I've been on adderall for 10 years and not once have I ever had to do a drug test... I'm curious where you live? At least in the US, drug testing isn't federally mandated for ADHD meds, it just depends on how much your psychiatrist trusts you basically. If you wanted to get back on meds so you only need to do a monthly phone call to renew your prescription (plus a normal follow up appointment every 3 months), I'd recommend finding a better psychiatrist.

but I'll concede that even just a monthly phone call is hard to keep up with, with ADHD. I most often forget until I'm about to run out so there have been many occasions that I have to go without meds for a few days...