(Holarrhena antidysenterica, Wrightia antidysenterica)
Kutaja is a very famous herb used in treating diarrhoea etc.
Medicinal qualities of Kutaja –
Rasa (taste) –  Tikta (bitter), Kashaya (Astringent)
Guna (qualities) – Laghu (lightness),  Rooksha (dryness)
Veerya – Sheeta – cold potency
Vipaka – Katu – Undergoes pungent taste conversion after digestion.
Effect on Tridosha – It balances Kapha and Pitta.
Parts Used – Bark, leaves, seeds, flowers.
Kutaja seeds are called as Indrayava. Wherever in Ayurveda textbooks, Indrayava is mentioned, there Kutaja seeds are taken as ingredient.
Dosage –
Powder 3-6 grams in divided dose in a day is the maximum dose.
Its water decoction (Kashaya) is given in a dose of 50 – 100 ml per day.
Uses:
Kushta, Atisara Jantujit – useful in skin diseases, diarrhoea and intestinal worms.
Gudakeelaka – cures piles
Vatasra – treats gout
Shramahara – relieves tiredness
Lohitanashana – detoxifies blood
Parts used are:
leaf, stem and seeds.