“…Bromhexine hydrochloride, a synthetic derivative of the herbal active ingredient vasicinone, is a mucolytic agent belonging to the acidic glycoprotein solubilizer class ( Talukdar et al, 2023 ). China has approved bromhexine hydrochloride for use in animals, including chickens, and its recommended oral dosage is 0.5 mg/kg body weight ( BW ) in broilers ( MARA, 2022 ).…”