IRCT20120506009651N4 IRCT 2022-06-07 Shiraz University of Medical Sciences Effect of Polypodium in treatment of Coronavirus disease Evaluation of the effectiveness of a Polypodium root preparation on the management of Covid-19 mild to moderate symptoms a clinical trial 2022-05-28 anticipated 40 Complete https://irct.ir/trial/61557 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Patients will be randomized into the treatment and control groups based on simple randomization method and table of random numbers will be used, Blinding description: The researcher, assessor and data analyst will be blind to the random assignment of patients in groups. 3 COVID-19 infection. Intervention 1: Intervention group: Polypodium root decoction (4 grams of herbal powder in 250 ml of boiling water), received twice a day for a week and followed up one week after treatment. In terms of response to treatment, which includes the improvement and reduction of clinical symptoms in COVID-19 patients compared to the pre-treatment status of each patient. Intervention 2: For 7 days, no intervention will be performed on patients in the control group except for the usual treatment protocol. Gastrointestinal symptoms are recorded at the beginning of the study and before treatment, and during 7 days, response to treatment, including improvement and reduction of clinical symptoms in COVID-19 patients, is assessed relative to the pre-treatment status in each patient. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is No more information.