Drug errors most often involve:

A. antitussives and analgesics
B. anti-inflammatories and antibiotics
C. antibiotics and analgesics
D. antipyretics and anti-inflammatories

c
Rationale: Drug errors most often involve antibiotics and analgesics. Many prescriptions are issued concerning the fighting of infections (antibiotics) and the relief of pain (analgesics), and this large amount helps to contribute to increased errors. The other choices involve anti-inflammatories, antipyretics, and antitussives, which are prescribed on a lesser scale.