I am a 27 year old male and I have been taking Effexor 37.5mg for about a week and notice that I have not been able to ejaculate. Is this normal and how long will it last? Taking this med for anxiety, gonna stop if this persists. Please guys that have or are taking this med provide some input.

Not to provide too much information but I still have the sexual attraction towards my wife and am able to achieve and maintain an erection, just cannot ejaculate. And if you answer, male or female doesn't matter... just looking for some answers, please don't put a simple "yes" or "no" please elaborate on the basis of your knowledge or experience. Thank you in advance.