AMOXYCILLIN 400 MG +CLAVULANIC ACID 57MG WITH STERILE WATER FOR RECONSTITUTION StayHappi Amoxycillin + Clavulanic Acid 400mg/57mg Dry Syrup. StayHappi Amoxycillin + Clavulanic Acid 400mg/57mg Dry Syrup is an antibiotic medicine that helps treat bacterial infections of the ear, nose, throat, chest, lungs, teeth, skin, and urinary tract