Antiviral agents in dentistry are described in detail. All topics covered in this chapter are given in a box in the beginning of the chapter. Salient features of each topic are given in 18 tables for easy learning. Emergency drugs, management of emergencies, analgesic, anticonvulsant, oxygen, epinephrine are described in detail. List of emergency drugs is given in a box. Different clinical conditions for which emergency drugs are being used given in tables. 10 references are given at the end of the chapter for further reading.