Asthma inhaler you can't overdose on

New Inhaler
A Revolutionary inhaler has been launched which tells asthmatics whether they have taken the correct dose of drug.

Until now it has not been possible for an asthmatic to tell if their treatment has been properly deposited in the lungs.

The new device - called the Novolizer - has a red-light indicator to confirm that the patient has inhaled the drug right into the lungs, by measuring how deep a breath they have taken.