Medicine Name: Airtec SF 250 Instacap. Composition: Salmeterol (50mcg) + Fluticasone Propionate (250mcg). Side Effects: Tremors Headache Palpitations Muscle cramp Vomiting Nausea Cough Upper respiratory tract infection Fungal infection of mouth Pharyngitis Bronchitis inflammation of the airways Voice change Pneumonia.