mirabegron vs vibegron
Side-by-side comparison of mirabegron and vibegron Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Myrbetriq
Gems
Mirabegron is a medicine that helps control an overactive bladder. It relaxes the bladder muscle, allowing it to hold more urine.
Gemtesa is a medicine that helps control an overactive bladder. It relaxes the bladder muscle, so you don't have to go to the bathroom as often.
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).
Gemtesa treats overactive bladder (OAB) in adults. OAB can cause you to feel a sudden need to pee (urgency). It can also cause you to pee more often (frequency) or leak urine (urge urinary incontinence). Gemtesa can also treat these symptoms in men who are taking medicine for an enlarged prostate (benign prostatic hyperplasia or BPH).
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.
Gemtesa is a beta-3 adrenergic agonist. It works by relaxing the bladder muscle. This helps to increase the bladder's capacity to hold urine and reduces the urge to go.
- • High blood pressure
- • Common cold symptoms (nasopharyngitis)
- • Urinary tract infection
- • Headache
- • Headache
- • Urinary tract infection
- • Runny or stuffy nose
- • Diarrhea
- • Nausea
- The medicine is not working 5,738
- Using the medicine for something it's not approved for 2,683
- Feeling tired 2,215
- Head pain 2,162
- Feeling lightheaded 2,093
- The medicine is not working 886
- Diarrhea 328
- Headache 328
- Urinary tract infection 280
- Cannot afford the medicine 265
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.
Gemtesa can cause urinary retention, which means you can't empty your bladder fully. Tell your doctor if you have trouble emptying your bladder or are taking other medicines for OAB. Angioedema (swelling of the face, tongue, or throat) has been reported with Gemtesa. If this happens, stop taking Gemtesa and get medical help right away.
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.
There is not enough information about using Gemtesa during pregnancy to know if it is safe. Talk to your doctor if you are pregnant, plan to become pregnant, or are breastfeeding.
How to Read This mirabegron vs vibegron Comparison
mirabegron is classified in the Beta-3 Agonist (Overactive Bladder) drug class, while vibegron sits within the Beta-3 Agonist (Overactive Bladder) class. Because both drugs share the same classification, they are often considered interchangeable in theory — but clinical outcomes rarely track that cleanly. 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 14,891 submissions while vibegron has 2,087. Those figures reflect cumulative reporting volume — not per-patient risk — so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot substitute for clinical judgment. Effectiveness, tolerability, drug-drug interactions with your other medications, kidney and liver function, pregnancy status, insurance formulary, and price all feed into a decision that only a licensed prescriber can make responsibly. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This page is for educational purposes only, is not medical advice, and should not be used to self-switch between mirabegron and vibegron — always consult your physician or pharmacist first.
Important: This comparison is for informational purposes only. Drug effects vary between individuals. Always consult your doctor or pharmacist for personalized medical advice.