IRCT20200611047727N5 IRCT 2023-02-21 Shahid Beheshti University of Medical Sciences Investigating the effect of using GreenNature Deep Lung Support product in COPD patients Investigating the effect of using the GreenNature Deep Lung Support product on the clinical condition of patients with COPD exacerbation 2023-03-21 anticipated 60 Complete https://irct.ir/trial/68463 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: Simple randomization method, individual randomization unit and random number table randomization tool. For randomization, we use a table consisting of random digits from 0 to 9. Each of the figures in this table is repeated the same on average. We start from the first row of the table and move down row by row. For three treatments, we put numbers 1 to 3 for treatment A, numbers 4 to 6 for treatment B, and numbers 7 to 9 for treatment C. We continue the above process until three groups are completed, Blinding description: In order to prevent any possible complications, the doctor and clinical caregiver are fully aware of the assignment of treatment groups. Participating patients and researchers responsible for data collection and analysis are not aware of the allocation of different study groups. 3 Chronic obstructive pulmonary disease. Intervention 1: Control group: patients in the control group receive a placebo capsule daily. Intervention 2: Intervention group: Patients of this group receive one deep lung support capsule made by DayGgen Pharmed company orally and once a day.The chemical composition of this medicine includes the dry extract of Andrographis paniculata, Echinacea purpurea, Eriobotrya japonica, Fritillaria cirrhosa, Olea europaea, Scutellaria baicalensis, and taraxacum officinale. Intervention 3: Intervention group: The patients of this group receive three capsules of deep lung support made by DayaGen Pharmed orally three times a day. The chemical composition of this medicine includes the dry extract of Andrographis paniculata, Echinacea purpurea, Eriobotrya japonica, Fritillaria cirrhosa, Olea europaea, Scutellaria baicalensis, and taraxacum officinale. No - There is not a plan to make this available Justification or reason for not sharing IPD is There is no further information.