Dwayne has recently started on carbamazepine to treat seizures. He comes to see you and you note that while his carbamazepine levels had been in the therapeutic range, they are now low. The possible cause for the low carbamazepine levels include:

Question

Quizplus · Accepted Answer

Carbamazepine is known to auto-induce its own metabolism, resulting in lower levels even with good compliance. Insomnia is a potential side effect of carbamazepine, but it is not a reason why carbamazepine levels are low. Similarly, if Dwayne was not originally prescribed the correct amount of carbamazepine, that could lead to subtherapeutic levels, but it would not explain why his levels are low now. It is also premature to conclude that carbamazepine is not the right antiseizure medication for Dwayne based solely on low levels without further evaluation.

Dwayne Has Recently Started on Carbamazepine to Treat Seizures