Depends on how weak/depressed I am. I have depression, that is why I would rather see a psychiatrist for my condition.

Whenever I need something that doesn't require a visit to the doctor

I'm a healthcare worker. I always get meds from my work place

Mostly when I run out of certain medication

not often, would usually visit the doctor

Whenever a medication runs out

It is very much need based

Monthly based on my stock

Once in a blue moon..

Hayfever medication