Drugs Comparison

View the comparison of three most effective ED drugs: Viagra, Cialis and Levitra, and choose the one that fit you most.

Medical Information
	VIAGRA	CIALIS	LEVITRA
Duration of Effectiveness	Up to 4 hours	Up to 36 hours	Up to 5 hours
Taken how long before intercourse?	More than 30 minutes before sex	Thirty minutes or 12 hours before sex	Approximately one hour before sex
General Side Effects (which disappear in a short time)	Headache, upset stomach, facial flushing	Headache, back pain, indigestion, flushing, muscle aches, stuffy or runny nose	Headaches, facial flushing, stuffy or runny nose, dizziness, indigestion, upset stomach
Unusual Side Effects	An erection that lasts for more than 4 hours (priapism), (requires immediate medical attention) vision changes - seeing a bluish tint, decrease in vision or hearing	An erection that lasts more than four hours - priapism (seek urgent medical attention), seeing a bluish tint, decrease in hearing or vision	An erection that lasts more than four hours requires quick medical attention, vision changes like seeing a bluish tint, decrease in hearing or vision
Availability of Doses	25 mg, 50 mg, 100 mg	2.5 mg, 5 mg, 10 mg, 20 mg	2.5 mg, 5 mg, 10 mg, 20 mg
Is it a Once-a-Day Dose?	No	Yes, 2.5 mg and 5 mg doses	No
Frequency of the Pill	Only once in 24 hours	Only once in 24 hours	Only once in 24 hours
Availability of� Generic Prescription for This Drug	No FDA approved generic prescriptions for Viagra, Cialis or Levitra are available. Any generic versions you come across on the Internet are produced in foreign countries and might be unregulated or harmful to your health.

Other Useful Information
	VIAGRA	CIALIS	LEVITRA
What is the Appearance of the Pills?	Viagra is a blue colored diamond-shaped pill with the "pfizer" logo on the front, and the letters "VGR" on the back, followed by the pill's dosage in milligrams (25, 50 or 100).	Cialis is a yellow-colored, almond-shaped pill with a "C" and either a "10" or "20" to indicate milligrams, on the front. The back surface is blank.	The Levitra pill has the "Bayer" insignia on one surface and on the rear surface either a "10" or "20" is printed to indicate milligrams.
Can Pill be Taken With Food?	Yes, but the absorption of the active ingredient may be hampered, especially with high fat meals.	Yes, it can be taken with food or on empty stomach.	Yes, Levitra can be taken along with or without food.
Manufacturer Promotions	The Viagra Value Card program was canceled on Jan. 31, 2009. There are no current promotions.	The Cialis Promise: Try 36-hour Cialis or the Cialis daily-dose regimen for free.	3-For-Free promotion: Allows you to acquire 3 free Levitra tablets with a doctor's prescription
Storage Recommendations	Recommended storage at 77°F. (Deviations permitted to 59 and 86 ° F)	At room temperature (between 59 and 86° F)	At room temperature (between 59 and 86° F)
Revenues for 2008	$1.934 billion worldwide (+10%), $897 million U.S. (+13%	$1.445 billion worldwide (+26%), $539 million U.S. (+27%)	$503 million worldwide (+2%)