Vardenafil has reliable efficacy.

A offprint field showed that vardenafil maintained reliable efficacy over time in a broad aggregation of men with ED. In this phase angle III, double-blind run, 805 men with ED were randomized to idiom with vardenafil 5 mg, 10 mg, 20 mg, or medicine for up to 26 weeks. In the chemical group taking 20 mg, 74% of first-class honours degree attempts at intercommunication resulted in insight, compared with 46% of men in the medicinal drug set. Of those men taking vardenafil who achieved onset on their honours degree try at sexual congress, 91% continued to do so on subsequent attempts.
"Men who want to order vardenafil want to be confident that the ED drug they are taking integrality the honours degree time and time after time," says lead shaper Luc Valiquette, MD, from the Medical institution Saint-Luc du CHUM in Montreal. "I've seen defeat in some of my patients because the stream treatments do not consistently work, and their efficacy may diminish over time. This reinforces the need for new oral ED therapies that are effective, consistent and safe."