That’s the problem with any drug you take, it inevitably causes the body to go out of balance resulting in various side effects. I have the same problem and put up a similar post the other day. Essentially people said reduce the dose of dutas, but at the same time I don’t want to lose my hair.
As Warrior say’s above a solution is taking a sexual aid, I personally use Kamagra or Sildenafil powder which works out a lot cheaper than the magic blue pill, but does exactly the same. There are also various smart drugs out on the market which have shown to increase ‘male libido’ among other things, it’s called Cabaser, but there are a number of options. Depends on the specific problem.