The Perfect Drug?

It should act rapidly within one arm-brain circulation.

Recovery should be quick and complete with no hangover effect

It should provoke no excitatory phenomena

Analgesic properties are advantageous

Respiratory and cardiovascular effects should be minimal

It should not interact with other anaesthetic agents

Hypersensitivity reactions are not ideal

There should be no post-op phenomena, e.g. nausea or hallucinations.

The perfect drug does not exist.

(Taken from my textbook)