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Flomax side effects

Prostate Cancer | Last Active: Jul 23, 2025 | Replies (18)

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Flomax has made my bladder hypersensitive to what I consider a small amount of urine in it. I am voiding about every hour and a half, day and night. My sleep has suffered immensely, plus when I have to go, I HAVE to go, like immediately, or I leak.

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Replies to "Flomax has made my bladder hypersensitive to what I consider a small amount of urine in..."

Using Flomax for about 9 months now, the first 2 months it seemed to make be urinate more often and I did get dizzy going from seated to standing positions, but those side effects gradually disappeared over time. However, if I take it in the evenings it causes me to wake up multiple times during the night, to urinate. So I take it in the mornings now, with few side effects. Really the only side effect I have now is the inside of my nose is dry, just use saline spray to help this. Anyway, this is my experience so far.

@steelman48
My exact symptoms.

I just had my 2 year follow up with my R/O. I had proton radiation only.

I have to get up from sleep about 3 times a night to make sure I go before urgency hits

When I do have urgency find it very hard to get to bathroom before start to leak. What I have been doing is urinating when I can versus wait for urgency. However been reading the bladder can learn to signal when to urinate based on how much urine is in bladder thus can give a urgency of not that much urine present.

I think my bladder like yours has not become hypersensitive and when I go a small amount. Now I am not talking about something real small but seems to be about a cup most of time.

I was given a prescription for Cialis (generic was given Tadalatil) but I thought was a ED medication until I saw it was also used for prostate issues. Asked my PCP about this via portal before I fill.