Andrographis paniculata Diterpenoids protect against radiation-induced transformation in BALB/3T3 cells. Nantajit D, Jetawattana S, Suriyo T, Grdina DJ, Satayavivad J. Radiat Res. 2017; 188: 66-74.

Efficacy of Andrographis paniculata extract treatment in mild to moderate COVID-19 patients being treated with favipiravir: A double-blind, randomized, placebo-controlled study (APFaVi trial) Siripongboonsitti T, Ungtrakul T, Tawinprai K, Auewarakul C, Chartisathian W, Jansala T, Julsawad R, Soonklang K, Mahanonda N, Mahidol C Phytomedicine. 2023;119:155018.