Responding to a 911 call reporting the possible overdose at about 2 p.m., Seventh Precinct officers found an 18-year-old man -- incoherent with shallow breathing and a very weak pulse -- in the back yard of a home on Patchogue Avenue, police said.
Officer Michael Trotti, assisted by Officers Robert Tedesco and John Priest, administered naloxone hydrochloride into the man's nose, police said.
The antidote, also known as Narcan, is administered through the nose to reverse the effects of heroin and other opiates.
The man was revived and taken to Brookhaven Memorial Hospital Medical Center for treatment. He was then charged with possession of a hypodermic instrument and criminal possession of a controlled substance, police said.
Police did not immediately identify the man.
The Fourth, Sixth and Seventh Police Precincts and Marine Bureau are participating in Suffolk County's pilot program that aims to put the drug-overdose antidote in the hands of thousands of EMTs, saving 23 lives in its first 10 weeks, a county official said last month.