Sildalist is a medication that combines two active ingredients, sildenafil citrate and tadalafil, in one tablet. Both sildenafil and tadalafil are used to treat erectile dysfunction (ED) in men, but they belong to different classes of drugs. Sildalist is typically prescribed for the treatment of ED in men who may not respond well to either sildenafil or tadalafil alone. By combining both medications in one tablet, Sildalist offers an option for individuals who may benefit from the effects of both sildenafil and tadalafil.