"The Book of Comfrey"

CITATIONS

[1]  What are the main types of drug interactions?

https://www.google.com/search?client=opera&q=drug+interactions+info&sourceid=opera&ie=UTF-8&oe=UTF-8 

(Visited 12/27/202) 

There are three types of drug interactions:

Aug 4, 2021  National Institutes of Health (.gov)  https://hivinfo.nih.gov › understanding-hiv › fact-sheets

This is Google's cache of https://hivinfo.nih.gov/understanding-hiv/fact-sheets/what-drug-interaction. It is a snapshot of the page as it appeared on Dec 27, 2023 13:15:25 GMT. The current page could have changed in the meantime. 

[2]  Comfrey Information | Mount Sinai - New York

 https://www.google.com/search?client=opera&q=who+should+not+use+comfrey&sourceid=opera&ie=UTF-8&oe=UTF-8

      (Visited 12/27/23)

Plant Description · ‎How To Take It · ‎Precautions

This is Google's cache of https://www.mountsinai.org/health-library/herb/comfrey. It is a snapshot of the page as it appeared on Dec 27, 2023 11:24:29 GMT. The current page could have changed in the meantime.

[3] Comfrey: A Clinical Overview - By  Christiane Staiger   

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3491633/

(Visited 12/27/202)