Does Viagra increase duration of sex?

Viagra (sildenafil) primarily increases blood flow to the penis, helping to achieve and maintain an erection in men with erectile dysfunction. While it can enhance the ability to engage in sexual activity, it does not directly increase the duration of sexual intercourse. Factors such as arousal, anxiety, and overall sexual experience play significant roles in the duration of sex. Therefore, while Viagra may help with performance, it doesn't necessarily prolong the act itself.