STAMFORD-Residents can learn how to administer the opiate antidote Narcan at a training session at Government Center in Stamford on Thursday at noon. The session is being held by Communities 4 Action and Silver Hill Hospital. Communities 4 Action promotes substance-abuse prevention and mental health services in the region. The session will be attended by Mayor David Martin and Director of Public Safety Ted Jankowski in the Government Center lobby. With the opioid epidemic raging in Connecticut, Stamford police officers in July were given Narcan for the first time to carry with them while on duty.