Role of Hyoscine Bromide in Latent and Active Labor

Randomized, Masked, Placebo-controlled Clinical Trial to Evaluate the Effects of a Single Intravenous Dose of Hyoscine Bromide on the Duration and Pain in Latent and Active Labor

The purpose of this study is to determine whether hyoscine bromide decreases the duration of the active phase of labor.

Inclusion Criteria:

• Age: 18 or more.
• Term pregnancy.
• Cephalic presentation.
• Oxytocin perfusion not present at the time of inclusion.
• Uterine dynamic established.
• Abscence of high risk factors or very high risk factors for pregnancy.
• Written informed consent

Exclusion Criteria:

• Induction of labor.
• Presence of risk factors.
• Patients with hypersensitivity to the active substance or to any of the excipients or any contraindication reflected in technical report.