Anaesthetic vs analgesic

[Dan Levi]

Hi guys, studying for pharmacology, I can't understand something:

If halothane is causing a fast anaesthesia- lack of consciousness and pain, why do we need to supplement it with analgesics, or anti emetics, or what ever.

in other words: if you depress the CNS of the person, why does he still feel pain, vomit and such?

[adamcollin]

Halothane itself is an analgesic given to the patient to reduce pain.