The wood, durable under ground and water, is valued for boats, cabinetry, carving, crossties, fencerails, flooring, gunstocks, mine braces, pilings, posts, rafters, railway sleepers, ships and wharves. Burmese mix cajeput oil with camphor for gout. Indochinese use the oil for arthritis and rheumatism, inhaling the oil for colds and rhinitis. Cambodians use the leaves for dropsy. Indonesians apply the oil externally for burns, cramps, colic, earache, headache, pain, skin disease, and toothache.
Softened bark is applied to boils as a suppurative.
New Guinea natives rub the oil on the body for malaria. Filipinos use the leaves for asthma. Indonesians use the fruit for stomach disorders. In India, the oil is used internally as an expectorant in chronic bronchitis and laryngitis. Overdoses cause gastrointestinal irritation.