What is the difference between Viagra and Cialis

Viagra and Cialis are both highly effective medications that are designed to treat erectile dysfunction. However, they work on very different timelines. While both belong to the same family of medicines that act on the body by relaxing blood vessels to increase blood flow to the penis, they contain different active ingredients that change how the user takes them.

The biggest difference between the two is how long they stay active in the body. The active ingredient in Viagra is called sildenafil, and it works for about four to six hours after being taken. Cialis contains the active ingredient called tadalafil, and a single dose of the medication can remain effective for up to 36 hours. This gives the user a much wider window of opportunity, allowing for more spontaneous moments.

Another important difference is how food affects the medication. For Viagra to work best, it should be taken on an empty stomach, as eating a heavy meal can delay the medicine from kicking in. Cialis is different because it is not affected by food at all. You can take Cialis with or after a meal without worrying about the effects slowing down.

Both medications typically take about 30 to 60 minutes to start working, and both require the user to be sexually aroused in order to trigger an erection. While Viagra is strictly taken as needed before sexual activity, Cialis is available in a low-dose daily tablet. This daily option builds up in the system so the user can achieve an erection at any time without planning ahead.