A Clinical Trial to Evaluate the Safety and Tolerability of Dexlansoprazole Injection in Healthy Chinese Adults（Part 2）

Inclusion Criteria: * Age ≥18 Years; * Male (weight ≥50kg) or female (weight ≥45kg); * Body mass index (BMI) between 19\~28 kg/m2; * In good health as determined by a physician/investigator based on medical history, vital signs, electrocardiogram (ECG), laboratory tests and physical examination findings at screening; * Subject who totally understand the aim and progress of this clinical trial, make decision by his/her free will, and signed a consent form to follow the progress; * Female participant of childbearing potential must have a negative serum pregnancy test at screening, and agrees to use routinely adequate contraception from signing of informed consent throughout the duration of the study and for 6 months following the last dose of study drug; * Male participant agrees to use adequate contraception and have no plan to donate sperm from signing of informed consent form throughout the duration of the study and for 6 months after the last dose of study drug; * In the opinion of the investigator, the participant is capable of understanding and complying with protocol requirements. Exclusion Criteria: * Positive breath test result for H pylori at Screening; * Cannot tolerate placement of the pH probe; * Has poor peripheral venous access; * Allergy/hypersensitivity (including drug allergy) which is deemed relevant to the trial as judged by the investigator; * Subject who has past or present history of any serious diseases, including (but not limited to) digestive, cardiovascular, respiratory, urinary, musculoskeletal, endocrine, psychiatric or neurological, hematologic, immunological or metabolic disorders; * Human immunodeficiency virus(HIV), hepatitis B virus(HBV), or syphilis positive; * Has a history of drug abuse (defined as any illicit drug use) or a history of alcohol abuse (defined as alcohol consumption exceeding 14 units per week) within 6 months preceding this study or is unwilling to agree to abstain from alcohol and drugs throughout the study; * Heavy smokers (\>5 cigarettes per day) within 6 months preceding this study or is unwilling to agree to abstain from smoking throughout the study; * Participation in another study with an investigational drug within the last 3 months preceding this study; * Blood donation within the last 2 months (\>= 400 ml), or have a plan to donate blood within 1 month after this study; * Intake of any other drug which might influence the results of the trial during two weeks previous to the start of the study.