Oh, I understand where you are at with multiple meds. My suggestion would be to contact your doctors office and let them know you have concerns about your medications. Ask if the doctor or his nurse could call you back ASAP if you are not connected to one of them right away. Of course if you have more questions once you are connected to them, ask away!
The articles you are reading, do they state what "normal conditions" means in reference to their research? Do you fall in to that "normal conditions" ?
Another thing I found out via asking questions such as you are is that many medications have dual purpose, might be from the same "family" but there is that little bit of a difference that might give you a better boost. Example from my personal experience and my lung problems is azithromycin ( Z-pack, antibiotic). It is prescribed for my lungs 250mg once a day continuous. Hmmm, yes I had to ask why? It was then explained to me via doctor that the low dose helps with inflammation with in the lungs. I know right. Well then off to research such a thing. At first nothing showed in reference to the lungs, until I changed my search perimeters, then I found it.
Again, with that it's always best to go back and ask those that prescribed the meds, the answer could be interesting to say the least.
Good Luck!