Botanical Overview
Pau pereira (Geissospermum laeve) belongs to the Apocynaceae family. While not among the most extensively documented medicinal plants, this species has recorded uses that warrant attention from researchers and practitioners. The dogbane family (Apocynaceae) includes herbs, shrubs, vines, and trees with milky sap containing alkaloids and cardiac glycosides. The flowers are typically five-petaled and often showy with a tubular corolla. Many species in this family are highly toxic but also source of important cardiac medications.

Family Context
The Apocynaceae family is primarily tropical and subtropical. Notable medicinal members include:
- Alstonia scholaris — 42 documented uses
- Madagascar Periwinkle — 40 documented uses
- Oleander — 30 documented uses
- African Snakeroot — 28 documented uses
Traditional Uses
Pau pereira has been traditionally used for fever management.
Fever management.
- Malaria
- Fever
Febrifuge preparations are typically administered as hot teas to induce perspiration, which helps the body regulate temperature. The patient is kept warm and encouraged to rest while the herb promotes sweating.