Cialis, Levitra, and Viagra work by a similar mechanism to cause erections. There are subtle differences in how long the drug works and how quickly it works.
Levitra works a little longer than Viagra. They both take effect in about 30 minutes. With Levitra, the effects last for about 5 hours. With Viagra, the effects last approximately 4 hours.
Cialis works a bit faster (within about 15 minutes), and the effects last much longer — up to 36 hours in some cases.
Viagra
VIAGRA is the most prescribed oral medicine for erectile dysfunction (ED). Worldwide, it has helped 25 million men with ED improve their erections.
• VIAGRA has an established safety profile of more than 10 years
• VIAGRA works for most men with ED
• VIAGRA is safe for men with ED who have certain other conditions
Getting an Erection is only Part of the Story
Men agree. In a global survey, men identified 3 of the most important elements of a satisfying sexual experience: hardness, timing, and the ability to maintain an erection. VIAGRA can help with all 3.
Find out if VIAGRA is right for you. Speak to your doctor. He can tell you if you have ED. And can recommend an effective treatment like VIAGRA.
Cialis
Do you want the freedom and flexibility to choose when the moment is right for sexual activity. And when the moment is right, do you want to know that your ED (erectile dysfunction) medicine can work for you. If you answered yes, CIALIS offers you choices—two different dosing options to meet your individual needs and lifestyle.
Levitra
LEVITRA (vardenafil HCI) is an FDA-approved oral prescription medication for the treatment of erectile dysfunction (ED) in men. It is available in 2.5-mg, 5-mg, 10-mg, and 20-mg tablets and is taken about 1 hour prior to sexual activity. Take LEVITRA no more than once a day.
What LEVITRA does:
• LEVITRA helps increase blood flow to the penis, so it may help men with ED get and keep an erection that lasts long enough for sexual activity.
•LEVITRA has been clinically shown to improve erectile function, even in men who had other health factors, like high cholesterol1, high blood pressure2, or diabetes.
