IRCT20141001019359N13 IRCT 2022-04-10 Bojnourd University of Medical Sciences Comparison of the Effectiveness of Ginger with Ondansetron on Nausea and Vomiting after Cesarean Section Comparison of the Effectiveness of Ginger with Ondansetron on Nausea and Vomiting after Cesarean Section under Spinal Anesthesia with Fentanyl; a Randomized clinical Trial 2022-05-22 anticipated 90 Complete https://irct.ir/trial/62788 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Prevention, Randomization description: Sampling in this study will be that first in order to enter the study patients will be in the form of non-random sampling of the type "available" and then divide them into three groups by randomly assigned blocking using a web-based system. Random blocking at www.randomization.com will be done in 15 blocks of 6. So that in each block, there are 2 people in the first group (A), two people in the second group (B) and two people in the third group (C). After a random sequence was identified in all blocks, cards were written by writing C, B, and A to indicate which group each patient was assigned to, and by someone other than the research team from 1 to 90 in all blocks, respectively. They are numbered and these cards are placed in sealed non-transparent envelopes, respectively. Then, in order to hide the random allocation, when the patient visits, the opaque sealed envelope will be opened and then one by one, it will be determined for each sample of the relevant group, Blinding description: None of the participants in the study will be aware of the randomization list, and in order to conceal the randomization process, the groups will be placed in closed envelopes in the reception area and will be assigned to the eligible individuals who enter the study. Also in all three groups; Patients receive the same intervention (receiving two capsules of the same shape one hour before the operation). Therefore, the study is double-blind so that patients and the outcome assessment specialist are unaware of the status of the three groups assigned to the study. 3 nausea and vomiting. Intervention 1: Intervention group 1: Patients receive two capsules of ginger (each capsule containing one gram of ginger) orally with 100 cc of city water one hour before surgery. Intervention 2: Intervention group 2: Patients receive two ondansetron tablets (each containing 4 mg of ondansetron). (Due to the blindness of the study, ondansetron tablets are placed inside the capsule cover in the same shape as other interventions). Intervention 3: Control group: Patients receive two placebo capsules (using the same dosage form) orally with 100 cc of city water one hour before surgery. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is no further information