Can Medrol (methylprednisolone) cause increased urinary frequency as a side effect?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Educational purpose only • Exercise caution as content is pending human review
Article Review Status
Submitted
Under Review
Approved

Last updated: June 2, 2025View editorial policy

Personalize

Help us tailor your experience

Which best describes you? Your choice helps us use language that's most understandable for you.

From the Guidelines

Yes, Medrol (methylprednisolone) can cause increased urinary frequency as a side effect, as evidenced by its use in combination with abiraterone for the treatment of metastatic castration-resistant prostate cancer (CRPC), where urinary frequency and nocturia were reported as common adverse reactions 1. This corticosteroid medication can affect fluid balance in the body, leading to increased urine production. The combination of abiraterone with methylprednisolone has been shown to be effective in treating CRPC, but it also comes with a range of side effects, including urinary frequency.

Some key points to consider:

  • Methylprednisolone may increase urine production by altering kidney function and sodium retention patterns.
  • The side effect of increased urinary frequency is more likely to occur at higher doses and with longer treatment durations.
  • Patients taking Medrol who experience bothersome increases in urination should discuss this symptom with their healthcare provider, as abrupt discontinuation of the medication is not recommended due to the need for gradual tapering.
  • The effect of increased urinary frequency is typically temporary and resolves when the medication is reduced or discontinued.
  • Other urinary changes, such as burning, pain, or blood in urine, are not expected side effects of Medrol and should prompt immediate medical attention, as they may indicate an unrelated condition.

It is essential for patients taking Medrol to be aware of this potential side effect and to monitor their urinary frequency, especially if they are taking the medication for an extended period or at high doses. Regular follow-up with their healthcare provider can help manage any adverse effects and ensure the best possible outcome.

From the Research

Medrol and Urinary Frequency

  • Medrol, also known as methylprednisolone, is a corticosteroid used to treat various conditions, including inflammatory and immune system disorders.
  • The relationship between Medrol and urinary frequency is not directly addressed in the provided studies, but some studies suggest that methylprednisolone may affect renal function and urine production.
  • A study published in the European journal of endocrinology 2 found that methylprednisolone treatment increased renal water and sodium absorption, which could potentially lead to changes in urinary frequency.
  • However, another study published in the Journal of nephrology 3 did not report any significant changes in urinary frequency as a side effect of methylprednisolone treatment in patients with IgA nephropathy.
  • It is essential to note that the provided studies do not directly investigate the effect of Medrol on urinary frequency, and more research is needed to fully understand this potential relationship.

Related Studies

  • A study on the use of amitriptyline in patients with urinary frequency and pain 4 found that the medication was therapeutically useful in treating vague voiding dysfunctions, including urinary frequency.
  • Another study on the cognitive and mood side effects of lower urinary tract medication 5 discussed the potential adverse effects of certain medications on cognitive function and mood, but did not address the specific relationship between Medrol and urinary frequency.

Limitations

  • The provided studies do not directly investigate the effect of Medrol on urinary frequency, and more research is needed to fully understand this potential relationship.
  • The studies that are available do not provide conclusive evidence of a link between Medrol and increased urinary frequency, and more studies are needed to determine the potential side effects of Medrol on urinary function.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.