Does erectile dysfunction drug use contribute to risky sexual behavior?
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摘要:
Erectile dysfunction (ED) is a common sexual problem affecting up to one-third of men through-out their lives. According to the Massachusetts Male Aging Study (MMAS), ED affects an estimated 52% of men between the ages of 40 and 70. With the approval of silde-nafil (USA in March 1998), the first phosphodiesterase type 5 (PDE-5) inhibitor to be made available for treatment of ED, and the subse-quent approval of vardenafil (USA in August 2003) and tadalafil (USA in November 2003), the PDE-5 inhibitor class of drugs has rapidly become the first-line therapy for ED of varying etiologies and se-verities.