Has anyone been prescribed Effexor after complaining of being tired and lacking in energy? and experienced the following after Effexor?: A friend of mine was prescribed Effexor several years ago after complaining of being tired and lacking in energy and the dosage was increased by his doctor and is now unable to get off the tablets as suffers from suicidal thoughts and it has been affecting his ability to ejaculate during sexual intercourse and takes quite long time to ejaculate even when masturbates?? Help??