Why does swallowing difficulty require particular caution when using ferrous sulfate tablets?

With the Sandoz Limited product Ferrous Sulfate Tablets 200mg, swallowing difficulty raises concern about aspiration causing bronchial necrosis and potentially delayed coughing, haemoptysis, bronchostenosis or pulmonary infection, so treatment requires individual aspiration-risk assessment, consideration of alternative formulations and medical attention for suspected aspiration.