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
Which of the following drugs is not used for H. pylon treatment?
assistant
The correct answer is  H. pylori is a gram negative bacillus uniquely adapted to survival in the hostile environment of stomach. Antimicrobials that have been found clinically effective against H. pylori are: amoxicillin, clarithromycin, tetracycline and metronidazole/ tinidazole. (Essentials of pharmavology KD Tripathy,6th edition,pg no.637)