Cialis Critical Analysis
1. Why was Viagra so successful? Viagra’s success was due to: * Viagra was the first orally taken drug that addressed ED. Other alternatives that had already existed in the market were: penile implants, vacuum pumps , ED injection and urethra suppository, none of them were really user friendly. * Viagra was the first affordable solution for ED, its retail price was $10/dose, whereas Caverject […]