Inclusion Criteria:  Healthy adults 18-55 years Males or non-pregnant, non-lactating females Body mass index (BMI): ≥18.5 kg/m2 and ≤32.0 kg/m2 Normal blood pressure Normal lab tests  Exclusion Criteria:  History or presence of current cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrine, autoimmune, hematologic, neoplastic, or neurological disorders History of drug allergy or hypersensitivity to penicillin, cephalosporin, or beta-lactam antibacterial drug Use of antacid medications Abnormal ECG or history of clinically significant abnormal rhythm disorder Positive alcohol, drug, or tobacco use/test