Slippery Elm - Mustargen (Mechlorethamine) Interaction
Herbal: Slippery Elm
Also Known As: Indian Elm, Moose Elm, Olmo Americano, Orme, Orme Gras, Orme Rouge, Orme Roux, Red Elm, Sweet Elm, Ulmus rubra
Drug: Mechlorethamine
Brand names:
Mustargen

Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
May 04, 2025
Interaction Details
Mechlorethamine is classified as belonging to the following category: Oral Drugs
Theoretically, slippery elm may slow the absorption and reduce serum levels of oral drugs.
Slippery elm inner bark contains mucilage, which may interfere with the absorption of orally administered drugs.
Interaction Rating
Likelihood of Occurrence
PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists
References
- Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.
Slippery Elm Overview

Mechlorethamine Overview
-
Mechlorethamine is used to treat Hodgkin's lymphoma (Hodgkin's disease) and certain types of non-Hodgkin's lymphoma (types of cancer that begin in a type of white blood cells that normally fights infection); mycosis fungoides (a type of cancer of the immune system that first appear as skin rashes); certain types of leukemia (cancer of the white blood cells), including chronic lymphocytic leukemia (CLL) and chronic myelogenous leukemia (CML); and lung cancer. Mechlorethamine is also used to treat polycythemia vera (a disease in which too many red blood cells are made in the bone marrow). It is also used to treat malignant effusions (a condition when fluid collects in the lungs or around the heart) that are caused by cancerous tumors. Mechlorethamine is in a class of medications called alkylating agents. It works by slowing or stopping the growth of cancer cells in your body.
Slippery Elm - More Interactions
Slippery Elm interacts with 1987 drugs
Interaction Rating Key
These severity listings are for informational use only. Never start, stop or otherwise change your therapy before speaking with your provider.
Major | The combined use of these agents is strongly discouraged as serious side effects or other negative outcomes could occur. |
Moderate | Use cautiously under the care of a healthcare professional or avoid this combination. A significant interaction or negative outcome could occur. |
Minor | Be aware that there is a chance of an interaction. Watch for warning signs of a potential interaction. |
Unknown | No interactions have been reported or no interaction data is currently available. |
Return to the main supplement interaction checker page
Parts of this content are provided by the Therapeutic Research Center, LLC.
DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.
© 2021 Therapeutic Research Center, LLC
Drug descriptions are provided by MedlinePlus.