Carbamazepine
Transcript of Carbamazepine
Reactions 604 - 8 Jun 1996
SCarbamazepine
Hypogammaglobulinaemia and agranulocytosis:case report
Hypogammaglobulinaemia and agranulocytosis associatedwith the use of carbamazepine, occurred in a 63-year-old man.
The man had experienced a cerebral haemorrhagecomplicated by a grand mal seizure and had then takencarbamazepine 400mg twice daily. He also took lisinopril andatenolol to control his BP. Approximately 7 months after theepisode, he presented with anorexia, bodyweight loss, and acough. Haemophilus influenzae was identified in his sputumand tests showed panhypogammaglobulinaemia with absent Blymphocytes; at this time his granulocyte count was normal.
Lisinopril was substituted with amlodipine, and the dosageof carbamazepine was reduced to 100mg twice daily. By thefollowing month, the man had a fever, nausea, and a largeulcer on his lip; his WBC count was 1.4 x 109/L, with 0.5 x 109/Lgranulocytes. Carbamazepine was replaced by valproic acid.
The agranulocytosis was treated successfully with 3 days ofgranulocyte colony-stimulating factor therapy, and this wasfollowed by a resolution of the fever. The man was also treatedwith anti-infective agents. After approximately 3 months,mature B lymphocytes were detectable, and IgG, IgA, and IgMhad increased, but IgG2 was still reduced.
Author comment: ‘No pretreatment immunological resultswere available, but none the less it seems most likely that theadverse effects were associated with carbamazepine, as theydid not improve until this drug was withdrawn.’Spickett GP, et al. Hypogammaglobulinaemia with absent B lymphocytes andagranulocytosis after carbamazepine treatment. Journal of Neurology,Neurosurgery and Psychiatry 60: 459, Apr 1996 - England 800438621
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Reactions 8 Jun 1996 No. 6040114-9954/10/0604-0001/$14.95 Adis © 2010 Springer International Publishing AG. All rights reserved