A B C D E File G H I J K L M N O P Q R S T U V W X Y Z A B C D E F G H I J K L M N O P Q R S T U V W X Y Z How does this medication operate? What is going to it do for me?Injection Liquid. Sildenafil injection is normally offered by a Health care provider within a hospital or clinic. You will not keep it at home.Expenses of prescription medicines c