Table 1. Antimuscarinic agents for adults with OAB.

	Starting dose regimen*	Dose escalation*
Darifenacin	7.5mg	15mg
Fesoterodine	4mg	8mg
Imidafenacin	0.1mg bid	0.2mg bid
Oxybutynin**	10mg ER or 5mg IR bid or tid	115-20mg ER or 5mg qid
Propiverine**	30mg ER or 15mg IR bid	45mg ER or 15mg IR tid
Solifenacin	5mg	10mg
Tolterodine	4mg ER or 2mg IR bid	Not evaluated
Trospium	60mg ER or 20mg bid	Not evaluated

^*Recommended initial dose for adults with no liver or renal function impairment; Unless noted, regimens are once-daily dosing; bid: twice a day; tid: three times a day; IR: immediate release; ER: extended release;

^**Agents with mixed mechanism of action but predominant antimuscarinic action.