Two weeks regimen of Clarithromycin ( 2500 mg ) + Amoxicillin ( 21 gr ) + omeprazole ( 220 mg ) was administered for group A of patients while group B got a 10 days regimen of Azithromycin ( 1250 mg ) + 14 days Amoxicillin ( 21 gr ) + omeprazole ( 220 mg ) .