The following tables outline some of the determinants of the distant effects of epidurally administered drugs:

1. Factors affecting plasma level of epidurally administered narcotics.

2. Achieved plasma levels of epidurally administered narcotics.

3. Side-effects of epidural narcotics.

4. Toxic levels of local anaesthetics.

5. Comparative CNS and CVS toxicity of local anaesthetics.

6. Factors affecting plasma level of epidurally administered local anaesthetics.

7. Fetal effects of epidurally administered drugs.