescriber determines it produces…

That reframing is the part I needed. I will report back once I have actually tried it.

pete_nash said:

I have been on both brand and compounded, and in the context of compounded supply, my experience has been equivalent with both.

Price comparison for compounded supply across sources I've used:

I use the 503B option — best balance of quality, cost, and legality. The brand price is insane but insurance can help if you qualify.

mark_tokyo said:

My pharmacy stopped supplying with three weeks notice and a letter that explained nothing, so I went and read the statute.

Compounded has been just as effective for me. If compounded supply is the concern, the COA from my 503B pharmacy shows 99.1% purity. Verified by Janoshik.

Moderator note: the sourcing question belongs in the vendor section and has been split out. Carry on.