Case Reports |


Am J Dis Child. 1942;64(3):485-486. doi:10.1001/archpedi.1942.02010090087010.
Text Size: A A A
Published online

Little mention has been made of castor bean poisoning in the American medical literature. This bean is the brown mottled seed of the castor plant, Ricinus communis, from which castor oil is extracted. It is about one and one-half times the size of a lima bean. Although of tropical origin, the castor plant has frequently been transplanted to the temperate zones because of its ornamental foliage.

The castor bean, because of its poisonous constituent ricin, is a potent toxic agent. In human beings severe symptoms have resulted from inhaling the dust of the bean. This has been known to cause severe anaphylactoid reactions of the respiratory system in hypersensitive persons. More commonly, however, intoxication results from the inadvertent ingestion of the bean. Ricin is an extremely poisonous protein (phytalbumin) found in the seeds along with the oil. When commercially extracted, however, castor oil contains little or no ricin.



Sign In to Access Full Content

Don't have Access?

Register and get free email Table of Contents alerts, saved searches, PowerPoint downloads, CME quizzes, and more

Subscribe for full-text access to content from 1998 forward and a host of useful features

Activate your current subscription (AMA members and current subscribers)

Purchase Online Access to this article for 24 hours

First Page Preview

View Large
First page PDF preview





Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).
Submit a Comment


Some tools below are only available to our subscribers or users with an online account.

Sign In to Access Full Content

Related Content

Customize your page view by dragging & repositioning the boxes below.