Erectile dysfunction, a condition characterized by a repeated inability to maintain an erection firm enough for intercourse, sometimes can be easily treated with medications, among them Levitra
® (
vardenafil HCL) and Cialis
® (
tadalafil). These drugs are similar in many ways, but there are some differences to be aware of.
When comparing Cialis vs. Levitra, both medicines work in a similar fashion: by inhibiting the chemical process that allows blood to flow out of the penis. More blood flow in the penis leads to an improved erection. Both drugs come in tablet form and are taken with a glass of water. They can also be taken with or without food.
The primary difference between the two is in how long the effects last. Cialis lasts up to 36 hours, while Levitra is a much shorter-acting drug. Although many references state that Levitra lasts about four or five hours, some studies show that it may last as long as 10 hours.
The dosing is also slightly different between Levitra and Cialis. Levitra is taken just prior to sexual activity; Cialis can be taken this way too, or it can be taken on a daily basis, regardless of when sexual activity is anticipated.
Another very important difference between Cialis and Levitra is that Cialis is approved to treat
enlarged prostate symptoms as well as
ED. Levitra is not approved for this use.
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