IRCT20150725023332N6 IRCT 2023-02-28 Shahid Beheshti University of Medical Sciences Investigating the effect of bromelain in patients with covid-19 Investigating the effect of bromelain on inflammatory and immunological indicators of patients with covid-19 2021-09-22 anticipated 100 Complete https://irct.ir/trial/67773 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: With simple randomization and using random numbers table and individual randomization unit. For randomization, we use a table that consists of random digits from 0 to 9. Each of the figures in this table is repeated the same on average. There is no discernible pattern of numerical values. In this method, each figure is assigned to a treatment group. We start from the first row of the table and move down row by row. For two treatments, we put numbers 0 to 4 for treatment A and numbers 5 to 9 for treatment B. The numbers in the first row of the table are as follows: 0,5,2,7,8,4,3,7,...... Now, based on the above numbers, we have the following allocation for people: A, B, A, B, B, , Blinding description: In order to prevent any possible complications, the main therapist is aware of the assignment of treatment groups. The patients participating in the study were not blinded to the treatment they received. The experts responsible for data collection and analysis are not aware of the allocation of different study groups. 3 COVID-19. Intervention 1: Intervention group: Patients receive one Anahil capsule containing 500 mg of bromelain every 12 hours. Intervention 2: Control group: patients receive one placebo capsule every 12 hours. 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 There is no further information