MUC5AC and bronchitis: In vitro and in vivo studies with leaves extracts, essential oil, and 1,8-cineol are supportive for some ethnomedicinal use (Ross, 2001; Jun et al., 2013; Brezáni et al., 2018; Dhakad et al., 2018; Galan et al., 2020); for example, the essential oil (300 mg/kg) exerted an anti-inflammatory effect on LPS-induced bronchitis in rats, inhibiting the airway mucin hypersecretion (Lu et al., 2004).