Key takeaways
Vibegron (Gemtesa) and tamsulosin (Flomax) are both oral medications used to address urinary issues, but they belong to different medication classes and have distinct uses. Vibegron is a beta-3 adrenergic agonist primarily used to treat overactive bladder (OAB), including in those taking medications for benign prostatic hyperplasia (BPH). Tamsulosin, on the other hand, is an alpha-1 blocker specifically approved for treating BPH by relaxing muscles in the prostate and bladder to ease urination. Vibegron is taken once daily at a dose of 75 mg, while tamsulosin is typically started at 0.4 mg once daily, taken 30 minutes after the same meal each day. Vibegron is only available as a brand-name medication, whereas tamsulosin is available as a lower-cost generic. Common side effects of vibegron include headache and cold symptoms, while tamsulosin may cause headaches, dizziness, and abnormal ejaculation.
