Portland police warn of counterfeit pain pills that can cause fatal overdoses The pills look like oxycodone tablets but may contain fentanyl, Portland police say. Share Portland police issued a warning Tuesday about pills that look like prescription pain medication but contain fentanyl and may have caused a fatal overdose. An unresponsive woman was found Sunday in a car outside Maine Medical Center, according to police. Doctors were unable to revive her and she was pronounced dead. People who were with the woman said she had taken a “blue pill” before she became unresponsive. Investigators said there has been an increase in the circulation of pills that appear to be prescription 30 mg oxycodone tablets, but they also contain fentanyl, a powerful synthetic opioid with effects similar to heroin. It is often made illegally and sold with heroin or cocaine, and it is a leading cause of fatal drug overdoses in Maine.