F. Alpha-adrenergic drugs such as pseudoephedrine improve stress incontinence by increase resting urethral tone. These drugs cause subjective improvement in 20 to 60 percent of patients.

• 肾上腺素能药物比如说伪麻黄碱可以增加尿道内的压力。该药物可以改善20%25-60%25患者的主观症状。