I've been taking a (slightly frowned upon) herb to regrow my heart valves. It seems to be working.
I no longer feel like I'll be dying soon.
Perhaps you should seek out the root cause of wtf is you're problem, and fix it? Instead of being dependent on a drug to survive. Something you cannot easily grow yourself if you had to...
Ofc, herbs are not fast and like most drugs, they only last 4 hours.
I'm not saying quit the shit. I'm saying, try to fix the root problem - if possible.
If you are in Germany they can offer medical herbology if you ask around.