I once had a discussion with my POIS doctor about nitric oxide, POIS, vessel walls, seminal vesicles, smooth muscles, vascular tone and premature ejaculation and among many things he considered to be involved in POIS he also was thinking about how nitric oxide-donating drugs could be helpfull in POIS patients. He gave me this article:
Effects of various nitric oxide-donating drugs on adrenergic tension of human seminal vesicles in vitro.I come up with this now because I have tried a selective beta1 blocker (only once), metoprolol 25 mg, a month ago for blood pooling and it did seem to do something with the area where my genitourinary system is located, like increasing blood flow and/or altered tension. So I was thinking whether POIS had something to do with tension and/or an impaired blood flow/supply to the genitourinary system, thus the above conversation came to mind.