Summary
The concentration of verapamil in milk and serum was determined in samples taken within the same hour 3–5 days after delivery of a 25 year old women treated with verapamil (Isoptin®) 240 mg daily for paroxysmal supraventricular tachycardia. The average concentration of verapamil in milk was found to be 23% of that in serum, and the total excretion in milk was less than 0,01% of the administered dose.
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Andersen, H.J. Excretion of verapamil in human milk. Eur J Clin Pharmacol 25, 279–280 (1983). https://doi.org/10.1007/BF00543804
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DOI: https://doi.org/10.1007/BF00543804