Calendula - Equanil (Meprobamate) Interaction
Herbal: Calendula
Also Known As: Calendula officinalis, Caléndula, Calendule, Common Marigold, English Garden Marigold, Fleur de Calendule, Fleur de Tous les Mois, Garden Marigold, Gold-Bloom, Holligold, Marigold, Marybud, Pot Marigold, Souci des Champs, Souci des Jardins, Souci des Vignes
Drug: Meprobamate
Brand names:
Equanil, Miltown, Meprospan, Neuramate
Medical Content Editor Dr. Brian Staiger, PharmD
Last updated
May 18, 2025
Interaction Details
Meprobamate is classified as belonging to the following category: Cns Depressants
Theoretically, calendula might have additive effects when used with CNS depressants, although this appears to be unlikely.
Although some animal research has suggested that a saponoside constituent in calendula may have sedative effects, calendula has been used for over 30 years without reports of sedation in humans.
Interaction Rating
Likelihood of Occurrence
UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
References
- Bojadjiev C. On the sedative and hypotensive effect of preparations from the plant Calendula officinalis. Nauch Trud Visshi Med Inst Sof 1964;43:15-20.
- Samochowiec L. Pharmacological study of saponosides from Aralia mandshurica Rupr. et Maxim and Calendula officinalis L. Herba Pol. 1983;29:151-155.
- Final Assessment report on Calendula officinalis L., flos. European Medicines Agency: Committee on Herbal Medicinal Products (HMPC). 2018. EMA/HMPC/603409/2017. Available at: https://www.ema.europa.eu/en/documents/herbal-report/final-assessment-report-cal
Calendula Overview
Calendula is a type of flowering plant that belongs to the daisy family. It is also known as "pot marigold" or "marigold," although it is not closely related to the true marigold. Calendula plants are native to the Mediterranean region. The orange and yellow flowers of the calendula plant are often used as a natural dye. Calendula is also used in traditional medicine to treat a variety of ailments, including wounds, inflammation, spasm disorders and skin irritations.
Meprobamate Overview
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Meprobamate is used to treat anxiety disorders or for short-term relief of the symptoms of anxiety in adults and children 6 years of age and older. Meprobamate is in a class of medications called tranquilizers. It works by slowing activity in the brain to allow for relaxation.
Calendula - More Interactions
Calendula interacts with 247 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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