To answer your question, the appropriate dose of azithromycin PO for Amaan may be different from the dose that was given intravenously to him. It is possible that the appropriate dose of azithromycin PO for Amaan could be higher or lower than the dose given intravenously, depending on various factors such as his age, weight, medical history, and the severity of his condition. It is important to consult with a healthcare professional to determine the appropriate dose of azithromycin for Amaan based on his individual circumstances.