Failure of Implanon contraception in a patient taking carbamazepin for epilepsia.
Until now, no pregnancies have been reported in association with the implantable hormonal contraceptive Implanon (Organon, Roseland, NJ, USA), resulting in a pearl index of 0. We present a 24-year-old patient who conceived despite the correct application of Implanon for one and a half year. The patient was concurrently taking carbamazepin for epilepsia. Special care should be taken to patients demanding hormonal contraceptives while taking carbamezepin. Even Implanon seems to possibly fail in this combination.
Schindlbeck
Christian
C
Frauenklinik, Ludwig-Maximilians-University, Maistrasse 11, 80337, Munich, Germany. Christian.Schindlbeck@med.uni-muenchen.de
Janni
Wolfgang
W
Friese
Klaus
K
D000328:Adult; D000927:Anticonvulsants / Q000009:adverse effects*; D002220:Carbamazepine / Q000009:adverse effects*; D003271:Contraceptive Agents, Female; D017135:Desogestrel; D004347:Drug Interactions; D004827:Epilepsy / Q000188:drug therapy*; D005260:Female; D006801:Humans; D011247:Pregnancy; D049168:Pregnancy, Unplanned
D000927:Anticonvulsants; D003271:Contraceptive Agents, Female; C044815:etonogestrel; D002220:Carbamazepine; D017135:Desogestrel