Final answer:
Lopinavir/Ritanovir (Kaletra) belongs to the pharmacologic class of protease inhibitors, which block the processing of viral proteins and prevent viral maturation.
Step-by-step explanation:
The pharmacologic class of Lopinavir/Ritanovir (Kaletra) is protease inhibitors. Protease inhibitors block the processing of viral proteins and prevent viral maturation. They are used in the treatment of HIV, as well as other viral types such as hepatitis C.