check out my thoughts on anadrol in other threads I've posted.
Oxymetholone has too many side effects for my taste. It's potent, but very hazardous for your health. It doesn't only have the regular steroid sides, but it's also hepatoxic. Some researchers have also linked it to tumors, so it definately wouldn't be on my list of products to use. Just to add, I've had clients experience a myriad of other sides from oxymetholone, like nausea and insomnia.
Thus, I tend to recommend my clients stay away from it.
If you want to use something harsh on your system but effective, go with Tren.