Managing Nocturia: Alternatives and Considerations for SSRI Users - Urology

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Nocturia issues?


Hello, Doctor! I visited the clinic yesterday due to experiencing frequent nocturia (at least three to four times a night with a total urine output close to 2000 ml, filling two urinals).
After a physical examination, the doctor prescribed "Oshoo" and "Minirin," and also ordered blood tests.
During the consultation, I informed the doctor that I am currently taking antidepressant medication.
When I was about to take the medications before bed, I checked for potential interactions between these two medications and my antidepressant (an SSRI, which I also take at bedtime).
I found that "Minirin" could interact with the SSRI, leading to hyponatremia, so I only took "Oshoo" that night.
Therefore, I would like to ask: 1.
Are there any alternative medications for treating primary nocturia besides "Minirin"? 2.
If there are no alternative medications, should I consider reducing (or discontinuing) the SSRI and limiting fluid intake after 8 PM to see if there is any improvement? Thank you for your guidance on these two points.

josephy1, 50~59 year old female. Ask Date: 2023/06/21

Dr. Chen Jiansheng reply Urology


Please seek medical attention.

Reply Date: 2023/06/21

More Info


Managing nocturia, especially in patients who are also taking selective serotonin reuptake inhibitors (SSRIs), can be quite complex. Nocturia, defined as the need to wake at night to urinate, can significantly impact quality of life and may be caused by various factors, including bladder dysfunction, prostate issues in men, and even certain medications.
1. Alternatives to Minirin (Desmopressin): While Minirin is a common treatment for nocturia, particularly in cases related to nocturnal polyuria, there are other options available. Anticholinergic medications, such as oxybutynin or tolterodine, can help reduce bladder overactivity, which may contribute to nocturia. However, these medications can have side effects, including dry mouth and constipation, and may not be suitable for all patients, especially those with cognitive impairment or certain types of glaucoma.
Additionally, lifestyle modifications can play a crucial role in managing nocturia. Patients are often advised to limit fluid intake in the evening, particularly caffeine and alcohol, which can irritate the bladder. Pelvic floor exercises may also help strengthen the bladder and reduce urgency. In some cases, behavioral therapies, such as bladder training or scheduled voiding, can be effective.
2. Considering SSRI Reduction and Fluid Intake: If you are experiencing significant nocturia, it may be worthwhile to evaluate the role of your SSRI in this condition. SSRIs can sometimes contribute to urinary retention or other urinary symptoms, although this is not universally the case. Before making any changes to your medication regimen, it is essential to consult with your prescribing physician. They may consider adjusting the dosage or switching to another antidepressant that has a more favorable side effect profile regarding urinary symptoms.

Reducing fluid intake after a certain time in the evening (e.g., after 8 PM) is a common recommendation for managing nocturia. This strategy can help decrease the volume of urine produced at night, potentially reducing the frequency of nocturnal awakenings. However, it is crucial to balance this with adequate hydration throughout the day to avoid dehydration.

In summary, managing nocturia in the context of SSRI use requires a multifaceted approach. Alternatives to Minirin include anticholinergic medications and lifestyle modifications. It is also important to discuss any potential interactions between your current medications and the new prescriptions with your healthcare provider. They can help you weigh the benefits and risks of continuing your SSRI at its current dosage versus making adjustments. Always consult with your healthcare provider before making any changes to your medication or treatment plan.

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