Proviron is one awesome compound when used properly, so it is well worth being considered for use. There are three major things to keep in mind when taking it:
1. On cycle it will act as a turbo-charger for the other compounds in the stack, as it will reduce the amounts of SHBG, hence increasing the levels of free testosterone. Also, it will increase the levels of DHT, promoting more active libido and a certain level of leanness, with more vascularity. The good dosage is 50 mgs per day.
2. In spite of being extremely safe and not liver toxic, proviron should not be used on PCT, as it is slightly suppressive, so it will not be contributing to recovery on PCT.
3. It can be used solo, but I would not expect really great and visible results from it. When I used it solo, felt great, and the libido was amazing. Yet again, 50 mgs per day is the sweetspot. After running it for 8-12 weeks, run a 4 week mini-PCT with a potent natural testosterone booster, such as N2Generate ES.