When I was younger I ejaculated fast and now not at all. I take coumadin, Lexapro and levitra (vardenafil). What meds could be the problem?

Lexapro (escitalopram) Lexapro, (escitalopram) like other antidepressants called ssri's, can cause difficulty achieving orgasm. In some people this happens sometimes, in others it happens every time they have sexual activity. If this side effect is too troubling, speak with your physician about options, as there are many. Hope this answer helps.
Lexapro (escitalopram) Ssris are notorious for having abnormal ejaculation or decreased libido as side effects!