Both times I noticed this were when I recycled a corpse for a sleeve. Operations to pre-install bionics used up glitterworld medicine, and the Health Overview tab was missing the dropdowns to allow it to change. Some combination of removing the sleeve from the sleeve casket and putting it back in re-adds those dropdowns, showing that glitterworld medicine is selected, and allowing the medicine type to be changed.

It's worth noting that none of my default settings are set to use glitterworld medicine - Colonists and friendlies get regular medicine, and everyone else gets herbal. I'm not sure if it's pulling from when the corpse was in its own colony or what, but it was an expensive few surgeries before I noticed.