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.

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.

Cialis Super Active is a generic drug, against erectile dysfunction, containing 20 mg of tadalafil. The tablets in this series have a gel inside. This form allows the active substance, Tadalafil, to immediately enter the blood, thus providing an immediate effect. The result from the Cialis Super Active tablets appears after 5 minutes! The action lasts for two days. The drug is safe and has virtually no contraindications.