Some.
Some pramipexole (mirapex, a dopamine agonist), tizanidine (muscle relaxer, related to clonidine), some clonidine itself. Gabapentin,
put on a couple of scopolamine transdermal patches, a few caps of oxycodone, a couple of cyclizine pills and some buscopan, for nausea as I threw up earlier and some chlormethiazole, couple of morphine shots. I rather fancy some more, but propionyl-H appeals more atm. There is another candidate molecule that I've been meaning to try. That being dibenzoyhatlmorphine. As well as the mixed 3,6-propionylbenzoyl morphine, and of course any route to to an asymmetric diester of morphine is going to result in a pair of positional isomers, 3-propionyl-6-benzoylmorphine, and 3-benzoyl-6-propionylmorphine. Both of which I have never tried, nor yet have I tried 3,6-dibenzoylmorphine.