Myrbetriq and Diarrhea: What Users Say

• Kar...
• Taken for 1 to 6 months
• December 20, 2019

For Urinary Frequency "I’ve been on Myrbetriq for a little over a month now. I was thrilled that it worked on the first day, and it seemed like my urinary frequency was cured! But two to three weeks later, I started experiencing terrible stomach pain after eating and then horrible diarrhea. My doctor tried to tell me it wasn’t Myrbetriq, that these are not common side effects of this drug, but after reading these reviews, I see I am not alone in suffering from these particular side effects. I'm sad about quitting this medication because it worked very well for my urinary issues. But I’m quitting this medication today."

• Car...
• February 4, 2019

For Urinary Frequency "After a number of infections and painful cramps throughout the month, an excellent PA decided to give me a load of antibiotics followed by a month of treatment with Myrbetriq. Feeling much better, still have some cramps, but the bladder pain I was having before is gone, so it worked for me. The side effects, however, are horrible. I’m 15 days into the treatment, I’ve developed insomnia, hair loss, severe indigestion, bad stomach cramps after meals, diarrhea, lightheadedness, joint pain, dizziness, and always feeling sleepy during the day. I reached out to my PA, still waiting to hear back from them, but after reading some of the comments, I don’t think the side effects will get any better, so I will stop it for now."

• Don...
• Taken for less than 1 month
• October 11, 2019

For Urinary Frequency "I took this medicine for 2 weeks. The side effects are horrible. They started with very dry mouth and sinus, as I continued the drug, I developed blurry vision, headaches, joint pain that also caused weakness in my hands, chest pain, heart racing, diarrhea, upset stomach, and my hair fell out by the handful. I have been off the med for 3 days now and still feel awful."

• Ret...
• March 1, 2019

For Urinary Frequency "I had been prescribed this drug a couple of years ago and stopped using it due to diarrhea issues. I have gone to a new doctor, and she prescribed the same. I'm taking 2 other drugs. So I started having gastro grumblings, etc. Then I had one experience of explosive diarrhea! Of course, I don't know whether this drug caused it or not. I stopped the drug for a few days, then have had almost continual gastro problems. I am having some hair loss and started taking iron for it, which I read online. Someone commented on that problem as related to Myrbetriq. Needless to say, I am stopping this drug! Not only do I continue to have OAB, some hair loss, but I also am fearful of fecal loss!"

• Mar...
• Taken for less than 1 month
• October 31, 2020

For Urinary Frequency "My urologist gave me a month's supply of Myrbetriq for urinary frequency and incontinence. I was on it for three days, and I experienced diarrhea during the day and lightheadedness and heart palpitations. The third night, I was awakened in the middle of the night with severe constipation, and when I was in the bathroom, unable to have a bowel movement, I had hot and cold sweats, and upon leaving the bathroom, I fainted. I was totally puzzled as to what had happened until I read the side effects and reviews on this medication. Since I already take two medications, one for high blood pressure and one for heart palpitations, this medication was awful to me. Before I read the reviews, I did call my doctor and talk to the nurse, and she never mentioned that I should be careful taking this medication, but I won’t take it ever again. Thank goodness I didn’t have any hair fall out like some people!!!"

• Wen...
• Taken for less than 1 month
• May 27, 2022

For Urinary Incontinence "Tried Myrbetriq for a month for OAB and had terrible cramping that felt like menstrual cramps (I had a hysterectomy 29 years ago, so it wasn't that) and diarrhea. I also had really bad headaches, vision issues, and neurological issues. I also suffer from gastroparesis, so when they warned this drug caused constipation, I was concerned but found I had the opposite issue. Not only was I still in the bathroom for OAB, but now in the bathroom all day having bowel movements all day. I couldn't leave the house. I kept taking it, hoping the side effects would go away, but had to quit when it put me in a colitis attack and sent me to the ER with non-stop bleeding. This drug is horrible. On to the next drug, but not until my colon heals."

• Fru...
• Taken for less than 1 month
• August 16, 2018

For Urinary Frequency "Doc gave me samples to get started. Bad side effects: nausea, slight loss of appetite, stomach cramping, gripping, bloated, and diarrhea. Stopped it after 8 pills. No telling what would happen if I continued. Won't do it! Plus, not covered fully by insurance. After $405 deductible (tier 3 drug class), still $69 a month, which is still about $800 per year."

• Anonymous
• Taken for less than 1 month
• May 21, 2018

For Urinary Frequency "This Myrbetriq caused diarrhea, ocular migraines, headaches, painful urination, and sharp pains in my bladder. I took it for a week and had to discontinue using these pills, the side effects were too intense, painful, and disturbing."

• Lay...
• September 15, 2017

For Urinary Incontinence "This actually made things worse. Before, two light pads a day, now, five or more. What a joke. Nausea and diarrhea. Not worth it."

• Mam...
• Taken for less than 1 month
• September 25, 2017

For Urinary Frequency "Did help with bladder control, but stopped due to side effects - symptoms of common cold, aching, chills, mild diarrhea."