Sildalist is essentially a combination pill that blends Sildenafil (the active ingredient in Viagra) with Tadalafil (the active ingredient in Cialis). Sildenafil typically works within 30-60 minutes and remains effective for about 4-6 hours, whereas Tadalafil takes a bit longer to kick in but can last up to 36 hours. The rationale behind combining these two drugs is to offer both a rapid onset and prolonged duration in one tablet. https://www.flatmeds.com/product/sildalist/