The invention discloses a clofenyellow tablet and a
coating process thereof, and belongs to the technical field of production of the clofenyellow tablet. The preparation method comprises the following steps: sieving
dihydroxyaluminium aminoacetate to obtain
dihydroxyaluminium aminoacetate superfine
powder, adding a cosolvent, a solubilizer and
purified water, uniformly mixing to form
dihydroxyaluminium aminoacetate compound mixed liquor, uniformly mixing the dihydroxyaluminium aminoacetate compound mixed liquor, a
thickening agent, a filling agent and
purified water to obtain
coating liquid, and finally spraying the
coating liquid on a lofenac-huangsensitive tablet, thereby obtaining the lofenac-huangsensitive tablet. And
drying to obtain the lofenac yellow tablet. According to the invention, a
film coating in a conventional process is replaced by a
medicine (dihydroxyaluminum glycinate) coating, so that the
moisture-proof,
oxygen-isolating, wear-resistant and shading functions of the lofenac
sodium tablet are enhanced, and the content of impurities B and C in
diclofenac sodium is effectively reduced. Experiments show that the
medicine irritation can be effectively reduced, adverse reactions such as
vomiting and
diarrhea can be reduced, gastrointestinal
peristalsis can be better increased, the gastrointestinal
motility function can be promoted, the safety of the
medicine is greatly improved, and the medicine has a wide application scene.