In vitro diagnostic reagents how to distinguish between drug class and medical device class

1. can be distinguished by the approval number or registration number

****** drug (quasi or into) word ***** belongs to the class of drugs

****** drug supervision equipment (quasi or into) word ***** belongs to the class of medical devices

2. can be distinguished by the use or principle

Release immunization reagents and diagnostic reagents used for blood source screening (such as sold to the blood station) belong to the class of drugs, the other belongs to the class of medical devices.