This feature was in New Leaf but was removed after the Welcome Amiibo update (the wiki says it was due to a bug, tho I can't remember nintendo saying anything about it) Is it in New Horizons?
Only one dose of medicine? I guess that makes sense to get them back out and interacting, but I sort of enjoyed tending to my sick villagers for several days. Oh, well. I'm glad they brought it back, at least.