Tadacip is an ED medication that contains Tadalafil, the same active ingredient found in Cialis. It helps increase blood flow to the penis, making it easier to achieve and maintain an erection. But combining it with other ED medications is not usually advised. Using multiple ED drugs does not enhance performance. Once a PDE5 inhibitor is in your system, adding another doesn’t make it work better—it just increases your risk of side effects or an overdose.