Chokeberry - Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine Interaction
Herbal: Chokeberry
Also Known As: Aronia arbutifolia, Aronia melanocarpa, Aronia nigra, Aronia prunifolia
Drug: Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine
Brand names:
Tylenol Cold Ex Strength, Children's Tylenol Cold Plus Cough

Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
May 04, 2025
Interaction Details
Acetaminophen, Chlorpheniramine, Dextromethorphan, Pseudoephedrine is classified as belonging to the following category: Cytochrome P450 3A4 (Cyp3A4) Substrates
Theoretically, chokeberry might increase levels of drugs metabolized by CYP3A4.
In vitro research shows that chokeberry inhibits CYP3A4. In humans, there is one case report of a drug interaction with trabectedin, a CYP3A4 substrate, which is hypothesized to have been caused by chokeberry inhibition of CYP3A4.
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
- Bräunlich M, Christensen H, Johannesen S, Slimestad R, Wangensteen H, Malterud KE, Barsett H. In vitro inhibition of cytochrome P450 3A4 by Aronia melanocarpa constituents. Planta Med. 2013 Jan;79(2):137-41.
- Strippoli S, Lorusso V, Albano A, Guida M. Herbal-drug interaction induced rhabdomyolysis in a liposarcoma patient receiving trabectedin. BMC Complement Altern Med. 2013 Jul 30;13:199.
Chokeberry Overview

Chokeberry - More Interactions
Chokeberry interacts with 787 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. |
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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.