Kalachuchi (Plumeria/Frangipani): Traditional Uses, Phytochemistry, and Safety

Botanical Profile

Plumeria rubra (Apocynaceae), common names: frangipani, temple tree, kalachuchi (Philippines), champa (India). A tropical deciduous tree with fragrant, waxy flowers in white, yellow, pink, and red.

Traditional Uses

Skin: Latex/sap applied to warts, ulcers, wounds, fungal infections (antimicrobial, keratolytic).
Anti-inflammatory/analgesic: Bark and leaf decoctions for rheumatism, headache, toothache, back pain.
Gastrointestinal: Bark for dysentery, diarrhea; latex as purgative (strong).
Respiratory: Flower infusion for cough, asthma.
Febrifuge: Root and bark for malaria, fever.
Cosmetic: Flower oil/extract in perfumes, lotions, hair care.
Ritual: Lei flowers (Hawaii), temple offerings (South/Southeast Asia).

Phytochemistry and Bioactivities (Preclinical)

Compound Class	Examples	Reported Activities
Iridoid glycosides	Plumeroside, rubrinoside	Anti-inflammatory, analgesic, antioxidant
Triterpenoids	Lupeol, β-amyrin, plumeric acid	Anticancer, antimicrobial, wound healing
Flavonoids	Quercetin, kaempferol glycosides	Antioxidant, anti-inflammatory
Alkaloids	Plumerine, fulvoplumierine	Antimicrobial, antifertility (animal)
Latex proteases	Plumerin (papain-like)	Proteolytic, debriding

Safety and Toxicity Concerns

Latex/sap: Irritant—contact dermatitis, keratoconjunctivitis if in eyes. Ingestion: vomiting, diarrhea, abdominal pain.
Cardiac glycosides: Present in some species; risk of arrhythmia if ingested in quantity.
Pregnancy: Traditional abortifacient/emmenagogue—avoid.
Drug interactions: Theoretical with cardiac glycosides, anticoagulants, diuretics.
No established safe dosage for internal use in humans.

Evidence Gap

No high-quality human clinical trials support efficacy for any indication. All data are in vitro, animal, or ethnopharmacological. Not a substitute for evidence-based medicine.

Recommendations

Topical use (latex on warts, flower oil for fragrance)—generally safe with patch test.
Internal use: not recommended without medical supervision.
Consult healthcare provider before using any herbal product, especially if pregnant, on medications, or have chronic conditions.
Source sustainably; correct botanical identification essential.