Explain about anaesthetics with their types.

Explanation

(i) Local anaesthetics: It causes loss of sensation in the area in which it is applied without losing consciousness. They block pain perception that is transmitted via peripheral nerve fibres to the brain.
Example : Procaine , Li do caine . (ii) General anaesthetics : They cause a controlled and reversible loss of consciousness by affecting central nervous system .
Example : Propofol , Isoflurane .
They are often used for major surgical procedures .