American Elder - Viramune (Nevirapine) Interaction
Herbal: American Elder
Also Known As: Sambucus canadensis, American Elderberry, Common Elderberry, Elder Flower, Elderberry, Sabugueiro, Saúco, Saúco de Canada, Sureau, Sureau Blanc, Sureau du Canada, Sweet Elder
Drug: Nevirapine
Brand names:
Viramune, Viramune XR

Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
May 04, 2025
Interaction Details
Nevirapine is classified as belonging to the following category: Cytochrome P450 3A4 (Cyp3A4) Substrates
Theoretically, taking American elder might increase levels of CYP3A4 substrates.
In vitro research shows that American elder inhibits CYP3A4 enzymes.
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
- Budzinski JW, Foster BC, Vandenhoek S, Arnason JT. An in vitro evaluation of human cytochrome P450 3A4 inhibition by selected commercial herbal extracts and tinctures. Phytomedicine 2000;7:273-82.
American Elder Overview

Nevirapine Overview
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Nevirapine is used along with other medications to treat human immunodeficiency virus (HIV) infection in adults and children 15 days of age and older. Nevirapine should not be used to treat healthcare workers or other individuals exposed to HIV infection after contact with HIV-contaminated blood, tissues, or other body fluids. Nevirapine is in a class of medications called non-nucleoside reverse transcriptase inhibitors (NNRTIs). It works by decreasing the amount of HIV in the blood. Although nevirapine does not cure HIV, it may decrease your chance of developing acquired immunodeficiency syndrome (AIDS) and HIV-related illnesses such as serious infections or cancer. Taking these medications along with practicing safer sex and making other life-style changes may decrease the risk of transmitting (spreading) the HIV virus to other people.
American Elder - More Interactions
American Elder interacts with 623 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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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.