There are only three FDA approved oral drugs for impotence (erectile dysfunction) treatment. Viagra (Sildenafil), Cialis (Tadalafil) and Levitra (Vardenafil). They each have slightly different chemical component. These minor difference mean that the three treatments behave slightly different, all of them are PDE-5 inhibitor. All work by increasing the flow of blood into the penis helps to get erection but needs man to be sexually stimulated.
What are the differences between Viagra, Cialis and Levitra?
There are minor differences in how quickly it works and how long the drug works.
Cialis works bit faster within about 30 minutes and its effect lasts for about 36 hours. Viagra takes 20 minutes to one hour to work and its effects lasts for around 4 hours. Levitra works bit faster than Viagra in about 30 minutes and its effect lasts for 4-5 hours.
Dosage
Maximum dosage for Viagra is 100mg while maximum dose for Cialis and Levitra is 20mg. Viagra is available in 25mg, 50mg and 100mg. Cialis – 10mg and 20mg and Levitra 5mg, 10mg and 20mg.
Side effects
Common side effects :
- Headache
- Flushing
- Back pain
- Nasal Congestion
- Dizziness
You should not take Viagra, Cialis or Levitra if :
- You are taking any nitrate based medicine
- Recently you have suffered heart attack
- You have low blood pressure
Viagra, Cialis and Levitra are available online on prescription. Now men dont have to worry about their sexual disabilities because of these products. Viagra, Cialis and Levitra are availble online on prescription at www.impotence-information.com. This site provides free consultation before buying these impotence products.
