Patients over 18 years of age with cough and positive reverse transcriptase polymerase chain reaction (RT-PCR) test for COVID-19 with the onset time of less than 5 days were included in the study.
Exclusion criteria were as follows: pregnancy or breastfeeding, history of allergy to noscapine, licorice, diphenhydramine, morphine or other excipients of the study medications, history of seizure, diarrhea or diabetes, consumption of warfarin, benzodiazepines, opioid agonists, and other antitussive medications.
Exclusion criteria were as follows: pregnancy or breastfeeding, history of allergy to noscapine, licorice, diphenhydramine, morphine or other excipients of the study medications, history of seizure, diarrhea or diabetes, consumption of warfarin, benzodiazepines, opioid agonists, and other antitussive medications.
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