Naloxone HCl Nasal Spray is an opioid antagonist indicated for the emergency treatment of known or suspected opioid overdose, as manifested by respiratory and/or central nervous system depression. Naloxone HCl Nasal Spray is intended for immediate administration as emergency therapy in settings where opioids may be present. Naloxone HCl Nasal Spray is not a substitute for emergency medical care.
IMPORTANT SAFETY INFORMATION
Naloxone HCl Nasal Spray is contraindicated in patients known to be hypersensitive to naloxone hydrochloride or to any of the other ingredients.
Seek emergency medical assistance immediately after initial use, keeping the patient under continued surveillance.
WARNINGS AND PRECAUTIONS
- Risk of Recurrent Respiratory and CNS Depression: Due to the duration of action of naloxone relative to the opioid,
keep patient under continued surveillance and administer repeat doses of naloxone using a new nasal spray with each dose,
as necessary, while awaiting emergency medical assistance.
- Risk of Limited Efficacy with Partial Agonists or Mixed Agonists/Antagonists: Reversal of respiratory depression caused
by partial agonists or mixed agonists/antagonists, such as buprenorphine and pentazocine, may be incomplete.
Larger or repeat doses may be required.
- Precipitation of Severe Opioid Withdrawal: Use in patients who are opioid dependent may precipitate opioid withdrawal.
In neonates, opioid withdrawal may be life-threatening if not recognized and properly treated. Monitor for the development
of opioid withdrawal.
- Risk of Cardiovascular (CV) Effects: Abrupt postoperative reversal of opioid depression may result in adverse CV effects.
These events have primarily occurred in patients who had pre-existing CV disorders or received other drugs that may have similar
adverse CV effects. Monitor these patients closely in an appropriate healthcare setting after use of naloxone hydrochloride.
The following adverse reactions were observed in a Naloxone HCl Nasal Spray clinical study: increased blood pressure, constipation, toothache, muscle spasms, musculoskeletal pain, headache, nasal dryness, nasal edema, nasal congestion, nasal inflammation, rhinalgia, and xeroderma.
Please see full Prescribing Information for additional safety information.
To report SUSPECTED ADVERSE REACTIONS, contact Emergent BioSolutions Inc. at 1-888-511-0081 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch