About this trial
The investigators think that calcium carbonate can act as an assistive medication to improve contractions during labor.
Eligibility criteria
Qualifiers
18 years or older
Nulliparas (no prior pregnancy lasting 20 weeks or greater of gestation)
Gestational age above 36 weeks, at enrollment
Present for induction or augmentation of labor inclusive of medical indication, elective induction at greater than 39 weeks' gestation, trial of labor after cesarean
Disqualifiers
Unable to understand or read English
Presence of tachysystole (defined as more than 5 contractions in 10 minutes averaged over 30 minutes), recurrent variable or late fetal decelerations, and bradycardia in the prior 30 minutes before enrollment
Non-vertex presenting fetus at enrollment
Planned for cesarean delivery or contraindication to labor by institutional policy (e.g., placenta previa, vasa previa, active genital herpes infection, previous transmural myomectomy)
Trial design
Treatments tested in this trial
- Calcium Carbonate 500 MG
- Standard Dose Synthetic Pitocin