Interaction Details

There were no interactions found between Valacyclovir and Calamus. 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.


Still looking for more information about combining Valacyclovir and Calamus? Ask Dr. Brian Staiger about it by contacting him directly.

Calamus Overview

Calamus Calamus is a grass-like plant commonly mostly commonly found in Eastern Europe in swamps or along the banks of waterways. Calamus has traditionally been used in both Ayurdevic and Chinese medicine for a number of ailments, including digestive disorders including colic, ulcers, gastritis, flatulence, diarrhea, intestinal infections, dyspepsia, and anorexia. It is also used to induce vomiting, induce sweating, improve memory and for the treatment of inflammatory disorders. The FDA does not allow calamus in food due research showing it has carcinogenic effects, likely due to the beta-asarone content, which can vary heavily depending on the species.
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Valacyclovir Overview

  • Valacyclovir is used to treat herpes zoster (shingles) and genital herpes. It does not cure herpes infections but decreases pain and itching, helps sores to heal, and prevents new ones from forming.

  • This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.

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Calamus - More Interactions

Calamus interacts with 1071 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.

Ask A Pharmacist About Your Herbal Questions!

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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