Global Sildenafil Market, By Product Type (Branded and Generics), Application (Peripheral Vasodilator and Erectile Dysfunction), End-Users (Clinics, Hospitals, and Others), Distribution Channel (Hospital Pharmacy, Retail Pharmacy, Online Pharmacy, Others), Country (U.S., Canada, Mexico, Brazil, Argentina, Peru, Rest of South America, Germany, France, U.K., Netherlands, Switzerland, Belgium, Russia, Italy, Spain, Turkey, Hungary, Lithuania, Austria, Ireland, Norway, Poland, Rest of Europe, China, Japan, India, South Korea, Singapore, Malaysia, Australia, Thailand, Indonesia, Philippines, Vietnam, Rest of Asia-Pacific, Saudi Arabia, U.A.E, Egypt, Israel, Kuwait, South Africa, Rest of Middle East and Africa) Industry Trends and Forecast to 2028