It’s not known to. Changes in weight or appetite weren’t reported in clinical studies of Myrbetriq.
But Myrbetriq can sometimes cause urinary retention (being unable to empty your bladder). This could lead to temporary weight gain. See “Myrbetriq side effects” above to learn more about urinary retention.
If you’re concerned about changes in your weight while taking Myrbetriq, talk with your doctor. They can try to determine the cause and suggest ways to manage this.