The page lists warning signs of an overdose (especially from sedative or opioid drugs), such as unresponsiveness, blue/grey lips or fingernails, tiny pupils, slow or irregular breathing, choking sounds, confusion, and vomiting. It also provides guidance on what to do: check their breathing, put them in the recovery position, call emergency services, and, if available, administer naloxone (which reverses opioid overdoses).