Data from 12-week , r and omised , double-blind , placebo-controlled trials of tolterodine extended release ( ER ) , oxybutynin and solifenacin show that combined antimuscarinic+α-blocker treatment is generally more effective than monotherapy or placebo in men with OAB symptoms .
The efficacy and safety  of tolterodine ER+α-blocker treatment was not affected by prostate size or prostate-specific antigen ( PSA ) level .
In men meeting entry criteria for OAB and benign prostatic obstruction trials  , tolterodine ER alone was effective selectively in men with prostate size or PSA level below study medians .
Post hoc analyses from double-blind , placebo-controlled trials and prospect i ve studies of fesoterodine , oxybutynin , propiverine , solifenacin and tolterodine also suggest that antimuscarinics are generally safe and efficacious in men .
A retrospective data base study found that risk of AUR in men was the highest in the first month of treatment and decreased considerably thereafter .
Antimuscarinics , alone or with an α-blocker , appear to be efficacious and safe in many men with predominant OAB symptoms or persistent OAB symptoms despite α-blocker or 5-α-reductase inhibitor treatment .
Despite potential benefits , primary care clinicians may avoid using antimuscarinics in men with overactive bladder ( OAB ) symptoms because of safety concerns .
Efficacy and safety of combined therapy with terazosin and tolteradine for patients with lower urinary tract symptoms associated with benign prostatic hyperplasia: a prospective study
Background The primary objectives of the treatment for the  lower urinary tract symptoms ( LUTS ) associated with benign prostatic hyperplasia ( BPH ) are to produce rapid , sustained , and safe improvements in the symptoms that affect the quality of life in the majority of men over 50 . In this study , we evaluated the efficacy and safety of the combined therapy with terazosin ( & agr;1‐adrenergic receptor antagonist ) and tolterodine ( anticholinergic agent ) for LUTS associated with BPH . Methods This combination study included 69 patients diagnosed with LUTS associated with BPH based on the International Prostate Symptom Scores ( IPSS ) , urinary flow rate , prostate volume , urinary residual , and their serum prostate‐specific antigen levels .  Initially , 191 patients were treated with terazosin 2 mg once daily for one week . Those patients with continued LUTS after the initial treatment were allocated r and omly into two groups : terazosin group ( n=36 ) in which patients were treated with terazosin 2 mg once daily for six weeks , and combination group ( n=33 ) in which patients were treated with both terazosin 2 mg once daily and tolterodine 2 mg twice daily for 6 weeks . Results The IPSS were significantly improved in both groups after treatment , and the reduction of IPSS in the combination group was significantly greater than that in the terazosin group ( P<0.01 ) . A decrease in urgency , frequency and nocturia were the main contributory factors causing the reduction of IPSS in the combination group . The differences about the peak urinary flow rate and the residual urine from the baseline values were noted in both groups after treatment , but were not significant between the two groups . The incidence of adverse effects in the combination group was higher than that in the terazosin group . As expected the most common adverse effect was mouth dryness which was associated with anticholinergic drugs such as tolterodine . Conclusions Patients with LUTS associated BPH appear the improved IPSS after combined therapy with terazosin and tolterodine . This study , although short term and limited numbers of patients , provides evidence that the combined therapy with terazosin plus tolterodine is a good approach for meeting the objectives of rapid , sustained , and safe improvements in the LUTS associated with BPH . And the profile of patients in this study might be used as the indication of such combined therapy for LUTS associated with BPH without urodynamic evaluation
Data from 12-week , r and omised , double-blind , placebo-controlled trials of tolterodine extended release ( ER ) , oxybutynin and solifenacin show that combined antimuscarinic+α-blocker treatment is generally more effective than monotherapy or placebo in men with OAB symptoms .
The efficacy and safety  of tolterodine ER+α-blocker treatment was not affected by prostate size or prostate-specific antigen ( PSA ) level .
In men meeting entry criteria for OAB and benign prostatic obstruction trials  , tolterodine ER alone was effective selectively in men with prostate size or PSA level below study medians .
Post hoc analyses from double-blind , placebo-controlled trials and prospect i ve studies of fesoterodine , oxybutynin , propiverine , solifenacin and tolterodine also suggest that antimuscarinics are generally safe and efficacious in men .
A retrospective data base study found that risk of AUR in men was the highest in the first month of treatment and decreased considerably thereafter .
Antimuscarinics , alone or with an α-blocker , appear to be efficacious and safe in many men with predominant OAB symptoms or persistent OAB symptoms despite α-blocker or 5-α-reductase inhibitor treatment .
Despite potential benefits , primary care clinicians may avoid using antimuscarinics in men with overactive bladder ( OAB ) symptoms because of safety concerns .