Vials are a dose form commonly used for supply to healthcare professionals for delivery to the patient, vials are almost always Sterile either directly filled under Aseptic conditions or sterilised after filling throughTerminal Sterilisation. Vials are also sometimes taken through a Lyophilization process for drug stability before being made up at point of use especially for biologics or drugs that are unstable in liquid form. Vials are typically made up of 3 main parts: