system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Difference between rantidine & cimetidine is ?
assistant
The correct answer is  Ans. is 'a' i.e., Ranitidine is 5 times more potent than cimetidine Ranitidine has several desirable features compared to cimetidine: 5 times more potent than cimetidine. No antiandrogenic action, does not increase prolactin secretion or spare estradiol from hepatic metabolism - no effect on male sexual function or gynaecomastia. Lesser permeability into brain. Less marked inhibition of hepatic metabolism of other drugs. Overall incidence of side - effects is lower.