Peptazol (lansoprazole) 30mg is a medication that belongs to the class of drugs called proton pump inhibitors (PPIs). It works by reducing the amount of stomach acid produced by the proton pumps in the stomach lining, which helps to treat conditions caused by excessive acid production. Lansoprazole works by inhibiting the action of the proton pump (H+/K+ ATPase) in the stomach, which is responsible for producing acid. By blocking this enzyme, it reduces the secretion of gastric acid, thus providing relief from acid-related conditions.