Pleumchitt RojanapanthuMahidol University. Faculty of Pharmacy2019-06-272019-06-272019-06-27Pleumchitt Rojanapanthu. Andrographis paniculata gel as an adjunct in the treatment of periodontitis. Patent no. US 7,135,164. 14 Nov 2006https://repository.li.mahidol.ac.th/handle/20.500.14594/44178engMahidol UniversityU.S. Patentbiodegradable gelperiodontal pathogensAndrographis paniculataantimicrobialสิทธิบัตรAndrographis paniculata gel as an adjunct in the treatment of periodontitisPatentFaculty of Pharmacy Mahidol UniversityUS 20030091517 A110/290,941US 7,135,164