A sleep-like state (unconsciousness) accompanied with varying degrees of analgesia (dulls the sense i.e. relieve pain).
Narcotics are used as a preanaesthetic in horse and in dogs.
Narcosis in Horse
- Chloral hydrate
- Increasing narcotic doses produces progressive depression of the cerebrum (mild to deep narcosis).
Narcosis in dogs:
Morphine and morphine substitutes
Dose: 5 mg/kg b.wt. SC
- Contraindicated in dogs suffering from shock, and in cats because it causes maniac state and tonic convulsions ending with death in large doses.