IRCT20201009048971N1 IRCT 2020-12-27 Karaj University of Medical Sciences Thyme and lavandula angustifolian in treatment of acute mountain sickness AMS Evaluation of the effects of thyme and lavendula angustofuLian for treatment and control of high altitude mountain sickness in climbers 2020-11-05 anticipated 30 Complete https://irct.ir/trial/51509 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: Patients are allocated into the case and control groups using permuted balance block randomization. The blocks are four. Using STATA software, random numbers are generated from 1 to 6. Another number is generated when the previous number is more than 6, without considering it. An individual prepare the random numbers and put them in pockets with a five-digit serial number. All pockets open after including a patient, and the patient allocates to a group. N/A acute moution sickness. Intervention 1: Intervention group: prescription of herbal syrups: Lavandula angustifolia at the dose of 10000 mg twice a day is going to be prescribed within the 48 hours (produced by Alis company). So as to prescribe Thymus, Thymus vulgaris is going to be prescribed at the dose of 10 mL three times a day within the 48 hours (produced by Kimiagar company). both herbal drugs are going to be prescribed based on drug manufacturer instruction. Intervention 2: Control group: Acetazolamide is going to be prescribed at the dose of 500 mg twice a day within 48 hours. No - There is not a plan to make this available Justification or reason for not sharing IPD is Because we didn’t finalized our data