my doc just prescribed mybertiq. Only taken it one day so I can't comment on it's efficacy.

Myrbetriq (mirabegron) is a prescription medication used to treat overactive bladder (OAB) in adults and neurogenic detrusor overactivity (NDO) in children. It is available as extended-release tablets or granules for oral suspension. Myrbetriq works by helping the bladder hold more urine.
May take 4 to 8 weeks to see improvement in OAB symptoms.
Full effect may be seen within 12 weeks for some people.