Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Adverse effects.
Notes: (A) Discontinued rate due to adverse events, (B) frequently reported adverse events, and (C) sexual dysfunction. *P<0.05; **P<0.01; ***P<0.001.
Abbreviations: CI, confidence interval; SD, standard deviation; df, degrees of freedom.
