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Quassia Wood

Antimicrobial

Quassia amara

PregnancyNursing

Last updated Mar 29, 2026

Description

Tropical American tree wood with intensely bitter quassinoids used in folk medicine for digestive conditions, malaria, and head lice treatment.

Active Compounds

quassinneoquassinisoquassinsimalikalactone Dflavonoids

Traditional Uses

Malaria and fever in Surinamese and Caribbean folk medicine
Digestive bitters and appetite stimulation
Head lice treatment topically
Liver conditions

Modern Uses

Antimalarial
Digestive bitter
Antipediculotic topically
Anti-inflammatory

Dosage Information

Recommended dosing guidelines

Forms: tincture, tea, topical, extract
Adult Dose: 0.5-1g dried wood tea 3x daily; apply infusion to scalp for lice
Child Dose: Not for children under 16 internally; topical lice treatment only for children
Preparation Notes: Simmer wood chips 10 minutes; use topical rinse for head lice treatment.

Safety Information

Not recommended during pregnancy

Not recommended while nursing

Contraindications

Pregnancy
Large internal doses cytotoxic
Nursing

Possible Side Effects

Nausea at high doses
Vomiting
Cytotoxicity with excessive use

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