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Calendula Side Effects, Interactions and Warnings

Calendula may cause contact dermatitis, or an anaphylactic or eczematous allergic reaction.
- Contact Dermatitis 2001 Nov;45(5):269-72 -- The seamy side of natural medicines: contact sensitization to arnica (Arnica montana L.) and marigold (Calendula officinalis L.). -- Reider N, Komericki P, Hausen BM, Fritsch P, Aberer W.

Concluded that the available data are insufficient to support the safety of these ingredients in cosmetic formulations.
- Int J Toxicol 2001;20 Suppl 2:13-20 -- Final report on the safety assessment of Calendula officinalis extract and Calendula officinalis.

Calendula may affect the menstrual cycle and should not be used during pregnancy or nursing.

Calendula may have a sedative action that can interact with medications.
- Farmakol Toksikol 1978 Sep-Oct;41(5):556-60 -- Pharmacology of calenduloside B, a new triterpene glycoside from the roots of Calendula officinalis -- Iatsyno AI, Belova LF, Lipkina GS, Sokolov SI, Trutneva EA.

This information is not intended to be a substitute for professional medical advice. You should not use this material to diagnose or treat a health condition or disease without consulting with your healthcare provider.
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