Drug Levels and Effects:

Summary of Use during Lactation:

Castor(Ricinus communis) beans contain triglycerides, mostly consisting of ricinoleic acid esters, and small amounts of the toxic ricin and ricine. Pressing of the beans producescastoroiland purification of theoileliminates the ricin and ricine.Castoroilis a strong stimulant laxative.Castorbeans, which are extremely toxic, purportedly reduce milk flow,[1] but a poultice of castor leaves is a purported galactogogue.[2][3] No scientifically valid clinical trials support either of these uses. Galactogogues should never replace evaluation and counseling on modifiable factors that affect milk production.[4] No data exist on the excretion of any components of the castor plant orcastoroilinto breastmilk or on their safety and efficacy in nursing mothers or infants. However, little of the active ricinoleic acid is thought to be absorbed from the intestine. Because of a lack of information, other laxatives may be preferred in nursing mothers.

In traditional Indian culture,castoroilhas been administered to newborn infants during the first 2 to 3 days of life, often resulting in adverse effects.[5][6] In some parts of India,castoroilis also reportedly applied to the breasts to stimulate lactation.[3]Administration ofcastoroilto newborns is dangerous and should be avoided.

Dietary supplements do not require extensive pre-marketing approval from the US 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 informationabout dietary supplementsis available elsewhere on the LactMed Web site.

Drug Levels:

Maternal Levels.

Relevant published information was not found as of the revision date.

Infant Levels.

Relevant published information was not found as of the revision date.

Effects in Breastfed Infants:

In rural India,castoroilhas been traditionally given to infants during the first 2 to 3 days of life to clear the intestine of meconium. This practice can result in paralytic ileus and aspiration pneumonia.[5] Severe hypoalbuminemia was also reported in a 1.5-month-old infant whose grandmother gave himcastoroildaily from the fifth day of life, resulting in diarrhea and malnutrition.[6]

Possible Effects on Lactation:

Relevant published information was not found as of the revision date.

Alternate Drugs to Consider:

Bisacodyl,Magnesium Hydroxide,Senna


1. Hardy ML. Women's health series: herbs of special interest to women. J Am Pharm Assoc (Wash). 2000;40:234-42. PMID:10730024
2. Yarnell E. Botanical medicine in pregnancy and lactation. Altern Complement Ther. 1997;3 (April):93-100.
3. Rasiya Beegam A, Nayar TS. Plants used for natal healthcare in folk medicine of Kerala, India. Indian J Tradit Knowl. 2011;10:523-7.
4. The Academy of Breastfeeding Medicine Protocol Committee. ABM clinical protocol #9: use of galactogogues in initiating or augmenting the rate of maternal milk secretion (First revision January 2011). Breastfeed Med. 2011;6:41-9. PMID:21332371
5. Benakappa DG, Raju M, Shivananda, Benakappa AD. Breast-feeding practices in rural Karnataka (India) with special reference to lactation failure. Acta Paediatr Jpn. 1989;31:391-8. PMID:2514560
6. Jayaprakash DG, Raghu Raman TS, Singh D, Raja LN. Laxative induced hypoalbuminemia. Indian Pediatr. 1995;32:1037-8.

Substance Identification:

Substance Name:


Scientific Name:

Ricinus communis

CAS Registry Number:


Drug Class:

  • Cathartics

  • Complementary Therapies

  • Phytotherapy

  • Plants, Medicinal

  • Administrative Information:

    LactMed Record Number:


    Last Revision Date:

    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.