Botox injections into the bladder can be an effective treatment option for bladder problems, but there are some potential side effects to consider. The most common side effect is an increase in post-urination residue, which can lead to urinary retention and the need for temporary catheterization. Other side effects include bleeding in the urine, urinary tract infection, difficulty passing 10-20%, and a reaction to botulinum toxin. To reduce the risk of side effects, it is important to follow your doctor's instructions and use the medication safely and effectively. Botox is administered through a cystoscope as a series of rapid injections into specific areas of the bladder muscle.
Your doctor will determine the dose based on your condition and response to previous treatments. No effect is seen immediately after injection and muscle paralysis occurs slowly over the next few days, with maximum effects approximately 7 to 10 days after injection. If side effects last longer, bother you, or worsen, talk to your doctor or pharmacist. If side effects seem life-threatening or if you think you're having a medical emergency, call 911 or the local emergency number right away. If you are looking for treatment options for certain bladder problems, your doctor may recommend Botox (OnabotulinumToxin). It is usually used when behavioral and exercise therapies and medications have not been effective in treating symptoms.