 Illegal fentanyl is up to 100 times more potent than morphine. A tiny amount is all it takes to cause an overdose. It could be in your drugs, and you wouldn't be able to see it, taste it, or smell it. Learn more at cdc.gov slash stopoverdose. We deliver your morning news right to your smartphone. Download the free Seville 107.5 app from the Google Play or iTunes Store and wchv.com.