Seretide Diskus 50/250mcg is a prescription inhaler medication manufactured by GlaxoSmithKline (GSK). It contains two active ingredients - salmeterol and fluticasone propionate - delivered as a dry powder for inhalation. Each dose provides 50mcg salmeterol and 250mcg fluticasone propionate, with 60 doses per device. This medication is administered through oral inhalation. The Diskus device is a dry powder inhaler that delivers precise doses of medication. The purple-colored packaging clearly indicates the strength (50/250 mcg) and dose count (60 doses). As this is a prescription medication, it should only be used under medical supervision and according to prescribed instructions.