Finding the first among these equals is hard, as far as quality is concerned. Viagra, Cialis and Levitra are currently the three most popular FDA approved oral drugs prescribed by doctors for erectile dysfunction. Though Pfizer’s Viagra was the first of its kind, and the very brand ensures credibility, Cialis and Levitra – which followed later – have been found to be equally effective and reliable.

However, when it comes to the time for which the effectiveness lasts, Cialis takes the vote. When Viagra lasts for around 4 hours, Levitra for 24 hours and Cialis lasts a whole 36 hours. But as far as the quality is considered, the three drugs are on a par.

There has been a flood of generic Viagra in the market following the popularity of Viagra. From those with similar sounding names and similar shape, to ones with an herbal or organic tag to the name ‘Viagra’- there has been lots of new additions appearing in the market, very few of which are medically approved.

However, Cialis and Levitra fall into the same category of Viagra, though the active ingredient used in them is different. All three of them work by blocking the enzyme PDE5 and increasing the blood flow to the penis.

Viagra is available in doses of 25, 50 and 100mg whereas Cialis and Levitra are available in lower doses of 5, 10 and 20 mg. With the number of brands and dosages to choose from, always make sure you buy your medication from a reliable source, after consulting a doctor. For a free consultation with a UK GP, please contact us at Menscare.