Piper acutifolium

In traditional Andean and Amazonian medicine, Piper acutifolium (matico) is prepared as a leaf or aerial-part infusion or decoction for both internal and external care. Among the Mapuche of southern Chile, a leaf decoction is used as a wash for bleeding wounds and to help close and protect cuts, according to Bennett et al. (2021). In coastal Peru, dried leaf is infused as a tea for dysentery, colic, and the afterbirth period, while the same infusion or decoction is used to wash wounds and mouth sores, per De Feo (2003). In Andean Bolivia, a strong leaf infusion is taken for stomachache and as a digestive tea, and the boiled leaf is applied as a poultice to bruises and inflamed areas (Cruz et al., 2015). In Amazonian Peru, a leaf infusion is also consumed to ease colds and coughs (Ostolaza, 2011). These preparations consistently involve the leaves and tender stems.

A practical mild leaf tea for digestive or general support can be made by placing 1–2 grams of dried, chopped leaves in 250 mL of just‑boiling water, covering, and letting it steep for 5–10 minutes before straining. Adults typically drink 1 cup up to twice daily as needed; do not use during pregnancy or breastfeeding, and discontinue if allergic symptoms develop. For wound care, a decoction suitable for washing can be prepared by simmering 6–10 grams of fresh or dried leaf in 500 mL of water for 10–15 minutes, cooling, and applying as a wash or compress two to three times daily; avoid contact with eyes. A 1:5 ethanol tincture is made by macerating 20 grams of chopped dried leaf in 100 mL of 45% ethanol for 2–4 weeks in a dark place, shaking daily and filtering; the finished tincture can be used for topical care or in a very small dilution as directed by a trained practitioner; the adult dose of 10–20 drops diluted in water can be taken 1–2 times daily for short periods; do not use in pregnancy.

Piper acutifolium contains an essential oil rich in safrole, elemicin, myristicin, asaricin, and related phenylpropanoids, as well as the alkaloid piperine, compounds that have been identified in this species and are consistent with its reported antimicrobial and antispasmodic actions (Bennett et al., 2021; De Feo, 2003). These constituents help explain the traditional use for wound washing and as a digestive tea.

Today, matico remains a widely used remedy in Andean and Amazonian communities, and clinical interest in its antimicrobial and anti-inflammatory potential continues to grow.

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