Enteric coating method of mesalazine enteric-coated tablet and enteric-coated tablet

The invention relates to the field of chemical medicine preparation, in particular to an enteric coating method of a mesalazine enteric-coated tablet and the mesalazine enteric-coated tablet. According to the enteric coating method of the mesalazine enteric-coated tablet provided by the invention, the tablet core is sequentially coated with the isolating layer coating, the enteric layer coating and the damp-proof layer coating, so that the isolating and damp-proof effects on the tablet core are achieved, the contact between the tablet core and the outside is reduced, and the stability of the product is effectively improved. After the mesalazine enteric-coated tablet enters a human body, due to the protection of an enteric coating, the active ingredient mesalazine of the medicine in an acid environment of the stomach cannot be released to the outside. When the medicine enters the intestinal tract, under the pH value environment of the intestinal tract, the enteric coating layer is gradually dissolved, the mesa