mirabegron vs warfarin

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Side-by-side comparison of mirabegron and warfarin. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.

minor Known Drug Interaction

7.3 Warfarin The mean C max of S - and R -warfarin was increased by approximately 4% and AUC by approximately 9% when administered as a single dose of 25 mg after multiple doses of 100 mg mirabegron. Following a single dose administration of 25 mg warfarin, mirabegron had no effect on the warfarin pharmacodynamic endpoints such as International Normalized Ratio (INR) and prothrombin time. However, the effect of mirabegron on multiple doses of warfarin and on warfarin pharmacodynamic end points such as INR and prothrombin time has not been fully investigated [see Clinical Pharmacology (...

Drug Class
mirabegron Beta-3 Agonist (Overactive Bladder)
warfarin Vitamin K Antagonist (Anticoagulant)
Type
mirabegron Prescription
warfarin Prescription
Summary
mirabegron

Mirabegron is a medicine that helps control an overactive bladder. It relaxes the bladder muscle, allowing it to hold more urine.

warfarin

Warfarin is a medicine that helps prevent blood clots. It is used to treat and prevent dangerous clots from forming in your body.

What It Treats
mirabegron

Mirabegron treats overactive bladder (OAB) in adults. OAB can cause you to feel a frequent and urgent need to urinate. It can also lead to accidental urine leakage (urge urinary incontinence).

warfarin

Warfarin is used to prevent and treat blood clots in your veins and lungs. It can also prevent clots if you have atrial fibrillation (irregular heartbeat) or a replacement heart valve. After a heart attack, it can lower the risk of death, another heart attack, or a stroke.

How It Works
mirabegron

Mirabegron is a beta-3 adrenergic agonist. It works by relaxing the bladder muscle. This helps increase the bladder's capacity to store urine and reduces the urge to go.

warfarin

Warfarin works by blocking your body's use of vitamin K. Vitamin K is needed to make blood clotting factors. By blocking vitamin K, warfarin makes your blood less likely to clot.

Common Side Effects
mirabegron
  • High blood pressure
  • Common cold symptoms (nasopharyngitis)
  • Urinary tract infection
  • Headache
warfarin
  • Bleeding from any tissue or organ
FAERS Reports
mirabegron
  • Fatigue 2,215
  • Headache 2,162
  • Dizziness 2,093
  • Fall 1,892
  • Diarrhoea 1,861
warfarin
  • International Normalised Ratio Increased 10,276
  • Dyspnoea 8,408
  • Drug Interaction 6,288
  • Fatigue 6,143
  • Nausea 5,921
Serious Warnings
mirabegron

Mirabegron can raise your blood pressure. Your doctor should check your blood pressure regularly, especially if you have high blood pressure. Mirabegron is not recommended if you have severe, uncontrolled high blood pressure (180/110 mm Hg or higher). Use caution if you have bladder outlet obstruction or are taking other medicines for overactive bladder, as it can increase the risk of urinary retention. Angioedema (swelling of the face, lips, tongue, or throat) has been reported.

warfarin

Warfarin can cause major or fatal bleeding. You must have your blood tested regularly (INR) while taking warfarin. Many things, like other medicines and diet changes, can affect your INR. Tell your doctor about any bleeding and follow their instructions to prevent bleeding.

Pregnancy
mirabegron

It is not known if mirabegron can harm an unborn baby. Talk to your doctor if you are pregnant, plan to become pregnant, or are breastfeeding.

warfarin

Warfarin can harm your unborn baby, especially during the first three months of pregnancy. Do not take warfarin if you are pregnant, unless you have a mechanical heart valve and your doctor says the benefits outweigh the risks. Talk to your doctor if you are breastfeeding, and watch your baby for bruising or bleeding.

Also Compare, Nearby Drugs

Compare mirabegron with

How to Read This mirabegron vs warfarin Comparison

mirabegron is classified in the Beta-3 Agonist (Overactive Bladder) drug class, while warfarin sits within the Vitamin K Antagonist (Anticoagulant) class. Drugs from different classes work through distinct mechanisms, so a head-to-head comparison illustrates trade-offs rather than equivalence. Both drugs are prescription-only, so a licensed provider must authorize use.

Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, mirabegron has 10,223 submissions while warfarin has 37,036. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. These two drugs have a known minor interaction flagged in FDA labeling, attributed to mirabegron can slightly increase the levels of warfarin in your body.. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.

A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for mirabegron or warfarin.

Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.