The Fentanyl patch is one of the most powerful painkillers on the market, so you'd think that product quality would be of utmost importance. Sadly, Fentanyl product-quality problems caused 802 serious adverse events in 2012 alone, according to the Institute for Safe Medication Practices (ISMP).
In 2009, a nursing home resident was rushed to the hospital, barely clinging to life. Acting on limited information, the hospital staff attempted to treat the 46-year-old for a heart attack, but he died soon after. Postmortem toxicology tests revealed that the man did not die from an ordinary heart attack, but a morphine overdose.