Home Herbs Index M Mastagi (Pistacia lentiscus) (Mastic) AllABCDEFGHIJKLMNOPQRSTUVWXYZ Mastagi (Pistacia lentiscus) (Mastic) Pharmacological action: Diuretic, anti-inflammatory, aphrodisiac, expectorant. Medicinal use: Effective in infantile diarrhea, toothache, bleeding from gums, cough, wind pipe obstructions, skin spots and freckles.