Thursday, October 23, 2014
Tuesday, June 24, 2008 Al A, Community Member, asks

Q: Should Flomax/Avodart permanently affect ejaculate volume even after discontinuing medication?

I am a 61 year old who had fairly normal ejaculate volume prior to taking Flomax and Avodart.  I took these two drugs for three months, but stopped two months ago.  I am surprised that the one side-effect of the drug (reduced ejaculate) continues to be present.  Is this normal?  Will the volume return to previous levels or is this permanent?  I am not finding any information on the affect of these drugs when discontinued.  Please help.

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Answers (12)
Jay Motola, Health Pro
7/21/08 3:13pm

Avodart has been associated with a decrease in patients' ejaculatory volume. This drug has a very long half-life and the drug can remain detectable in serum for up to 4 to 6 months after discontinuation of the drug. Flomax may be associated with abnormal ejaculation, including not being able to ejaculate, decreased ejaculate and retrograde ejaculation. However, these side effects are not permanent and should be reversible after stopping the drug. Be patient....!

mike, Community Member
3/ 7/10 1:13pm

O.K.  We know that ejaculate is often reduced, or absent.  Where does it go?  It feels as tho' it's on it's way at orgasm, but never shows up.  Is it re-routed?  Hope you can answer this for me.  Thanks

Larry, Community Member
6/27/11 1:29pm

I had brachytherapy about 6 weeks ago, and the doctor put me on Flomax.  I did not have any problems with both urinating or ejulation prior to the procedure, but now I have a much weaker stream and I am unable to ejulate at all.  I do have a "feeling" when masturbating but nothing comes out.  The doctor wants me to stay on the FLomax until, at least, my first post op PSA test in September.  Would you agree with this, or should I consider stopping the Flomax sooner and see if my ejaculation returns to normal?



Gary, Community Member
1/14/12 7:07pm

I am 60 years old and I had to stop taking Flomax about 4 months ago because I could not ejaculate unless I worked very very hard at it, and then I just got a little dribble,

will this ever get better and is there anything I can do or take to help?

Dan, Editor
6/24/08 3:05pm

Hi Al,


Thanks for your question.  I've passed it along to one of our doctors to answer, and we'll let you know when we have a response.



John Quanquin, Community Member
11/16/08 2:48pm

I have the same problem as the above question

Butte Man of Montana, Community Member
2/18/09 11:45pm

I am a 60 year old man who had fairly large ejaculate volume prior to taking avodart.  I was always proud of this part of my "manhood".  I hope it returns.  I have only been off for one week and I am almost afraid to try.  The doctor said the serum level is present 4 to 6 months?  Here's hoping for us.  Hang in there pal.  I'll keep you posted and I'll look forward to your posting the day you discover its back to normal.

wienerdog, Community Member
8/12/09 12:09am

My Dr. has me on Flomax and Avodart , is there a problem with taking both of these prostate drugs together ?

RickisShalom, Community Member
10/ 3/09 2:18pm

I am 54 and have been on Flomax for about a week.  To my pleasant surprise I seem to have a deeper orgasm and a stronger ejaculation.  This seems to be the opposite of what I see here.  Wondering if anyone else has experienced similar symptoms.

PTower, Community Member
12/27/09 10:17am

Consider yourself lucky...and keep up in the loop if you have any changes. I want some of your Flomax!  LOL

angelo, Community Member
2/ 2/10 3:33pm

yeah that's very odd. I'm 35 an took flowmax for my (early bph). I guess it was a prohormone that created my BPH (Methyl 1-D XL, and T-Bomb II ) to be precise. Anyway My experience with flow max was the complete opposite of yours. As flowmax relaxes the muscles men us to control their urination and ejaculate. This create retro ejaculation. Mine was so bad none of my ejaculate came out.. I dunno where it went.. into my bladder I suppose. Yeah I was shooting blanks, and the slightly strange feeling made me not want to get off.. let alone be with a woman.


My general practitioner gave me flowmax.. I went to a urologist and he gave me some avodart... I hope it's a lot better then flowmax side effect wise..


After reading the Dr. post about avodart taking a long time (over 3 months) to go out of the body and then saying "be paitent"..... heh.. I'm not very eager to trash my sex life for a year.. I don't know what to do..... yet

amithatold, Community Member
7/22/12 1:33am

I'm 38 and have been on FloMax for approximately 36 hours and have had intercourse twice and nothing! everything feels normal, leading up to climax, then nothing! I asked my Dr about all associated side effects and this was never mentioned. is this a common side effect, or does it only occur in a specific group of us? Please let me know if anyone gets a real answer on this topic!

