A 29-year-old woman with epilepsy on carbamazepine and lamotrigine dual therapy asks about CHC. What are the TWO separate drug interaction concerns?...

Question

A 29-year-old woman with epilepsy on carbamazepine and lamotrigine dual therapy asks about CHC. What are the TWO separate drug interaction concerns?

Accepted Answer

Carbamazepine is an enzyme inducer that reduces CHC efficacy, AND CHC reduces lamotrigine levels (increasing seizure risk). CHC is inadvisable with this combination

Answer

No interactions exist

Answer

Only carbamazepine interacts

Answer

Only lamotrigine interacts

Answer

Both drugs increase CHC efficacy

uk-dfsrh MCQ (SBA): Dual AED Interaction Carbamazepine Lamotrigine CHC

A 29-year-old woman with epilepsy on carbamazepine and lamotrigine dual therapy asks about CHC. What are the TWO separate drug interaction concerns?