Viagra is a brand name for sildenafil citrate which is primarily used by men to treat erection conditions like impotence or erectile dysfunction. Viagra is the most widely used medicine against ED due to its high recognition and stable effect. In Canada Viagra can be ordered without the prescription from a doctor.

Cialis is a brand name for tadalafil which is a very effective medicine against ED, also known as erectile dysfunction - a condition when a man can not achieve stiff enough erection to be able to have sex. Cialis is also called a "weekend pill" due to its long-lasting duration - up to 48 hours. Cialis is a prescription drug in US and UK.

Viagra Professonal is the strongest version of Viagra available in Canada. Viagra Professional contains sildenafil citrate which was greatly improved to deliver top performance to those suffering erectile dysfunction. Viagra Professional lasts longer and has a more stable and stronger effect that ordinary Viagra.

Cialis Professional is the most powerful variation of Cialis that can be found in Canada. Tadalafil in Cialis Professional has a special formulation allowing it to bring the treatment of erectile dysfunction in men to the next level - expect best performance, most long-lasting duration and uncomparable experience.

Viagra Super Active+ is the totally new generation of drugs designed to treat erectile dysfunction and impotence in men. Besides the improvement of erection, Viagra Super Active+ increases the generation of sperm, has reduced start-up time, stimulates the production of human growth hormone (HGH).

Cialis Super Active+ is the next generation drug for the treatment of ED in men. Cialis Super Active+ is by far the most advanced type of tadalafil available in Canada and US. The start-up time is only 5-7 minutes and the effect may last up to 55 hours. Cialis Super Active+ brings erectile dysfunction treatment to the top level.

Brand Viara (sildenafil citrate) is the original version of the most popular drug against impotence. Brand Viagra is manufactured by the pharmaceutical company Pfizer. Brand Viagra was approved by FDA and is sold in US only to patients with prescription while in Canada it can be sold without rx.

Brand Cialis is an original product containing tadalafil and being produced by the pharma company Eli Lilly. Brand Cialis has several advantages in comparison to Viagra which include fewer side-effects and long-lasting duration of the drug - up to 36 hours. Brand Cialis is a prescription medicine in US but not in Canada.