Terbinafine hydrochloride film coating agent and preparation method thereof

The invention discloses a terbinafine hydrochloride film coating agent. The film coating agent is composed of the following components: terbinafine hydrochloride, wherein the content of terbinafine hydrochloride in the film coating agent is 5%; 96% ethanol is used as a solvent, and the proportion is 10%; the copolymer of acrylic acid and octyl acrylamide is used as a film forming agent of the film coating agent, and the proportion is 1%; medium chain triglyceride which is used as a conditioning agent and has a proportion of 1%; the hydroxypropyl cellulose is used as a thickening agent, and the proportion is 1%; and polyethylene glycol which is used as a conditioning agent and is generally 1%. The hydroxypropyl methyl cellulose is used as a thickening agent, and the proportion is 1%; the sodium hydroxide is used as an acid-base regulator, the dosage is small, and the proportion is 0.1%; the vitamin E is used as an antioxidant, and the proportion of the vitamin E is 0.1%; the terbinafine hydrochloride liniment