What do people experience after they’ve been given Narcan?

When used on opioid-dependent individuals, Narcan can cause people to experience withdrawal symptoms. These effects include, but are not limited to: agitation, restlessness, nausea and constant vomiting, abdominal pains and diarrhea, fever and sweating, body aches and unusual muscle tenderness, palpitations or irregular heartbeat, anxiety and fidgeting, and/or shivering and tremors