Vardenafil for Treating Erectile Dysfunction

Vardenafil is sold under the brand name Levitra. Vardenafil is an oral drug used for treating erectile dysfunction or impotence - the inability to attain or maintain penile erection for penetration. Penile erection is a hydraulic effect induced by rush of blood in the soft penile tissue. Spontaneously the blood vessels carrying blood away from the penis narrow down restricting removal of blood from the penis. Basically penile erection occurs due to two different mechanisms involving sexual stimulation: either by touch or emotional stimuli. Sexual stimulation sends signals to the brain for a release of nitric oxide in the penis. The nitric oxide, in turn, activates the process of production of cGMP, an enzyme that controls the increase and decrease of penile blood vessels for allowing inflow and restricting outflow of blood from the penis. One of the forms of an enzyme known as phophodiesterase (PDE5) causes cGMP to degrade, which results in erectile dysfunction. Vardenafil, being a PDE5 inhibitor, allows the cGMP to persist for a longer period to relax the penile arteries allowing the blood to enter the sponge like bodies in the penis. Vardenafil was the second drug after Viagra to be approved by the FDA to treat erectile dysfunction.

The reliability of vardenafil has been researched extensively. More than seventy percent of people tested achieved successful completion of intercourse. The commonly recommended dose is 10mg per day and is required to be taken less than 60 minutes before intercourse. However, men above 65 years or above may start with a lower dose.

You can buy vardenafil on producing a valid prescription at a local prescription online pharmacy. However, there are many online pharmacies that sell generic vardenafil on the Internet and will write an online prescription for you. Online pharmacies have brought a paradigm change in the distribution structure and added in a new proportion to the way medication is dispensed.

Online pharmacies are just like any local drugstore. The difference is only in how medicines are requested and received. Many people find it convenient to buy vardenafil over the Internet instead of traveling to a community pharmacy. Some online pharmacies may not require a prescription for vardenafil since in many countries prescriptions are not required.

Vardenafil is a safe drug but should not be taken by men who are already taking nitrates in any form for treatment of heart conditions including angina pectoris. Combining it with nitrates make provoke abnormally low blood pressure. A smaller dose is recommended for people being treated with erythromycin, HIV protease inhibitors and anti-fungal drugs.

Side effects include flushing, stomach upsets, nasal discharge and headaches. If they occur, the side effects are of mild intensity and do not cause problem. Normally these disappear as the body gets used to the drug. Vardenafil is a safe drug and generally well tolerated when taken in recommended doses.