Formulation development of anti-rheumatoid gel of Saraca asoca (Roxb.) De Wilde hydroalcoholic extract containing eucalyptus oil and peppermint oil as penetration enhancer. Braz. J. Pharm. Sci. [Internet]. 2022 Dec. 23 [cited 2024 Jun. 2];58. Available from: https://periodicos.usp.br/bjps/article/view/205468