you want a simple answer?
if thats all youre on...... odds are you wont notice any.
1. why are you on proviron?
2. what else are you taking?
3. are you suffering libido issues for any particular reason?
4. what made you consider proviron for libido issues?
5. are you on juice? and if so what are you taking?
6. whats your age?
7. are you having actual libido issues or is it really E.Disfunction? because there is a difference, even though we used the word libido as a shorter term for E.D. most often here. but they are different. you can have a shit load of libido but suffer from E.Disfunction.