Question 1

How does Coriaria myrtifolia work for wound healing?

Accepted Answer

Coriaria myrtifolia contains high levels of tannins that provide astringent effects, helping to contract tissues and reduce wound exudate. These compounds create a protective barrier over wounds, promoting healing through protein precipitation and tissue tightening. However, the plant also contains coriamyrtin and tutin—potent neurotoxins that act as GABA receptor antagonists. These compounds make any internal use extremely dangerous, as they can cause severe seizures and death. Only topical, diluted preparations have been used traditionally. Evidence Level: C.

Question 2

Is Coriaria myrtifolia safe to take during pregnancy?

Accepted Answer

No. Coriaria myrtifolia is absolutely unsafe during pregnancy and breastfeeding. The plant contains tutin and coriamyrtin, potent neurotoxins that can cross biological membranes and cause severe neurotoxicity, including seizures. These effects pose life-threatening risks to both mother and fetus. Even topical application is not recommended during pregnancy due to potential systemic absorption. This herb should be completely avoided during pregnancy, lactation, and in children. Evidence Level: C (traditional use and toxicological reports).

Question 3

What is the correct dosage for Coriaria myrtifolia?

Accepted Answer

There is NO safe internal dosage for Coriaria myrtifolia. Ingestion can cause seizures, coma, and death. Traditional use is strictly limited to topical diluted preparations, typically as washes or compresses for wound healing. Exact topical concentrations vary in folk practice, but preparations must always be well-diluted and applied only to intact, unbroken skin. Due to potent neurotoxins (tutin and coriamyrtin), even topical use requires extreme caution. Professional guidance is strongly recommended. Evidence Level: C.

Question 4

Does Coriaria myrtifolia interact with any medications?

Accepted Answer

Due to its severe toxicity profile, Coriaria myrtifolia should not be combined with any medications internally. The neurotoxic compounds tutin and coriamyrtin can induce seizures, which may be dangerously worsened by medications that lower seizure threshold, including certain antidepressants, antipsychotics, and antibiotics. Topical applications have limited systemic absorption, but caution is still warranted. There are no formal drug interaction studies. Given the risk of severe toxicity, this herb should be avoided entirely by those taking anticonvulsants or CNS-active medications. Evidence Level: C.

Question 5

Is Coriaria myrtifolia poisonous to humans?

Accepted Answer

Yes, Coriaria myrtifolia is highly poisonous to humans when ingested. All parts of the plant contain tutin and coriamyrtin—potent neurotoxins that act as GABA receptor antagonists in the central nervous system. Ingestion causes symptoms ranging from nausea and dizziness to severe convulsions, respiratory failure, and death. Historical reports document fatal poisonings, particularly in children who mistake the berries for edible fruits. Despite traditional topical use for wound healing in Mediterranean folk medicine, internal use is never safe. Evidence Level: C.

Coriaria

Sources & Citations

Mangosteen Pericarp

Dasylirion Wheeleri Herb

Afzelia Africana

Summary

Background

Active compounds

Clinical evidence

Safety & adverse effects

Evidence summary

PubMed sources

Government sources