Gabriel43, Community Member
7/15/14 12:28pm
I'm 43, and I've experienced the exact same thing. I took my first pill less than 12 hours ago and already I can produce zero ejaculate. I can feel like its about to then nothing, it made the climax sensation very strange. As if I wasn't sure it happened... Sounds like a lot of people have had this side effect, but my question is, is it 100%, or does this only happen sometimes on flomax? Could others with the problem please advise! Reply
beenthere2, Community Member
1/14/12 12:44pm

Just you wait ! it will hit you like a hammer when it happens, get off it now ! Don't take avodart either !!

Indyguy67, Community Member
10/20/09 10:16am

I have taken Flomax and Avodart for the past six months.  I have noticed a considerable change in ejaculate volume.  I stopped taking the Flomax and now take only the Avodart.  While ejaculate volume issues subsided somewhat there are still issues with it.  I have noticed some improvement in my erectile dysfunction issue but I feel certain that the Avodart is still having an impact with both the ed and the low ejaculate volume.  However, the low ejaculate volume does not have an impact on the orgasm effect.  I'm 67 years young (at least in my head) but must recognize that I do not have the libido of a 30 year old.  The ed  has been helped by the use of Viagra though it is definitely short term.

PFG, Community Member
10/27/09 8:59pm

I am 60 taking flomax for 2-3 years 2 cap. /day 

It has stopped ejaculation completely!!

It has also almost completely taken away the sensation of orgasm even for masturbation. It seems that my brain knows that something happened but the body sensations are missing.

It has been a psychological chalenge to accept it. I am going to discuss other options with my dr in a few weeks..

last time I did I was told thaat flomax was the best there was short of surgery 

chuck, Community Member
10/28/09 2:36pm

answer question

shock_doc, Community Member
4/19/10 11:15pm

retrograde ejaculation occurs when the muscle that tightens upon orgasm is relaxed by the flomax, what happens is that instead of coming out the uretha it goes into the bladder. After ejaculation you won't see any evidence that orgasm occured, but you will feel as though it did - when you urinate it will be cloudy. This is because the semen goes into the bladder because the muscle that directs it to go out the uretha is relaxed by the medication. After discontinuing Flomax it should return to normal - if it doesn't you should see a urologist - retrograde ejaculation isn't necessarily harmful in and of itself but it may be a symptom of something that is (perhaps prostate cancer or other issues)

ROBERT M.CARROLL, Community Member
8/12/13 8:12am


Jim, Community Member
12/13/11 11:50pm

In June I underwent brachytherapy and was put on Tamsulosin.  I am an active 70 year old with a lively sex life and no ED (probably helped by a beautiful 55 year old wife who still enjoys love-making).  Until the procedure I was always told that I produced an unusually large amount of ejaculate.  When resuming sex after the procedure, I experienced an orgasm but produced no semen, and it remained that way as I was to continue the Tamulosin for 6 months.  I also felt that the "dry" ejaculations were less intense than prior to the procedure.  About 8 to 10 days ago I went "cold turkey" and last night when ejaculating during sex I produced a small amount of semen with a more intense climax.  Hallelujah!  I will be interested in seeing if the "super load" returns over the next 6 months.  Will gladly sacrifice the conservation of kleenex and non-stained sheets for the good old days.   

Frank G., Community Member
5/14/14 3:34pm

I should have never taken Flomax.  It was prescribed to me after an outpatient  surgical procedure to replace kidney stents through my bladder.  That night I was unable to urinate so had to go to the ER and have a catheter inserted.  At the same time, I was prescribed Flomax without any explanation as to why.  I now understand why the doctor prescribed it, but had I know the side effect of dry orgasm, I never would have taken it.  My inability to urinate on the evening of my surgery was the result of the procedure I had done that day, both the surgery itself and the sedation that was still in my system.  I didn't have a problem urinating before the surgery, and would have been fine after the catheter was removed.  I just decided today to stop the Flomax, and the doctors agreed.  I better get my normal ejaculation back as there was no real need to take Flomax and rixk that side effect in the first place.

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By Al A, Community Member— Last Modified: 07/15/14, First Published: 06/24/08