Dhea - Arimidex (Anastrozole) Interaction
Herbal: Dhea
Also Known As: 3b-Hydroxy-Androst-5-Ene-17-One, 3BetaHydroxy-Androst-5-Ene-17-One, Androstenolone, Déhydroépiandrostérone, DHEA-S, GL701, Prasterone
Drug: Anastrozole
Brand names:
Arimidex
Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
May 11, 2025
Interaction Details
Anastrozole is classified as belonging to the following category: Aromatase Inhibitors
Theoretically, DHEA might interfere with the clinical effects of aromatase inhibitors.
DHEA is a potent estrogen agonist, which may antagonize the anti-estrogen activity of aromatase inhibitors.
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
- Morris KT, Toth-Fejel S, Schmidt J, et al. High dehydroepiandrosterone-sulfate predicts breast cancer progression during new aromatase inhibitor therapy and stimulates breast cancer cell growth in tissue culture: a renewed role for adrenalectomy. Surgery
Dhea Overview
Dehydroepiandrosterone (DHEA) is a natural (i.e., endogenous) hormone produced by the adrenal gland and is among the most abundant steroid hormones in the human body. It is a precursor to the hormones testosterone and estrogen, and it is thought to have various effects on the body. DHEA levels naturally decline with age. It is a popular over the counter supplement that is purported to have a variety of health benefits, including increasing muscle mass, improving cognitive function, improving mood and reducing the risk of heart disease and diabetes. The scientific evidence supporting the use of DHEA for these purposes is limited and mixed. Additionally, it could potentially interact with several different medications so if you are considering taking DHEA supplements, it is important to speak with a healthcare professional.
DHEA should not be confused with other supplements containing the letters 'DHEA'. 7-alpha-hydroxy-DHEA, 7-beta-hydroxy-DHEA, and 7-keto-DHEA, all contain DHEA as the parent compound with additional structures attached.
Anastrozole Overview
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Anastrozole is used with other treatments, such as surgery or radiation, to treat early breast cancer in women who have experienced menopause (change of life; end of monthly menstrual periods). This medication is also used in women, who have experienced menopause, as a first treatment of breast cancer that has spread within the breast or to other areas of the body. This medication is also used to treat breast cancer in women whose breast cancer has worsened after taking tamoxifen (Nolvadex). Anastrozole is in a class of medications called nonsteroidal aromatase inhibitors. It works by decreasing the amount of estrogen the body makes. This can slow or stop the growth of many types of breast cancer cells that need estrogen to grow.
Dhea - More Interactions
Dhea interacts with 754 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.
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In addition to being a clinical pharmacist specializing in pharmacotherapy, Dr. Brian Staiger is a registered herbalist through the American Herbalist Guild. He has combined his passion for pharmacy practice with the study of medical ethnobotany to improve patient care. Feel free to reach out about any of your herbal or medication questions!
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