$Pfizer (PFE.US)$ is recalling a blood pressure drug because of elevated levels of a potential cancer-causing impurity.
The company warned consumers on Monday of several tainted lots of Accuretic and two other versions of the drug — quinapril and hydrochlorothiazide tablets – because of the presence of a nitrosamine above the Acceptable Daily Intake level.
"Nitrosamines are common in water and foods, including cured a...