Cajeput is native to Australia and the surrounding islands of oceaniaandwasknown to be used by the Malays and Javanese as a diaphoretic. It was also used in India as a topical application for rheumatism.1 A report from Indian doctor Ram Dhari Sinha, dating back to 1896, mentions that it was “generally known” that ingestion of cajeput acts as a stimulant, sudorific, and antispasmodic. He also travelled around the countryside testing the efficacy of cajeput essential oil against pneumonia “with good results”.2 Cajeput was also known for use in Europe as a stimulant an antispasmodic.1 Other traditional uses of cajeput include migraine, cold, influenza, stomachache, psoriasis, eczema, acne and rheumatism.3
Cajeput essential oil is non-toxic and a relative non-irritant. Caution should be used when using this oil for antiseptic properties as in higher concentrations it may cause irritation. As with all essential oils that can be ingested, a proper ratio dilution is suggested. Consultation with a naturopathic doctor is recommended for targeting of viral infections or intended long-term use.
1 Maiden, Joseph Henry. Forest Flora of New South Wales Volume 1. Government Printer [for] the Forest Department of New South Wales, 1904.
2 Sinha, Ram Dhari. “Cajeput Oil in Pneumonia, with Cases.” The Indian Medical Gazette, vol. 31, no. 12, Dec. 1896, p. 436.
3 Pooja, Arora, et al. “Screening of Plant Essential Oils for Antifungal Activity Against Malassezia Furfur.” International Journal of Pharmacy and Pharmaceutical Sciences, vol. 5, no. 2, 2013.
4 Wildwood, Christine. Encyclopedia of Aromatherapy. Healing Arts Press, 2000.
5 Battaglia, Salvatore. The Complete Guide to Aromatherapy. International Centre of Holysitc Aromatherapy, 2003.6 Juergens, U.R, et al. “Anti-Inflammatory Activity of 1.8-Cineol (Eucalyptol) in Bronchial Asthma: A Double-Blind Placebo-Controlled Trial.” Respiratory Medicine, vol. 97, no. 3, 2003, pp. 250–256., doi:10.1053/rmed.2003.1432.
7 Juergens, Uwe R., et al. “Inhibitory Activity of 1,8-Cineol (Eucalyptol) on Cytokine Production in Cultured Human Lymphocytes and Monocytes.” Pulmonary Pharmacology & Therapeutics, vol. 17, no. 5, 2004, pp. 281–287., doi:10.1016/j.pupt.2004.06.002.
8 Soares, M., et al. “Eucalyptol, an Essential Oil, Reduces Contractile Activity in Rat Cardiac Muscle.” Brazilian Journal of Medical and Biological Research, vol. 38, no. 3, 2005, pp. 453–461., doi:10.1590/s0100-879x2005000300017.
9 Santos, F. “1,8-Cineole (Eucalyptol), a Monoterpene Oxide Attenuates the Colonic Damage in Rats on Acute TNBS-Colitis.” Food and Chemical Toxicology, vol. 42, no. 4, 2004, pp. 579–584., doi:10.1016/j.fct.2003.11.001.
10 Mitić-Ćulafić, D., et al. “Protective Effect of Linalool, Myrcene and Eucalyptol against t-Butyl Hydroperoxide Induced Genotoxicity in Bacteria and Cultured Human Cells.” Food and Chemical Toxicology, vol. 47, no. 1, 2009, pp. 260–266., doi:10.1016/j.fct.2008.11.015.
11 Liu, Chi-Hsien, and Fu-Yen Chang. “Development and Characterization of Eucalyptol Microemulsions for Topical Delivery of Curcumin.” Chemical & Pharmaceutical Bulletin, vol. 59, no. 2, 2011, pp. 172–178., doi:10.1248/cpb.9.172.