comfrey
General
Complementary/Alternative Medicine: This monograph describes a natural or herbal product that is not subject to FDA guidelines for medicines. Patients and clinicians are advised to read package labels carefully to ensure safe and efficacious use.
Pronunciation: 
kuhm-free
To hear audio pronunciation of this topic, purchase a subscription or log in.Trade Name(s)
- Ass ear
 - black root
 - blackwort
 - bruisewort, Consolidae radix
 - consound
 - gum plant
 - healing herb, knitback
 - knitbone
 - salsify
 - slippery root
 - Symphitum officinale
 - Symphitum radix
 - wallwort
 
Ther. Class.
wound/ulcer/decubiti healing agent
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Citation
Vallerand, April Hazard., et al. "Comfrey." Davis's Drug Guide, 19th ed., F.A. Davis Company, 2025. Emergency Central, emergency.unboundmedicine.com/emergency/view/Davis-Drug-Guide/51174/all/comfrey. 
Vallerand AHA, Sanoski CAC,  . Comfrey. Davis's Drug Guide. F.A. Davis Company; 2025. https://emergency.unboundmedicine.com/emergency/view/Davis-Drug-Guide/51174/all/comfrey. Accessed November 4, 2025.
Vallerand, A. H., Sanoski, C. A., & ,  (2025). Comfrey. In Davis's Drug Guide (19th ed.). F.A. Davis Company. https://emergency.unboundmedicine.com/emergency/view/Davis-Drug-Guide/51174/all/comfrey
Vallerand AHA, Sanoski CAC,  . Comfrey [Internet]. In: Davis's Drug Guide. F.A. Davis Company; 2025. [cited 2025 November 04]. Available from: https://emergency.unboundmedicine.com/emergency/view/Davis-Drug-Guide/51174/all/comfrey.
* Article titles in AMA citation format should be in sentence-case
TY  -  ELEC
T1  -  comfrey
ID  -  51174
A1  -  Sanoski,Cynthia A,
AU  -  Vallerand,April Hazard,
AU  -  ,,
BT  -  Davis's Drug Guide
UR  -  https://emergency.unboundmedicine.com/emergency/view/Davis-Drug-Guide/51174/all/comfrey
PB  -  F.A. Davis Company
ET  -  19
DB  -  Emergency Central
DP  -  Unbound Medicine
ER  -  

Davis's Drug Guide

