Fenugreek - Plegridy (Peginterferon Beta-1a) Interaction
Herbal: Fenugreek
Also Known As: Trigonella foenum-graecum, Alholva, Bird's Foot, Chandrika, Fenogreco, Fenugrec, Foenugreek, Greek Clover, Greek Hay, Hu Lu Ba, Methi, Methika, Medhika, Senegrain, Senegre, Trigonella, Trigonelle
Drug: Peginterferon Beta-1a
Brand names:
Plegridy

Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
May 11, 2025
Interaction Details
There were no interactions found between Peginterferon Beta-1a and Fenugreek. This does not mean the potential for an interaction does not exist, however. There is often a lack of studies and data surrounding traditional medicine, especially concerning drug interactions, so it is important to always consult your provider before making any changes to your medication regimen.
Pharmacist Analysis
Fenugreek is generally considered relatively safe in regard to potential drug interactions.
Nevertheless, interactions are possible between fenugreek and:
- 'Blood-thinning' drugs
- Drugs that lower blood pressure
- Drugs that low blood sugar
Fenugreek contains some components that can prevent blood from clotting. However, there is not enough research to confirm whether the amount of these components present in common fenugreek products can have a clinically significant effect.
Fenugreek may also have an additive effect with blood sugar-lowering medication and blood pressure-lowering medication.
All of these potential interactions are documented individually on our specific drug-herbal interaction pages.
- Dr. Brian Staiger, PharmDFenugreek Overview

Peginterferon Beta-1a Overview
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Peginterferon beta-1a injection is used to treat adults with various forms of multiple sclerosis (MS; a disease in which the nerves do not function properly and people may experience weakness, numbness, loss of muscle coordination, and problems with vision, speech, and bladder control) including the following:
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clinically isolated syndrome (CIS; nerve symptom episodes that last at least 24 hours),
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relapsing-remitting forms (course of disease where symptoms flare up from time to time), or
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secondary progressive forms (course of disease where relapses occur more often).
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Peginterferon beta-1a injection is in a class of medications called immunomodulators. It works by decreasing inflammation and preventing nerve damage that may cause symptoms of multiple sclerosis.
Fenugreek - More Interactions
Fenugreek interacts with 384 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.