Is leflunomide (LEF) safe for breastfeeding women with rheumatoid arthritis (RA)?

Updated: May 11, 2018
  • Author: Katherine K Temprano, MD; Chief Editor: Christine Isaacs, MD  more...
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Leflunomide should not be used during breastfeeding. Leflunomide is excreted into animal milk; whether it is excreted into human milk is unknown, [54]

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