Evaluating the therapeutic efficacy, tolerability, and safety of an aqueous extract of Costus speciosus rhizome in acute pharyngitis and acute tonsillitis

From the Department of Otolaryngology - Head and Neck Surgery (Bakhsh, Al-Khatib, Al-Muhayawi), Faculty of Medicine, the Department of Biological Sciences (ElAssouli), King Fahd Medical Research Center, and the Department of Hematology (Elfiky, Mourad), Yousef Abdullatif Jameel Research Chair for Prophetic Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia

From the Department of Otolaryngology - Head and Neck Surgery (Bakhsh, Al-Khatib, Al-Muhayawi), Faculty of Medicine, the Department of Biological Sciences (ElAssouli), King Fahd Medical Research Center, and the Department of Hematology (Elfiky, Mourad), Yousef Abdullatif Jameel Research Chair for Prophetic Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia

From the Department of Otolaryngology - Head and Neck Surgery (Bakhsh, Al-Khatib, Al-Muhayawi), Faculty of Medicine, the Department of Biological Sciences (ElAssouli), King Fahd Medical Research Center, and the Department of Hematology (Elfiky, Mourad), Yousef Abdullatif Jameel Research Chair for Prophetic Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia

From the Department of Otolaryngology - Head and Neck Surgery (Bakhsh, Al-Khatib, Al-Muhayawi), Faculty of Medicine, the Department of Biological Sciences (ElAssouli), King Fahd Medical Research Center, and the Department of Hematology (Elfiky, Mourad), Yousef Abdullatif Jameel Research Chair for Prophetic Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia

From the Department of Otolaryngology - Head and Neck Surgery (Bakhsh, Al-Khatib, Al-Muhayawi), Faculty of Medicine, the Department of Biological Sciences (ElAssouli), King Fahd Medical Research Center, and the Department of Hematology (Elfiky, Mourad), Yousef Abdullatif Jameel Research Chair for Prophetic Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia

From the Department of Otolaryngology - Head and Neck Surgery (Bakhsh, Al-Khatib, Al-Muhayawi), Faculty of Medicine, the Department of Biological Sciences (ElAssouli), King Fahd Medical Research Center, and the Department of Hematology (Elfiky, Mourad), Yousef Abdullatif Jameel Research Chair for Prophetic Medicine, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia