Pfizer is voluntarily recalling five (5) lots of Accupril (Quinapril HCl) tablets distributed by Pfizer to the patient (consumer/user) level due to the presence of a nitrosamine, Nnitroso-quinapril, observed in recent testing above the Acceptable Daily Intake (ADI) level.

http://www.fda.gov/safety/recalls-market-withdrawals-safety-alerts/pfizer-voluntary-nationwide-recall-lots-accuprilr-quinapril-hcl-due-n-nitroso-quinapril-content