Most people can't quite decide with the lucrative features supporting all three drugs: Viagra, Levitra and Cialis. With all of them having the same effect, it is difficult to decide on the best alternative that suits them the most. The common features are that all three drugs are PDE-5 inhibitors, are responsible for maintaining high levels of cGMP which is cyclic guanosine monophosphate so vital for that stiff erection!
Manufacturers
Viagra: Pfizer
Levitra: GlaxoSmithKline and Bayer
Cialis: Eli Lilly and ICOS
Year of FDA Approval
Viagra: March 27, 1998
Levitra: August 20, 2003
Cialis: November 1, 2003
Drug appearance
Viagra: Small blue tablet with the word Pfizer engraved in the middle.
Levitra: Orange tablet with a flame logo.
Cialis: Yellow tablet that is almond shaped and film coated
Generic Name
Viagra: Sildenafil Citrate
Levitra: Vardenafil Hydrochloride
Cialis: Tadalafil
Dosages Available
Viagra: 25 mg, 50 mg, and 100 mg tablets
Levitra: 2.5-mg, 5-mg, 10-mg, and 20-mg
Cialis: 5 mg, 10 mg, and 20 mg tablets
Intake
Viagra: Empty stomach
Levitra: With food
Duration of effect
Viagra: About 4 and 1/2 hrs
Levitra: About 17 to 36 hours
Cialis: About 4 hours
Time Taken to Start work
Viagra: 25 to 45 minutes
Levitra: 30 minutes
Cialis: 30 minutes
Pill Price
Cialis is slightly cheaper than the other two which are priced at par.
Success Rate
Approximately 70 % for all men excluding those allergic to PDE-5 inhibitors. In such cases alternative treatments such as a vacuum pump device or penile implants may be used.
Side Effects
Viagra, Levitra and Cialis share most of the same side effects which are:
Headache
Facial flushing
Altered or blueish vision
What you must remember?
Viagra: The oldest and most trusted drug for ED
Levitra: Works the fastest
Cialis: The longest lasting
Finally, the choice is yours! |
