Fig. 6From: Recent progress on drugs discovery study for treatment of COVID-19: repurposing existing drugs and current natural bioactive moleculesSome parts of medicinal plants are used as traditional herbal therapies to alleviate the symptoms of respiratory diseases, and the effectiveness of some of these remedies has been scientifically proven. However, there are other herbal remedies that have not been listed in international monographs [225, 226]. All pictures were obtained from the Google search engine and were not recognized as the author’s ownership or copyrightBack to article page