Levothyroxine: a review of clinical and quality considerations

MHRA review of levothyroxine products in response to concerns about potential inconsistencies of different products.


Levothyroxine tablet products: a review of clinical and quality considerations

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The review started in January 2011 and MHRA reviewed medical and scientific literature to assess:

  • whether there could be differences in the bioavailability (extent/rate of absorption) of levothyroxine between different tablet products and/or batches
  • what clinical implications this may have
  • whether additional controls were needed
Published 7 January 2013