I love to see some info like this and want to share my experiences.
I'm a fan of small-molecule, well-tolerated, out-of-patent (cheap), widely available pharms like this in the class of "maintenance" and "enhancement" rather than "acute therapy" (although there is cross-over: i.e, have an acute headache? aspirin helps).
Some things in my list right now: acetylcysteine, aspirin, metformin
Besides aspirin, I don't take these regularly. And these days I take aspirin less and less, because I found I don't need it any more and I built up a healthy routine anyway.
In general I think eating right (lots of vegetables), good microbiome, plant medicine (for example turmeric (with milk and black pepper) black seed / nigella sativa as seeds or oil), and exercise are better than pharmaceuticals for general enhancement and maintenance of health--but there are some really good pharmaceuticals.
Everyone's body is different to some extent tho, and bodies change over time (for eg, gene expression changes over time), so what works for you might change over time.
This isn't medical advice, consult your doc, but here's other things I think a worth a shot (worked for me in the past) in limited doses:
piracetam - for building new brain cells, and increasing oxygen and decreasing blood viscosity
pentoxifylline - for de-aging your vascular system
fexofenadine - great for me for pollen allergies, and generalized severe inflammation (ie, say you had a really stressful thing)
doxycycline - good antibiotic in small dose but can have some weird side effects in some people, or if taken for long time, but strangely it also help with tissue repair.
fluorometholone - great in eye drop for itchy eyes, also instantly reduces brain inflammation / headache, and chills you out--for me at least--after dropping a couple drops in each eye--but use sparingly as it's a strong corticosteroid so you don't want to dampen the immune system in your sinuses etc as that will lead to infection!
In general I have the view that all pharams and most plant medicines are "toxins" (on some level, at some dose obviously, but in general too) in the sense that there's very few things which are just uniformly healthy in the class of drugs--yet nevertheless there are some wonder drugs like these that I think can be really enhancing to health if used right.
After a couple years taking aspirin at low dose regularly, I started noticing I no longer needed it. That coincided with me adopting a regular meditation/energy work/ some yoga practice.
Currently on my to-try list is: ashwagandha
Please exercise caution in your exploring -- some of what works for me might even be dangerous for you--everyone is different!! :) ;p xx ;p