The placebo contains the non-active carrier of herbal combination that has no pharmacological activity.

This outcome measures how long it takes for a patient's symptoms to improve from the time of hospital admission based on anamnesis (patient history). Anamnesis includes information such as the duration and severity of the symptoms experienced by the patient. The improvement is tracked through daily assessments, comparing the patient's initial complaints upon admission to their status over time, noting any reduction in symptoms such as fever, cough, fatigue, or difficulty breathing. The goal is to quantify the days required to see a noticeable improvement in clinical symptoms.

This outcome combines two critical assessments:

WHO Ordinal Scale: This scale typically ranges from 0 (uninfected) to 8 (death), with each level corresponding to the patient's clinical status (e.g., mild disease, severe disease requiring oxygen support, or critical illness requiring mechanical ventilation). The improvement is measured by tracking the reduction in ordinal score over time, indicating a recovery or a shift toward a less severe category.

The EQ-5D-5L covers five dimensions (mobility, self-care, usual activities, pain/discomfort, and anxiety/depression) and has five response levels for each dimension, ranging from no problems to extreme problems. Improvement in this measure indicates better overall health and well-being. The EQ-5D-5L also includes a visual analog scale (VAS) where patients rate their overall health from 0 (worst possible health) to 100 (best possible health).

This outcome measures how long the patient's respiratory rate stabilizes and returns to normal levels. A normal respiratory rate in adults is typically 12 to 20 breaths per minute. This measure focuses on how many days it takes for the respiratory rate to reduce to or below 20 breaths per minute (indicating improvement from conditions such as tachypnea or labored breathing). Daily monitoring is required to track this change, as an elevated respiratory rate is a common symptom of respiratory distress, infection, or severe illness.