Gastric floating preparation for treating poultry proventriculitis and preparation method thereof

The invention discloses a gastric floating preparation for treating poultry proventriculitis. The preparation comprises major medicines and excipients, wherein the major medicines are amoxicillin and astragalus polysaccharide. The preparation comprises the following raw materials in percentage by weight: 5-30% of amoxicillin, 2-10% of astragalus polysaccharide, 10-20% of an adsorbent, 20-50% of a hydrophilic gel material, 5-20% of a bleaching aid, 1-30% of a thinner and 0.2-5% of a foaming agent. The gastric floating preparation disclosed by the invention is an intra-gastric floating preparation which is prepared by combining amoxicillin and astragalus polysaccharide, so that medicines can stay in the stomach for a relatively long time to take efficacies. Compared to a normal preparation, the preparation disclosed by the invention can keep stable plasma concentration of the medicines in a body for a long time and improve bioavailability of the medicines; meanwhile, administration frequency and dosage are redu