TY - JOUR T1 - Measuring Multiple Etanercept Levels in the Breast Milk of a Nursing Mother with Rheumatoid Arthritis JF - The Journal of Rheumatology JO - J Rheumatol SP - 1551 LP - 1551 DO - 10.3899/jrheum.100077 VL - 37 IS - 7 AU - STEPHANIE KEELING AU - GERT-JAN WOLBINK Y1 - 2010/07/01 UR - http://www.jrheum.org/content/37/7/1551.1.abstract N2 - To the Editor:A recent report of declining etanercept levels in infant serum postpartum and negligible amounts in breast milk suggested that etanercept may be a safe treatment option for postpartum patients with rheumatoid arthritis (RA)1. Limited data exist detailing breast milk concentrations of etanercept at 25 mg and 50 mg doses over a longer period of time. We describe levels of etanercept in breast milk of an RA nursing mother performed at her request.A 34-year-old etanercept-naive mother with RA delivered a healthy 3.4 kilogram female infant full-term with no abnormalities or complications, maintaining remission … Address correspondence to Dr. Keeling; E-mail: stephanie.keeling{at}ualberta.ca ER -