Naloxone blocks or reverses the effects of opioid medication, including extreme drowsiness, slowed breathing, or loss of consciousness. An opioid is sometimes called a narcotic.
Naloxone is used to treat a narcotic overdose in an emergency situation. This medicine should not be used in place of emergency medical care for an overdose.
Naloxone is also used to help diagnose whether a person has used an overdose of an opioid.
Incidence not known
Abdominal or stomach cramps
difficult or troubled breathing
fast, pounding, or irregular heartbeat or pulse
increased blood pressure
increased or excessive unconscious or jerking movements
irregular, fast or slow, or shallow breathing
nausea or vomiting
pale or blue lips, fingernails, or skin
(injectable solution, compounding powder, nasal spray)