When Taking Cialis Every Day, How Long Does It Take For It To Start Working?

How long does cialis take to work? According to clinical research, Cialis may begin to take effect in as little as 30 minutes. The usual length is approximately one hour, while some people may have a longer start period. By contrast, Viagra typically takes effect 30 to 60 minutes after ingestion and reaches its peak efficacy in 1 to 2 hours. Another choice is Ro Sparks, a sublingual combination of sildenafil and tadalafil that starts working in around 15 minutes.