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J Anal Toxicol. 2016 Jul;40(6):473-7. doi: 10.1093/jat/bkw034. Epub 2016 Apr 29.

Transfer of Nicotine, Cotinine and Caffeine Into Breast Milk in a Smoker Mother Consuming Caffeinated Drinks.

Author information

1
Department of Therapeutic Research and Medicines Evaluation, Istituto Superiore di Sanitá, Viale Regina Elena 299, Rome 00161, Italy.
2
Red de Salud Materno-Infantil y del Desarrollo (SAMID), Programa RETICS, Instituto Carlos III, Madrid, Spain Neonatal Unit, Hospital Universitario 12 de Octubre, Madrid, Spain.
3
Grup de Recerca Infància i Entorn (GRIE), Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain Departament de Pediatria, Obstetrícia i Ginecologia i Medicina Preventiva, Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain.
4
Red de Salud Materno-Infantil y del Desarrollo (SAMID), Programa RETICS, Instituto Carlos III, Madrid, Spain Grup de Recerca Infància i Entorn (GRIE), Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain Departament de Pediatria, Obstetrícia i Ginecologia i Medicina Preventiva, Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain.
5
Department of Therapeutic Research and Medicines Evaluation, Istituto Superiore di Sanitá, Viale Regina Elena 299, Rome 00161, Italy simona.pichini@iss.it.

Abstract

Although the habits of cigarette smoking and associated coffee drinking are generally ceased during pregnancy, they are often reinitiated after delivery when the breastfeeding period starts. This is a case report of a 32-year-old lactating smoker mother who consumed caffeinated drinks and who agreed to donate breast milk after smoking one cigarette (containing 0.6 mg of nicotine) and drinking one cup of espresso (containing 80 mg of caffeine) for an investigation of the excretion of nicotine, its major metabolite cotinine and caffeine into the breast milk and subsequent transfer to the infant. Nicotine and its metabolite cotinine peaked in the breast milk at 0.5 h after the cigarette smoking, and caffeine peaked 2 h after drinking coffee. Moreover, the nicotine disappeared from the milk by 3 h, the caffeine required 24 h and the cotinine required 72 h. The relative infant doses of caffeine, nicotine and cotinine were found to be 8.9, 12.8 and 77.6%, respectively. In the light of these results obtained after the mother smoked only one cigarette and consumed one cup of espresso, if a lactating mother cannot refrain from smoking cigarettes, she should extend the time between the last smoked cigarette and breastfeeding to at least 3 h when the nicotine has been completely eliminated from the milk. Similarly, nursing mothers should also drink coffee sparingly and immediately after nursing and avoid coffee or caffeinated beverages for at least 4 h prior to breastfeeding to minimize the infant's exposure to caffeine.

PMID:
27129353
DOI:
10.1093/jat/bkw034
[Indexed for MEDLINE]

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