Background: Shyonaka (Oroxylum indicum Vent.; Bignoniaceae) root bark is one of the ingredients of dashamoola (a group of 10 roots), and is used for its anti-inflammatory and analgesic action in a number of compound formulations in Ayurveda.
Aim: Ayurvedic Pharmacopoeia of India (API) recommends using the stem bark instead of root bark.
Material and methods: An attempt has been made to study the anti-inflammatory activity of both root bark and stem bark kashaya (decoction) experimentally.
Conclusion: Results showed significant anti-inflammatory activity of root bark and stem bark decoction.
Keywords: Anti-inflammatory; Ayurveda; Oroxylum indicum; dashamoola; shyonaka.