Selenium - Enbrel (etanercept) Interaction
Herbal: Selenium
Drug: etanercept
Brand names:
Enbrel

Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
May 11, 2025
Interaction Details
etanercept is classified as belonging to the following category: Immunosuppressants
Theoretically, selenium supplementation may reduce the effectiveness of immunosuppressant therapy.
In vitro research and preliminary clinical evidence suggests that selenium may stimulate the immune system.
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
- Peretz, A., Neve, J., Desmedt, J., Duchateau, J., Dramaix, M., and Famaey, J. P. Lymphocyte response is enhanced by supplementation of elderly subjects with selenium-enriched yeast. Am.J Clin.Nutr. 1991;53(5):1323-1328.
- Kiremidjian-Schumacher, L., Roy, M., Wishe, H. I., Cohen, M. W., and Stotzky, G. Supplementation with selenium and human immune cell functions. II. Effect on cytotoxic lymphocytes and natural killer cells. Biol.Trace Elem.Res. 1994;41(1-2):115-127.
Selenium Overview
etanercept Overview
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Etanercept injection products are used alone or with other medications to relieve the symptoms of certain autoimmune disorders (conditions in which the immune system attacks healthy parts of the body and causes pain, swelling, and damage) including:
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rheumatoid arthritis (condition in which the body attacks its own joints, causing pain, swelling, and loss of function) in adults,
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psoriatic arthritis (condition that causes joint pain and swelling and scales on the skin) in adults,
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juvenile idiopathic arthritis (JIA; a condition that affects children in which the body attacks its own joints, causing pain, swelling, loss of function, and delays in growth and development) in children 2 years of age and older,
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ankylosing spondylitis (a condition in which the body attacks the joints of the spine and other areas causing pain and joint damage),
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chronic plaque psoriasis (a skin disease in which red, scaly patches form on some areas of the body) in adults and children 4 years of age and older whose psoriasis is too severe to be treated by topical medications alone.
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Etanercept is in a class of medications called tumor-necrosis factor (TNF) inhibitors. It works by blocking the action of TNF, a substance in the body that causes inflammation
Selenium - More Interactions
Selenium interacts with 311 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.
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Drug descriptions are provided by MedlinePlus.