Pregnancy during TNFalpha antagonist therapy: beware the rifampin-oral contraceptive interaction. Report of two cases

Joint Bone Spine. 2010 May;77(3):268-70. doi: 10.1016/j.jbspin.2010.02.001. Epub 2010 May 5.

Abstract

We report two cases of pregnancy in patients taking TNFalpha antagonists for chronic inflammatory joint disease. A factor in both pregnancies was the use of rifampin concomitantly with a combined oral contraceptive. Both patients were taking rifampin and isoniazid for tuberculosis prophylaxis in compliance with French recommendations for patients with positive intradermal tuberculin tests who are scheduled to receive biotherapeutic agents.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Antirheumatic Agents / adverse effects*
  • Antitubercular Agents / adverse effects*
  • Contraceptives, Oral / adverse effects*
  • Drug Interactions
  • Female
  • Humans
  • Immunocompromised Host
  • Isoniazid / adverse effects
  • Pregnancy
  • Rifampin / adverse effects*
  • Spondylitis, Ankylosing / drug therapy*
  • Spondylitis, Ankylosing / immunology
  • Tuberculosis, Pulmonary / immunology
  • Tuberculosis, Pulmonary / prevention & control*
  • Tumor Necrosis Factor-alpha / antagonists & inhibitors

Substances

  • Antirheumatic Agents
  • Antitubercular Agents
  • Contraceptives, Oral
  • Tumor Necrosis Factor-alpha
  • Isoniazid
  • Rifampin