A brief description of the synthetic pathway of ranitidine is synthesized via dimethylamine hydrochloride. According to the query related information, the synthetic pathway of ranitidine is synthesized through the reaction of dimethylamine hydrochloride. Ranitidine is a histamine type 2 receptor antagonist, an H2 receptor antagonist, a gastric drug commonly used in clinical practice. The mechanism of action of ranitidine is to inhibit the histamine type 2 receptor on the wall cells of the gastric mucosa, so as to achieve the effect of inhibiting gastric acid secretion.