no libido

I need a second opinion , my doctor has told me I have no sex drive and said he could treat it. He gave me Viagra but when I read the info it says it does not treat libido problems. went back to doc he gave me cialis (tadalafil) which is Viagra with different name.
A friend told that there are lots tablets on the market that will but cant recall any names.
On the net I found that horny goat weed and libibus do .

Doctor said go home and not think about it and to think of other stuff and it will come back but I don’t know I the marrage will survive as it is putting a huge strain on it.

Premature ejaculation is a big thing to now,I last about 2-3 minutes if that . all I can put that down to that when I was good we had sex 2-3 times a week but now its 2 times every 3 weeks. So I am not used to it .

I need an answer soon because I cant bear to think of life without Michele.