Vasaka for asthma (Ayurveda)
Tradition: Ayurveda · Evidence: Emerging
An Ayurvedic bronchodilator and expectorant herb whose active alkaloid vasicine inspired modern mucolytic drugs.
Vasaka (Adhatoda vasica) leaves contain vasicine and vasicinone — quinazoline alkaloids with bronchodilator, expectorant, and mast-cell stabilizing effects. Vasicinone is the precursor to modern mucolytic drugs bromhexine and ambroxol.
Tradition context
Often combined with other Ayurvedic respiratory herbs (Tulsi, Yashtimadhu, Pippali) in classical compound formulas.
Preparation
Decoction of dried leaves; standardized leaf extract capsules; honey-based syrups; classical Vasavaleha.
Typical dosing
Standardized extract: 100-300 mg twice daily. Leaf decoction: 5-10 g dry leaf daily.
Cautions
Pregnancy (uterotonic). Caution with anticoagulants. High doses may cause GI upset.
Substance: Vasaka