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The wood of this tree abounds with the resinous principles of mastich; and a tincture made from it has been used in the cure of dyspeptic affections, gout, and dysentery. It yields, by incision, the resin Mastich, Resi'na Lentis'cina, Men’frige, Mas'tiche, Mastix, Piataciae Lentis'ci Resi'na. This resin has an agreeable smell when heated: is almost insipid; in globular, irregular, yellowish, semi-transparent masses; soluble in ether; partially so in alcohol. It is stimulant, and has been used in old coughs, and gleet, and is chewed to sweeten the breath. It is sometimes, also, employed to stop holes in carious teeth. Oil of Mastich, Mastichelae'on, Oleum Mastich'inum, is mentioned by Dioscorides.

Common mastic tree, indigenous to the shores of the Mediterranean. Its sap constitutes, after hardening, the mastic of commerce. The wood was formerly used as a hemostatic and astringent.