Magnesium aluminum carbonate belongs to the gastric mucosa protection agent, colloidal bismuth belongs to the bismuth agent, can also play a role in protecting the gastric mucosa, but the specific mechanism of action is different.
Magnesium aluminum carbonate mainly plays the role of neutralizing gastric acid and reducing the amount of gastric acid; it can also directly inhibit the activity of gastric acid protease through adsorption and binding, which is conducive to the repair of the ulcer surface; in addition, it can also stimulate the gastric mucous membrane so that the synthesis of prostaglandin E2 increases, thus enhancing the role of gastric mucous membrane barrier.
After oral administration of bismuth pectin, under the action of gastric acid, it can complex protein to form bismuth salts and viscous condensate, coated on the surface of the stomach, forming a protective layer to cover the ulcer surface, thus preventing stimulation of pepsin, gastric acid, and food, etc.; and at the same time, it has a killing effect on Helicobacter pylori, thus preventing the degradation of the mucus layer and protecting its integrity.
Magnesium aluminum carbonate adverse reactions occasionally constipation, loose stools, dry mouth and lack of appetite, large doses can lead to gastrointestinal discomfort, long-term use can lead to changes in serum electrolytes, allergic to the product, severe renal insufficiency, hypophosphatemia is prohibited. Pectin bismuth can occasionally appear nausea, constipation and other digestive symptoms, allergic to the product and renal insufficiency is prohibited.
It is recommended to use the drug under the guidance of a doctor, not blindly self-medication, in order to avoid adverse effects.