Nimbasthiktaha katuhu paake laghuhu sheetoagnivatakrit |
graahi hridyo jayetpittakaphamehajwarakrimeen ||
This means the neem is bitter in taste , light to digest and has cooling properties. Because of these properties it increases agni (the power of digestion) and vata dosha. It acts as an astringent and helps to reduce intestinal motility in diarrhea .Texts of ayurveda mention neem as hridya or cardiac tonic. Its action on doshas is as follows- Neem increases vata, normalises vitiated pitta and kapha. It also controls meha or increased frequency of urination. Researches have indicated the benefits of neem in diabetes. Ayurvedacharyas have indicated uses of neem in fever and infections.

