IRCT20160523028008N5 IRCT 2020-12-15 Hamedan University of Medical Sciences Effect L-Arginine and intravenous fluid Therapy in Oligohydramnios Comparison of Effect L-Arginine and intravenous fluid Therapy in Oligohydramnios 2020-05-21 anticipated 50 Complete https://irct.ir/trial/52784 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: The patients will be randomly assigned to the intervention and control groups using block randomization The patients will be randomly assigned to the intervention and control groups using block randomization Arrangement of the randomization process: 1) Determining the volume of each block (quadruple blocks) 2) Preparing the list of the blocks and assigning a number (between 1 and 6 ) to each of them 3)Choosing random numbers between 1 and 6 4) Defining the treatment assignment list, Blinding description: the statistical analyser will be unaware of the type of intervention performed in the groups. 2-3 Oligohydramnios. Intervention 1: Intervention group: L-arginine at a dose of 3 grams twice a day with oral fluid therapy or, if possible (not suffering from gestational hypertension), 3 liters of inject able lactate ringer in 24 hours. Intervention 2: Intervention group: Liquid therapy orally 10 to 15 glasses (100 cc) or 3 liters of inject able ringer lactate in 24 hours. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is no further information"