Anxiety meds and orgasms?

Does anyone else who is on anxiety medications have difficulty orgasming? I have been sexually active for 4 years and have been on anxiety meds since before then. I love having sex and totally enjoy myself, but can never seem to make it past the brink to orgasm. I'm 22 and have had a serious boyfriend for the past 3 years. Anyone else in a similar situation or has some insight?