Viagra vs Cialis which is better

Viagra generally takes 30–60 minutes to become effective, while Cialis can start working in about 30–45 minutes. Both are fast-acting, but Viagra may have a slightly quicker onset for some men. Cialis can remain effective for up to 36 hours, while Viagra typically works for 4–6 hours. This makes Cialis better for men who want more flexibility and spontaneity.