Exposure to thiopurine drugs through breast milk is low based on metabolite concentrations in mother-infant pairs

¹Department of Clinical Pharmacology, Christchurch Hospital and Christchurch School of Medicine, Christchurch, New Zealand

²Department of Gastroenterology, Christchurch Hospital and Christchurch School of Medicine, Christchurch, New Zealand

³Department of Medicine, Christchurch Hospital and Christchurch School of Medicine, Christchurch, New Zealand

⁴Department of Pathology, Christchurch Hospital and Christchurch School of Medicine, Christchurch, New Zealand