Habitat: North-eastern region up to 1,500 m in Assam and Tripura.
English: Pummelo, Shaddock.Ayurvedic: Madhukarkatikaa.Unani: Chakotra.Siddha/Tamil: Pambalimasu.Folk: Mahaa-nibu, Sadaaphal.Action: Fruit—cardiotonic. Leaves, flowers and rind—used as a sedative in nervous affections. Leaves— used in convulsive cough, chorea, epilepsy, also in the treatment of haemorrhagic diseases. A lotion of boiled leaves used hot in painful swellings. The essential oil from fresh leaves exhibits dermatophytic, and fungistatic activity.
The root-bark contains beta-sitos- terol and acridone alkaloids. It also contains several coumarins. The alkaloids and coumarins show antimicrobial acitivity.The essential oil from the leaves and unripe fruits contain 20% limonin, 30% nerolol, 40% nerolyl acetate and 3% geraniol. diosmin, beta-sitosterol and beta-D- glucoside. The roots contain campes- terol, stigmasterol, sitosterol and cholesterol.Aqueous extract of the peel showed hypotensive action in dogs.The fruits and seeds are a cardioton- ic; found useful in palpitation.Dosage: Fruit—10-20 ml juice. (API Vol. III.) Leaf, flower, fruit, root— 50-100 ml decoction. (CCRAS.)