Previous studies have revealed that tamsulosin is effective in improving lower urinary tract symptoms

(LUTS) and erectile functioning but has some inhibitory effects on ejaculation, including decreased ejaculatory volume.

Can tamsulosin cause ejaculation problems?

Abnormal ejaculation is a typical side effect of tamsulosin. In a long-term, open-label, phase III extension study of 0.4 mg tamsulosin once daily (OD), 30% of patients experienced ejaculatory dysfunction (EjD).

What is abnormal ejaculation from tamsulosin?

Abnormal ejaculation is probably related to α₁-blockade by tamsulosin at the bladder neck, and in prostatic smooth muscle, the seminal vesicles and the vas deferens. ⁵. The lack of seminal fluid emission may be caused by impaired seminal vesicle contraction and/or seminal fluid production.