This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gastrointestinal tract, Subject name: Pharmacology
Drug not used in H.pylori is: 
Select and explain. 
A. Metronidazole, B. Omeprazol, C. Mosapride, D. Amoxicilline
C: Mosapride
Answer: C: Mosapride 
Explanation: Mosapride is a 5-HT4 agonist used for GERD.other drugs given in the option are used for H.pylori .( ref KDT 6/e p645-646)