May cause somnolence. Exercise caution before driving or using machinery. 60-mg tab contains 31.5 mg Na per tab. Not recommended in patients w/ severe hepatic impairment, during pregnancy, & in women of childbearing potential not using contraception. Decide whether to discontinue breast-feeding or discontinue/abstain from therapy taking into account the benefit of breast-feeding for the child & the benefit of therapy for the woman. Safety & efficacy in childn <18 yr have not yet been established.