So I was watching a commercial during the Boston Red Sox game tonight (likely going to sweep the World Series, unfortunately for our Rockies’ fans) for Flomax. Flomax is used to treat symptoms such as — having to urinate often, urinating urgently, weak urine stream and frequently waking up at night to urinate — you could have BPH (also known as enlarged prostate). This is not a serious issue for most men, even as they age. They simply pee a little more often. Big deal.
But one of the side effects of Flomax during the commercial caught my ear — a “decrease in semen.” Huh? I don’t want any medication I take to decrease my semen production, that’s just whack!
Did researchers measure semen output in order to ensure a medication doesn’t interfere with the all-important semen creation?
Indeed, a search on MEDLINE revealed that researchers have examined semen output related to this medication. But in our search for such studies (ala “tamsulosin and semen”) produced a paltry 4 results, only one of which (Hisaue et. al., 2006) was directly relevant.
So we’re left wondering — how did the makers of Flomax discover that their medication directly impacts semen production (since the only way to objectively measure such production is generally through, well, actual production of semen produced via the penis via sexual stimulation)? If anyone knows, please comment below.
References:
Hisasue S, Furuya R, Itoh N, Kobayashi K, Furuya S, Tsukamoto T. (2006). Ejaculatory disorder caused by alpha-1 adrenoceptor antagonists is not retrograde ejaculation but a loss of seminal emission. Int J Urol., 13(10):1311-6.
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14 Comments to
“A Decrease in Semen from Flomax?”
I’ve heard that there was some medication (maybe an SSRI) that had guys worried. They noticed that while their semen used to be whitish it was looking clearish after they started on the medication. So… Samples were taken and it was found that the medication did indeed seem to decrease the amount of sperm in their semen. I think the idea was that the sperm was somehow coming out with their urine… So it wasn’t a production problem… But I’m not sure on this latter bit…
I realize it has been a couple months since you posted this, but I hoped I could help you. Trust me, there is a reason I was searching for the exact studies behind this, because this particular symptom is happening to me. As funny as it may sound, we know how at “that moment”, we men like to look and feel “strong”…..well, imagine my embarassment when I am expecting pooring rain, and only get some drizzle……I am just very lucky to have a fiancee who is so undersanding. It has reallt had an effect on my confidence. Needless to say I am done with Flomax. I just hope the old me “comes” back soon!
(pun intended)
Flomax stopped my semen ejaculation completely. I found out after I had a ‘wet’ dream. Only this time, it was a dry dream because when I got up expecting to clean myself, there was not even a drop of semen. I had only taken 3 flomax tablets.
Not that I care about semen production like most men do, but I am concerned that it is being absorbed into my bloodstream or some other part of my body and may have other undesireable side-effects.
Flomax did not help me at all. I still get up and urinate frequently at night. I advise men out there to avoid it.
I took less than one bottle of Flomax and it had a dramatic effect on semen output. Nearly a year later it has NOT regained its full amount. I work at a hospital and met with the surgeon who specializes in this area and he said that there should be NO long lasting effects. I am proof that there is.
My question is… Is there anything to take to stimulate semen generation. I have just read that drinking water may help, but I don’t think that I am water deprived.
I have taken Flomax for about 10 months now. I noticed a decrease in semen with it’s use, but this did not really concern me until just recently. Over the last month I have had about 3 out of 4 episodes where there was no semen output at all. This concerns me because I am left to wonder is it the Flomax or some other problem. The last thing I want to have to go through again is that test they do to you at the urologist. Out of a 10 point pain scale that thing was a 12! They should use it to interogate prisoners of war and then claim it’s not torture! But under the circumstances it looks like i’m gonna have to have it checked out.
I am also taking flomax .Only on my 3rd day and I have also noticed a decrease in the amount of semen after i ejaculate. Big decrease. I liked how it was before flomax.But, if the flomax helps my problem, then, I gotta keep taking it. Hopefully when I finish the treatment I will be back to normal semen amounts
I have been taking Flomax for 12 years, 1 per day. I have not had any NOTICEABLE decrease in semen, though I have had at times a little different sensation during climax. My Urologist says there is sometimes a retro flow of semen where it goes in rather than out. “In” means into the bladder where I’m sure it just gets diluted by the urine there and is eliminated during urination.
I have decided to try taking Saw Palmetto instead of Flomax due to concerns I have about long term effects of Flomax. My Urologists has assured me Saw Palmetto can be an effective alternative. So far, 5 days, and all is good as far as ease of urination, slightly different sensation during ejaculation, but not a problem.
I too experienced a very noticeable decrease in semen. Even no semen at all. It is the Flomax and I’m going to stop taking it. Like Gorden, I’ve gone through that urology and it had me screaming. I’ll never volunteer for that again believe me. I’ll see if there is another med I can take.
i have took flomax for 5 days.i have been having very painfull erections and no seman at all.i also can not sleep at all.i really regret taking the drug.the doctor never told me about harmfull side effects.
My doctor gave me Flomax when i had a kidney stone. I did notice that my urination was not as frequent but longer when I was urinating. Bit it did totally cut off my semen, when having intercourse and masturbation. It kind of scared me until I seen it happened to others. Anyhow kidney stone dod pass (thankfully) and since I stopped taking Flomax , so has my ejaculations.
My doctor gave me Flomax when I had a kidney stone. I did notice that my urination was not as frequent, but longer duration when I was urinating. But it did totally cut off my semen when having intercourse and masturbation. It kind of scared me until I seen it happened to others. Anyhow, the kidney stone did pass (thankfully) and since I stopped taking Flomax , my ejaculations have returned.
I have been taking Flomax for a week, because I have something going on with my prostate. I am only 28 and healthy. Pain, discomfort, and this is possibly a case of prostatitis. ok. but what the heck is going on with the decrease of semen? I noticed it by day 3 on flomax, and thought it could be my anxiety or just the discomfort.
Where did the explosion go?
well, strangely enough… flomax has the exact opposite effect on my. When I take it, my semen volumes increase dramatically. When I don’t, I have much lower volumes. Anyway, suffice to say that now I don’t want to stop taking it even though the doc recently said I don’t have an enlarged prostate.
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Last reviewed: By John M. Grohol, Psy.D. on 28 Oct 2007




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