Tranexamic acid-induced fixed drug eruption confirmed by the drug lymphocyte transformation test

Kenji Kawaguchi1, Shotaro Kinoshita1, Motonao Ishikawa2

  • 1Postgraduate Clinical Training Center Tokyo Women's medical University Medical Center East Tokyo Japan.

Clinical Case Reports
|December 3, 2019
PubMed

Insights

Multiple fixed drug eruptions caused by tranexamic acid were identified using the lymphocyte transformation test (LTT). Diagnosis was complicated by concurrent drug-induced aseptic meningitis from loxoprofen.

Area of Science:

  • Pharmacology
  • Dermatology
  • Immunology

Background:

  • Fixed drug eruption (FDE) is a specific type of adverse drug reaction.
  • Tranexamic acid is increasingly used for various medical conditions.
  • Drug-induced aseptic meningitis is a known neurological side effect of some medications.

Observation:

  • A patient presented with recurrent, well-demarcated skin lesions consistent with FDE.
  • The patient was also experiencing symptoms suggestive of aseptic meningitis.
  • Loxoprofen was identified as a potential cause of aseptic meningitis.

Findings:

  • The lymphocyte transformation test (LTT) confirmed tranexamic acid as the causative agent for the multiple fixed drug eruptions.
  • This represents the first reported case of FDE specifically linked to tranexamic acid.
  • The simultaneous occurrence of FDE and drug-induced aseptic meningitis presented a diagnostic challenge.

Implications:

  • Highlights the potential for tranexamic acid to cause FDE, necessitating increased clinical awareness.
  • Emphasizes the importance of considering multiple concurrent adverse drug reactions in complex cases.
  • Suggests the utility of LTT in diagnosing FDE when drug causality is uncertain.