One to two tabs at a time taken once in the morning and at night. It is tops as an anti estrogen, and it makes you look very hard and ripped. It helps with erections if suffering from low drive due to long cycles. It is also based on DHT so yes if you are gifted with male pattern baldness, this will hurry things up for you.
Lots of people think it is a worthless drug, those are guys who haven't tried it yet. My muscles get SOOO hard and defined on it, it's become my favorite substance. With other gear or alone I love it. At 5'8", 185lbs I have the mass I need, when I'm on just Proviron I'll look 10lbs heavier without gaining a pound. It's safe to take for long periods of time at 100mg a day, minimal side effects from what I have read, zero from what I have experienced.