Patients who take carbamazepine for a long time have been seen to respond less to muscle-relaxing drugs of the same type as cisatracurium. It is not known exactly how long-term carbamazepine affects cisatracurium itself. Even so, the muscle relaxation may wear off a little sooner than usual, and the anaesthetist may need to give cisatracurium at a higher infusion rate to keep the muscles relaxed.
Little or no effect is expected. You usually do not need to change anything, but still tell your doctor or pharmacist about every medicine you take.