Effect of pregnancy on the pharmacokinetics of caffeine
Abstract
Individual variation in the half-life of caffeine in the body was measured by HPLC analysis of saliva samples. The mean for adult males and non-pregnant females was 3.4 h (range 2-5 h, n = 25), and 8.3 h (range 3-16 h, n = 57) for pregnant women. After delivery, in most cases the values returned to normal within one month. The individual values could not be correlated with age, weight or consumption of coffee. Women drinking large quantities of coffee should be aware of the side effects of coffee during pregnancy, as they may occur at a lower rate of consumption than in the non-pregnant state.
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The half-life of caffeine is on average 8.3 h longer during pregnancy and may be as much as 16 h longer than usual.
“The half-life of caffeine is on average 8.3 h longer during pregnancy and may be as much as 16 h longer than usual (60, 61).”
From The Safety of Ingested Caffeine: A Comprehensive Review (2017) · cites this paper as [60]
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- Authors
- Knutti, R., Rothweiler, H., & Schlatter, C.
- Affiliations
- University of Zurich (CH)
- Venue
- European Journal of Clinical Pharmacology
- Published
- 1981
- Volume
- 21
- Issue
- 2
- Pages
- 121-126
- ISSN
- 0031-6970 (ISSN-L)
- 1432-1041
- OpenAlex
- W1992709483
- Cited by
- 168
- References
- 22
- Citations by year
- 2026: 2 · 2025: 7 · 2024: 9 · 2023: 6 · 2022: 4 · 2021: 6 · 2020: 10 · 2019: 3 · 2018: 3 · 2017: 5 · 2016: 2 · 2015: 9 · 2014: 3 · 2013: 7 · 2012: 4
- FWCI
- 5.35
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- European Journal of Clinical Pharmacology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Pharmacology › Coffee research and impacts
- Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Pharmacogenetics and Drug Metabolism
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Pregnancy and Medication Impact
- Keywords
- caffeine, pregnancy, pharmacokinetics, caffeine half-life, saliva, postpartum recovery, coffee consumption, interindividual variability
- MeSH terms
- Adult, Caffeine, Female, Half-Life, Humans, Kinetics, Male, Pregnancy, Smoking
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