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Drugs and Lactation Database (LactMed®) [Internet]. Bethesda (MD): National Institute of Child Health and Human Development; 2006-.
Drug Levels and Effects
Summary of Use during Lactation
The bark, stems and leaves of European buckthorn (Rhamnus catharticus), alder buckthorn (Rhamnus frangula) and California buckthorn (Rhamnus purshiana) contain anthraquinones that have potent cathartic properties. (Do not confuse these products with sea buckthorn [Hippophae rhamnoides]). Maternal intake of the cathartic buckthorn products might cause loose stools in breastfed infants and their use should be avoided.[1-3]
Dietary supplements do not require extensive pre-marketing approval from the U.S. Food and Drug Administration. Manufacturers are responsible to ensure the safety, but do not need to prove the safety and effectiveness of dietary supplements before they are marketed. Dietary supplements may contain multiple ingredients, and differences are often found between labeled and actual ingredients or their amounts. A manufacturer may contract with an independent organization to verify the quality of a product or its ingredients, but that does not certify the safety or effectiveness of a product. Because of the above issues, clinical testing results on one product may not be applicable to other products. More detailed information about dietary supplements is available elsewhere on the LactMed Web site.
Drug Levels
No published information was found as of the revision date on European buckthorn or alder buckthorn. However, the chemical constituents of these products is similar to that of cascara sagrada (California buckthorn).
Maternal Levels. After administration of 65 mg of cascara sagrada as cascara fluidextract, cascara was qualitatively detected in the breastmilk of 5 of 10 women collected over 20 hours.[4] The sensitivity of the assay was about 1100 mg/L of cascara.
Infant Levels. Relevant published information was not found as of the revision date.
Effects in Breastfed Infants
In 2 uncontrolled studies, a total of 10 of 22 breastfed infants appeared to have loose stools after administration of 65 mg of cascara as cascara fluidextract to their mothers.[4]
No cases of diarrhea were observed among the breastfed infants of 142 mothers who received 400 mg of cascara extract on day 3 postpartum.[5]
Effects on Lactation and Breastmilk
Relevant published information was not found as of the revision date.
Alternate Drugs to Consider
References
- 1.
- Lewis JH, Weingold AB., Committee of FDA-Related Matters American College of Gastroenterology. The use of gastrointestinal drugs during pregnancy and lactation. Am J Gastroenterol. 1985;80:912–23. [PubMed: 2864852]
- 2.
- Hardy ML. Women's health series: Herbs of special interest to women. J Am Pharm Assoc (Wash). 2000;40:234–42. [PubMed: 10730024]
- 3.
- Kopec K. Herbal medications and breastfeeding. J Hum Lact. 1999;15:157–61. [PubMed: 10578793]
- 4.
- Tyson RM, Shrader EA, Perlman HH. Drugs transmitted through breast milk. Part I: Laxatives. J Pediatr. 1937;11:824–32. [CrossRef]
- 5.
- Duncan AS. Standardized senna as a laxative in the puerperium. A clinical assessment. Br Med J. 1957;1:439–41. [PMC free article: PMC1974525] [PubMed: 13396280]
Substance Identification
Substance Name
Buckthorn
Scientific Name
Rhamnus catharticus Rhamnus frangula Rhamnus purshiana
Drug Class
Breast Feeding
Cathartics
Complementary Therapies
Gastrointestinal Agents
Phytotherapy
Plants, Medicinal
Disclaimer: Information presented in this database is not meant as a substitute for professional judgment. You should consult your healthcare provider for breastfeeding advice related to your particular situation. The U.S. government does not warrant or assume any liability or responsibility for the accuracy or completeness of the information on this Site.
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