A few days ago, the Apothecary station could be used to make intermediate cure. That either is not possible anymore, or there is some non-obvious requirement I just do not see. I have a dupe learn Duplicant Care, but that did nothing. Reloading and tearing down and rebuilding the Apothecary did nothing either.
Update: Seems the recipe is not displayed before you have Phosporite in your possession. That is at least inconsistent and non-obvious and may well be a bug.
Steps to Reproduce
Load attached save, try to make intermediate cure to get poor Nisbet some treatment. Find that this does not seem to be possible.
This issue has been fixed in either a future version or updated in a previous version.