You can shoot limited +P with no problem. I don't have a Taurus 9, but my Kel Tec is rated for limited use +P and that's what I do with it. I've only fired enough through it to varify reliability and accuracy, about 300 rounds in its lifetime. But, I carry +P.
It MIGHT be corrosive primed. If you can find some, get some military solvent to scrub the bore with. The stuff stinks to high heaven, but it's made to clean bores after firing corrosive ammo. If nothing else, scrub the heck out of it with Hoppes. I used to shoot a lot of 8x57 surplus ammo in my Mauser and my Hakim battle rifle. I always scrubbed it with military bore cleaner I got at an army/navy surplus store. It has kept those guns in good shape. I don't really like shooting that corrosive stuff, though, and would avoid that ammo if it is indeed corrosive. If it's corrosive, it's likely berdan primed and I wouldn't want the stuff anyway since you can't easily reload berdan brass. That's not a real consideration unless you reload, though.
I'm quite cautious about corrosivity in former eastern bloc surplus stuff. Not sure the vintage or origin of this cheap ammo. Just don't let the gun sit too long before thoroughly scrubbing the bore if you don't know if it's corrosive or not. Treat it like a black powder revolver and scrub the heck out of it.
