Here is a detailed guide on how to use an inhaler and instructions for getting the most out of your medication.

Inhalers typically expire after a year. Although expired inhalers are safe to use, the medicine won't be as effective.

GlaxoSmithKline Plc said on Wednesday the U.S health regulator approved its lung disease drug Trelegy Ellipta for expanded use, making it the first inhaler delivering three drugs at once to be ...