@whitequark Fair. One of our partners has essential tremors (genetic) that are likely to worsen with age, so we've had a few conversations and looks around.

The first-line treatments seem to be beta blockers, but they all have their own side-effect profiles to worry about.

Apart from prescription medication, plain old ethanol, at low doses, seems to give quite good results according to some studies. This has worked well enough for our cases, as our partner's tremors are not severe enough to require treatment unless they're explicitly trying to paint models or do other fine work. Generally 5mL ethanol/80kg (so ~1 standard drink, ish) has been enough for our cases, but YMMV. And as always, ethanol itself has a plethora of side effects and potential harm it could cause, or may be excluded by other medication.