Materia Medica

Pleurisy Root (Asclepias tuberosa) — Butterfly Weed, Orange Milkweed
A safety-first guide to pleurisy root / butterfly weed (Asclepias tuberosa), covering historic respiratory use, variable milkweed cardenolide chemistry, evidence limits, poisoning and heart-medication cautions, pregnancy safety, identification, and responsible sourcing. Read more...