Intravenous Ferric Carboxymaltose (FCM)
DrugParticipants assigned to this arm will receive intravenous (IV) ferric carboxymaltose (Ferinject) administered using a standardized, conservative volume and rate protocol to optimize safety and tolerability. Each 500 mg dose of Ferinject (equivalent to 10 mL of solution) will be aseptically diluted in 250 mL of sterile 0.9% Normal Saline (NS). This configuration achieves a final elemental iron concentration of approximately 2 mg/mL, adhering precisely to the manufacturer's strict chemical stability threshold, delivered over a minimum duration of 15 minutes. Administrations will be performed exclusively in a controlled clinical environment equipped with immediate cardiopulmonary resuscitation facilities. Participant vital signs, including blood pressure and heart rate, will be documented immediately prior to initiation, at the 5-minute mark, upon completion, and throughout a mandatory 30-minute post-infusion observation period to monitor for potential hypersensitivity or adverse reactio