Patients w/ lower urinary tract obstructive disease including benign prostatic hyperplasia; severe cardiac disease. Perform exam eg, urinalysis prior to use & confirm clinical symptoms of patients including UTI, urinary calculus, & lower urinary tract neoplasm (eg, bladder & prostate cancer). Co-administration w/ CYP3A4 & P-gp inhibitors/inducers. Advanced hepatic impairment. Pregnancy & lactation. Childn. Elderly.