I’d find this useful as well, though for a different reason: to see if there are correlations between sympt9ms and how long ago I took a particular med. People can metabolize meds at different speeds so it can be hard to know when some meds’ effects wear off. For example, someone with ADHD might want to track how their focus correlates to how long ago they took their meds to see if worsened focus at a specific time might be due to the effect of their med wearing off. Or someone tracking allergy meds’ effective duration.

By the way Max, for your use case, have you tried timer caps? They’re medicine bottles with timers on the lid that start a countdown whenever you place the lid back on the bottle after opening it. I use them for ALL my meds as it’s the only way I can reliably remember when I last took stuff.