Licht M R
Department of Urology, Cleveland Clinic Florida, Ft. Lauderdale, USA.
Compr Ther. 1999 Feb;25(2):90-4. doi: 10.1007/BF02889601.
Erectile dysfunction is a common problem affecting men. Sildenafil (Viagra) is the first oral medication approved for the treatment of erectile dysfunction. It has proven to be an effective option in the treatment of erectile dysfunction of different etiologies.
勃起功能障碍是影响男性的常见问题。西地那非（伟哥）是首个被批准用于治疗勃起功能障碍的口服药物。事实证明，它是治疗不同病因勃起功能障碍的有效选择。
