The aim of this study is to determine the effect of oral chamomile capsules on obstetrics outcomes in post term pregnancy. This study will be accomplished randomized double blind clinical trial on low risk pregnant women with gestational age 41 weeks (40 weeks completely) based on LMP or ultrasound in first trimester of pregnancy, no history of recurrent spontaneous abortion, infertility and undesirable outcomes of pregnancy, single pregnancy, cephalic presentation, alive fetus, weight of fetus between 2500-4000 gram based on physical examination or ultrasonography, cervical bishop score less than 4, normal pelvic, normal BPP and NST, no sensivity to chamomile.
Exclusion criteria are mothers who consume them is less than one capsule per day, more than one care session is absent, and appears allergic symptoms.
Researchers would have attended to emergency ward and prenatal clinics of Shahid Akbar Abadi hospital. They will be selected who have inclusion criteria and give them informed consent and divided two groups with randomization.
Prenatal care will perform to 40 weeks completely. If conditions of mothers will be good, bottle of oral chamomile or placebo (corn starch) capsule with checklist for record time of eating capsules pay to her.
It would have been advised that they should take 3 capsules in a day for 7 days, since 40 weeks and 1 day. Standard dose of capsule will be fixed with pilot study on 10 participants, after that response dose is determined by traditional medicine specialist.
Researcher is in contact with mothers every day and searches their obstetrical condition. They have to go to clinics for every 2 days. Enough education will be give for considering fetal movement 3 time in a day, it is mentioned them if they consider alarm symptoms like leakage, bleeding, sever abdomen pain, decrease fetal movement. They should record time of occurring them and call with researcher.
Researcher will go to beside of mothers and record complete information and examination in questionnaire. When mother go to delivery room, vaginal examination consist of dilatation, effacement, effacement, station will record and draw partograph. Also the interval between eating first capsule and start delivery symptoms will record. During labor, these items will be recorded: Dilatation, effacement, during of active phase and labor stage. Fetal distress, meconium discharge, placenta abruption during labor, abnormal bleeding after childbirth, cesarean rate and cause of it, apgar score in first and fifth minutes of born and infant's hospitalization rate in NICU will record.
All information record in SPSS software and analyzed with statistical exams. All of participants will assessment for days when start capsules. If symptoms of delivery don't start and there is no respond to treatment, management of delivery steps will performed according to guideline of Iran health ministry.