Has anyone dealt with fda warning letters to compounding pharmacies?

Dr.NateNeph said:

If you are comparing against somebody else’s result, check that you are comparing the same measurement taken the same way.

Agreed, and the size of the effect matters as much as its existence. Something real and small gets treated here as though it were real and decisive.

Dr.NateNeph said:

If you are comparing against somebody else’s result, check that you are comparing the same measurement taken the same way.

This answered a question I did not know how to ask.

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

sarah.morrison said:

Agreed, and the size of the effect matters as much as its existence.

Mine went the same way, slower.

sarah.morrison said:

Agreed, and the size of the effect matters as much as its existence.

Coming at sarah.morrison’s question from a different direction. Whatever the answer turns out to be, the method for getting there is the same: state the assumption, do the arithmetic in public, and invite the correction. That is slower than asserting, and it is the only version that survives being wrong.