Mylan Pharmaceuticals ULC Canada, in consultation with Health Canada, is voluntarily recalling all lots of its Mylan-Nitro Spray 0.4 mg/metered dose due to the product missing the "dip tube," which is part of the pump component. A missing "dip tube" could pose a potential problem with the delivery of nitroglycerin to the patient. This defect may lead patients to believe they are receiving the nitroglycerin, when in fact they are unable to access it. Not receiving nitroglycerin could place them at risk for either a delay in treatment for their angina or of suffering a heart attack.