Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Darifenacin ER (formerly branded as Enablex) and Myrbetriq (mirabegron) are both used to treat overactive bladder (OAB) symptoms, but they work in different ways and have distinct characteristics. Darifenacin ER is a urinary antispasmodic that relaxes bladder muscles by blocking certain receptors, while Myrbetriq is a beta-3 adrenergic agonist that helps the bladder hold more urine by activating specific proteins. Darifenacin ER and Myrbetriq are both available in generic forms, making them more cost-effective option. Myrbetriq can be used in children aged 3 and older for neurogenic detrusor overactivity (NDO), while darifenacin ER is only for adults. Common side effects of darifenacin ER include dry mouth and constipation, whereas Myrbetriq can cause high blood pressure and urinary tract infections. Additionally, darifenacin ER is generally not recommended for those 65 or older due to increased risk of dizziness and drowsiness, while Myrbetriq might be safer for older adults.
Darifenacin
Myrbetriq (mirabegron)
Darifenacin
Myrbetriq (mirabegron)
Summary of Enablex vs. Myrbetriq
Summary for Anticholinergic
Prescription only
Darifenacin hydrobromide is a medication that treats overactive bladder in adults. It belongs to a drug class called anticholinergics. Darifenacin comes as an extended-release tablet that you take by mouth once a day. Common side effects include dry mouth and constipation. The brand name of the medication, Enablex, has been discontinued. So generic darifenacin is the only version available now.
Summary for Beta-3 adrenergic agonist
Prescription only
Myrbetriq (mirabegron) is used to help with overactive bladder (OAB) in adults. It can also treat a bladder problem called neurogenic detrusor overactivity (NDO) in children 3 years and older. It works as a beta-3 adrenergic agonist to help the bladder hold more urine. Myrbetriq (mirabegron) is taken by mouth once a day. It comes as a brand-name or generic extended-release tablet. A solution made from granules of the medication is available for children, but it's brand name only. Side effects include high blood pressure, cold symptoms, and urinary tract infections.