Medication dose reminders options

I’m new to using this feature as I had just got an Apple Watch 9 and saw it was on there. Figured it could be helpful as I have terrible memory. So I go to set it up, realise the most frequent reminder option is in days. I was looking for hours. So I selected the take when needed option thinking it would remind me.

it would be cool to have an option where you could tell it a frequency, example every 4 hours. And have it remind you, and once you log it, it will begin the timer for 4 hours again. Instead of making it start at a specific time. There isn’t an option available on there that works for me.

is there a way I can make this sort of reminder possible? Maybe even using the reminders app? I’m sorry if this all doesn’t make sense but I’m honestly just trying to remember to take my medications. Have the memory of a gold fish!

any advice welcome!