I am moving from a compounded vial to a real pen. What do I bring?

Answer

Your concentration, your draw volume in units, the resulting milligrams, your last dose date and what side effects you had. Not just the unit count.

In more detail

A prescriber deciding where to restart needs the amount, not the volume, and they need to know how the amount was tolerated. Photograph the vial and its label before it goes, write down the date of the last dose, and convert your units into milligrams so the history you hand over is a number in the same language as the pen. Where you actually restart is their decision, and on the same molecule people are often not sent back to the beginning.

Source

General clinical transition practice for compounded to labeled products.

Educational use only, never medical advice. No doses.