Norvasc, 10 mg. at first then 5 mg., for me was an experience like amphetamines. I couldn't sit still and was running around dawn til dusk.
Unfortunaltely I can't judge it's effect on sexual prowess because I was prescribed it with 50 mg. atenolol...and we all know what THAT does for WOOD...think toothpicks or sawdust

!
A month of excited energy followed by nights of severe insomnia left me feeling like the WALKING DEAD!
BP control was fairly poor. I stopped both, got my STENT and went backn on the thiazide-ARB.