High-blood pressure drug shortage highlights wider problem in Canada

The recent shortage of a medication used to treat high blood pressure and other heart conditions is calling attention to the greater problem of drug shortages in Canada. In July, pharmaceutical company Bayer Canada reported it was experiencing shortages of its extended-release Adalat XL tablets in the 20 milligram and 60 milligram dosages. Adalat XL, or nifedipine, belongs to a class of medications called calcium channel blockers that are used to control high blood pressure and prevent chest pai