These include the serial number, product code, batch designation, and expiry date. All details are printed legibly on the package and incorporated into a QR code. Prior to sale, pharmacists must scan the code so that a networked system can compare the markings with data held in a central register.
If the comparison shows that a medicine with the markings has already been sold, the system raises an alarm and the incident is investigated. In the same way, wholesalers like PHOENIX carry out spot checks on their product range to prevent falsified medicines from reaching pharmacies in the first place.