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Invitrogen
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Ranitidine, a histamine H2-receptor antagonist, is primarily used to reduce stomach acid production and treat conditions such as gastroesophageal reflux disease (GERD). The gene encoding ranitidine's target, the H2 receptor, is located on chromosome 3p25.3. Structurally, ranitidine is characterized by a furan ring linked to a nitroethenediamine moiety, which facilitates its binding to the H2 receptor, thereby inhibiting histamine-induced gastric acid secretion. The biosimilar development of ranitidine involves synthesizing analogs with structural modifications to enhance binding affinity and therapeutic efficacy, as explored through molecular modeling and structure-activity relationship studies. These modifications aim to optimize interactions with the receptor's hydrophobic and peripheral anionic sites, ensuring effective inhibition of gastric acid secretion. The bioavailability of ranitidine formulations is assessed through comparative studies, ensuring that biosimilars match the pharmacokinetic profiles of reference products like Zantac.
仅用于科研。不用于诊断过程。未经明确授权不得转售。