Hemp Agrimony - Peginterferon alfa-2b Interaction
Herbal: Hemp Agrimony
Also Known As: Eupatorium cannabinum, Alpenkraut, Cañamazo, Cáñamo Acuático, Cannabine, Chanvre d'Eau, Chanvrin, Donnerkraut, Dostenkraut, Drachenkraut, Dutch Agrimony, Dutch Eupatoire Commune, Eupatorio, Eupatorium, Gemeiner Wasswedost, Herbe de Sainte Cunégonde, Hirshklee, Holy Rope
Drug: Peginterferon alfa-2b
Brand names:
Peg-Intron, ViraferonPeg
Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
May 18, 2025
Interaction Details
Peginterferon alfa-2b is classified as belonging to the following category: Hepatotoxic Drugs
Hemp agrimony contains hepatotoxic pyrrolizidine alkaloids (PA). Theoretically, using hemp agrimony with hepatotoxic drugs might have additive adverse effects on the liver. Some drugs that can adversely affect the liver include acetaminophen (Tylenol and others), amiodarone (Cordarone), carbamazepine (Tegretol), isoniazid (INH), methotrexate (Rheumatrex), methyldopa (Aldomet), fluconazole (Diflucan), itraconazole (Sporanox), erythromycin (Erythrocin, Ilosone, others), phenytoin (Dilantin), lovastatin (Mevacor), pravastatin (Pravachol), simvastatin (Zocor), and many others.
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
- Chojkier M. Hepatic sinusoidal-obstruction syndrome: toxicity of pyrrolizidine alkaloids. J Hepatol 2003;39:437-46.
- Wang YP, Yan J, Fu PP, Chou MW. Human liver microsomal reduction of pyrrolizidine alkaloid N-oxides to form the corresponding carcinogenic parent alkaloid. Toxicol Lett 2005;155:411-20.
Hemp Agrimony Overview
Hemp agrimony (Eupatorium cannabinum) is a flowering plant that belongs to the aster family (Asteraceae). It has hairy, serrated leaves and small, pinkish-purple flowers that bloom in clusters. The plant gets its name from the fact that it has a fibrous stem, which was once used to make hemp rope.
Hemp agrimony has been used medicinally for centuries, and it is believed to have astringent, diuretic, and tonic properties. It is sometimes used to treat digestive disorders, such as diarrhea and dysentery, and it is also used to treat respiratory conditions, such as bronchitis and asthma.
It is important to note that hemp agrimony is not the same as marijuana (Cannabis sativa) and does not contain significant amounts of the psychoactive THC. Additionally, the use of hemp agrimony as a medicine generally isn't recommended as it may contain liver-toxic pyrrolizidine alkaloid (PA) constituents.
Peginterferon alfa-2b Overview
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Peginterferon alfa-2b is used alone or in combination with ribavirin (a medication) to treat chronic (long-term) hepatitis C infection (swelling of the liver caused by a virus) in people who show signs of liver damage and who have not been treated with interferon alpha (medication similar to peginterferon alfa-2b) in the past. Peginterferon alfa-2b is in a class of medications called interferons. Peginterferon alpha-2b is a combination of interferon and polyethylene glycol, which helps the interferon stay active in your body for a longer period of time. Peginterferon alpha-2b works by decreasing the amount of hepatitis C virus (HCV) in the body. Peginterferon alfa-2b may not cure hepatitis C or prevent you from developing complications of hepatitis C such as cirrhosis (scarring) of the liver, liver failure, or liver cancer. Peginterferon alfa-2b may not prevent the spread of hepatitis C to other people.
Hemp Agrimony - More Interactions
Hemp Agrimony interacts with 410 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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Dr. Brian Staiger, PharmD
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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