Antiepileptics

Introductory text within BNF

Specific knowledge:
Carbamazepine
Phenytoin
Valproate

what about that pesky p450?

Inhibitors - i.e. ↓ clearance
(effect often seen quickly)
Inducers - i.e. ↑ clearance = ↓ drug levels e.g. warfarin
Valproate Carbemazepine
Phenobarb
Phenytoin

in pregnancy