Compare Efficacy of Oxytocin Administrations on Postpartum Uterine Contractility

Inclusion Criteria: * Healthy, term pregnant female with a gestational age of 37-42 weeks (singleton) * Undergoing a planned primary and uncomplicated caesarean section (CS) for their first born under regional anaesthesia * Aged between 18 and 40 years (both inclusive) * Ability to communicate well with the Investigator and to comply with the requirements of the entire study * Willing to give informed consent in writing. Exclusion Criteria: * Being obese with BMI ≥35 before pregnancy * History of, or existing thromboembolic, cardiovascular or cerebrovascular disorder * History of cervical cancer * History of severe infection of the uterus * Previous surgery of the cervix or uterus or any other (previous) condition that could interfere with the measurement of uterine contractility * Any clinically significant abnormality following review of medical history, laboratory result and physical examination at screening as judged by the Investigator * Conditions or disorders that might affect the absorption, distribution, metabolism or excretion of any of the study medication * Contraindications for oxytocin use * Hypersensitivity to the active substances or to any of the excipients of the investigational product (test product or comparator drug) * Present use or use within 30 days before the start of the study medication of one or more of the following medications: antihypertensive drugs, anti-coagulant therapy, medication that could affect myometrial contractility, sex steroids, prostaglandins and its analogues, inhalation anaesthetics, vasoconstrictors/sympathomimetics and caudal anaesthetics, vasopressin-like drugs * Administration of any other investigational drug within 3 months before first dosing * Tobacco use (smoking or snuffing), currently or within the last 6 months before screening