Sildenafil Citrate and Vardenafil are the components of impotence medications generic Viagra and Levitra correspondingly. Both of them belong to the PDE-5 inhibitors and are, at the time of this writing, the best ED treatments.
How do Sildenafil Citrate and Vardenafil act?
Both of them work in almost the same way - they "block" the PDE-5 ferment, which increases production of a cGMP; the higher levels of the cGMP help the soft muscles of the penile arteries to relax, which results in better blood flow to the penis. This leads to an easier to achieve, stronger and longer-lasting erection.
What is the difference between Sildenafil Citrate and Vardenafil?
Background: Viagra (Sildenafil Citrate) got the US Food and Drugs Administration approval in 1998 and is the most known erectile dysfunction synthetic treatment. Levitra (Vardenafil) was approved by the FDA in 2003, and it is gaining popularity pretty quickly.
Effect: Viagra works within an hour after taking, while Levitra will start working from 15 minutes to an hour; the effect of Viagra lasts for up to four hours and Levitra's for up to five hours.
Side effects: as all pharmaceutical drugs, both Viagra and Levitra can cause side effects; in 97% of the cases side effects are mild.
Success rate: there is no noticeable difference in the success rate of both drugs - they work in 70% to 80% of the cases. Unfortunately a universal ED treatment that works 100% for all does not exist.
Cost: there is no considerable difference in the price per pill for Viagra and Levitra.
Food and alcohol: while Viagra works better and faster on an empty stomach, Levitra works regardless of the food consumption. The heavy consumption of alcohol while taking Viagra and Levitra should be avoided since it might cause additional side effects.
Prescription: in most countries both Viagra and Levitra are prescription drugs.
Dosage: Viagra is manufactured in 25 mg, 50 mg, and 100 mg pills. Most physicians will initially prescribe the 50mg tablets, and then adjust the dosage. Levitra is sold in 5 mg, 10 mg, and 20 mg tablets and the 10 mg ones are the initial dosage.
Is there a difference between Viagra and Levitra and their generic analogs?
Sildenafil Citrate is the active ingredient of Viagra and generic Viagra. Vardenafil is the main ingredient of Levitra and generic Levitra. What is the difference between the brand medicines and the generics then?
The generics work in the same way as the brand medicines, they are controlled by the regulating authorities, they have to meet the same high-standards, they are as safe and they are much cheaper.
The brand names Viagra and Levitra can be used only by Pfizer and Bayer AG, GSK, and SP respectively and all other Sildenafil and Vardenafil based medications are known as generic Viagra and Levitra.
