NALOXONE HYDROCHLORIDE 4 mg/.1mL Spray, 2 vials — NDC 45802-578-84 (Billing 45802-0578-84)
This is a package of 2 vials of NALOXONE HYDROCHLORIDE 4 mg/.1mL Spray from Padagis Israel Pharmaceuticals Ltd, marketed since Jul 2023 and currently FDA-listed; retail pharmacies pay about $17.18 per vial (NADAC). It is the main listing for this product, which comes in 2 package sizes.
Identity & classification
Regulatory identifiers FDA, NLM and CMS codes for this package
Drug-database identifiers Medi-Span GPI and First Databank GCN / HICL / AHFS classification
- GSN (GCN sequence number): 075222
- GCN: 40233
- GPI-14 (Medi-Span): 93400020100920
- HICL (First Databank): 001874
- AHFS class code: 28:10.00.00
- RxCUI (RxNorm): 1725059
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 1, 2026
- RxNorm (NLM RxNav) · catalog refreshed Oct 1, 2026
- Medi-Span GPI (licensed)
- First Databank (licensed) · refreshed Oct 1, 2026
RxNorm drug class
This medicine belongs to the Opioid Antagonist class.
Where does this data come from?
- RxClass (NLM) · catalog refreshed Oct 1, 2026
Clinical
Naloxone nasal spray is used along with emergency medical treatment to reverse the life-threatening effects of a known or suspected opiate (narcotic) overdose. Naloxone nasal spray is in a class of medications called opiate antagonists. It works by blocking the effects of opiates to relieve dangerous symptoms caused by high levels of opiates in the blood.
Read the full MedlinePlus article ↗- It is an emergency medicine that reverses an opioid overdose. Signs include very slow or stopped breathing and being unresponsive. Some injection forms have extra hospital or milit...
- Follow the instructions that came with your product. Nasal sprays go into one nostril. Zimhi goes into the outer thigh. Call 911 right away. If the person does not wake up or slips...
- Naloxone can wear off before the opioid does. Breathing problems can come back. Stay with the person until emergency help arrives.
- Why do I still need to call 911 if they wake up?
Patient education
Supplement & herbal interactions
Some supplements/herbs that may interact with Naloxone Hydrochloride — tap one for details:
Where does this data come from?
- MedlinePlus (NLM) · refreshed Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 1, 2026
Ask a licensed pharmacist directly — free, answered by our team.
Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per ea | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | $17.177 | $34.35 / 2 vials |
| Medicaid paysCMS SDUD · 12 mo | $216.94 | $433.88 / 2 vials |
| Medicare drug plans payPart D · quarterly | No Part D plan price is available for this NDC in our data. | |
Where does this data come from?
- CMS NADAC weekly file · file of Sep 30, 2026
- CMS ASP pricing files · refreshed Sep 20, 2026
- CMS Medicaid State Drug Utilization Data · through Q1 2026
- CMS Part D plan pricing files · refreshed Sep 24, 2026
- VA National Acquisition Center price file
Packaging — all sizes for this product
| Package NDC | Description | Per unit | Per pack | Marketing start | Marketing end | Status |
|---|---|---|---|---|---|---|
| 45802-0578-84 You're viewing this Main listing | 2 VIAL, SINGLE-DOSE in 1 CARTON / .1 mL in 1 VIAL, SINGLE-DOSE | $17.18 / ea | $34.35 | 2023-07-30 | — | Active |
| 45802-0578-24 45802-578-24 | 24 VIAL, SINGLE-DOSE in 1 CARTON / .1 mL in 1 VIAL, SINGLE-DOSE | — | — | 2025-08-01 | — | Active |
In Medicaid, this is the most-dispensed pack of this product — about 100% of fills over the last four reported quarters. See all packs ↓
Pack size FAQ
What quantity is in this package?
How does this package differ from NDC 45802-0578-24?
What NDC number is used to bill for this package of NALOXONE HYDROCHLORIDE 4 mg/.1mL Spray?
Prices are the latest CMS NADAC pharmacy acquisition cost per NDC; per-pack figures are per-unit × pack quantity, shown only when the pack is denominated in the same measure NADAC prices.
Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Narcan 4 mg/.1mL 69547-0627-02 | Emergent | 2 vials | $16.449 | — | Availability likely | save 4% |
| Naloxone Hydrochloride 4 mg/.1mL 00480-3478-68 | Teva | 1 vial | $17.177 | — | Availability likely | — |
| Naloxone Hydrochloride 4 mg/.1mLthis 45802-0578-84 | Padagis | 2 vials | $17.177 | — | Availability likely | — |
| Naloxone Hydrochloride 4 mg/.1mL 46122-0812-71 | AMERISOURCE | 2 vials | $17.177 | — | Availability likely | — |
| Naloxone Hydrochloride 4 mg/.1mL 60219-2104-07 | Amneal | 2 vials | $17.177 | — | Availability likely | — |
| Naloxone Hydrochloride 4 mg/.1mL 68001-0645-45 | BluePoint | 2 vials | $17.177 | — | Availability likely | — |
| Naloxone Hydrochloride 4 mg/.1mL 69238-2104-07 | Amneal | 2 vials | $17.177 | — | Availability likely | — |
| Naloxone Hydrochloride 4 mg/.1mL 70677-1283-01 | Strategic | 2 vials | $17.177 | — | Availability likely | — |
| Naloxone Hydrochloride 4 mg/.1mL 00093-2165-68 | Teva | 1 vial | $34.270 | — | Discontinued | +100% |
| Narcan 4 mg/.1mL 69547-0353-02 | Emergent | 2 vials | $59.869 | — | Discontinued | +249% |
| Naloxone Hydrochloride 4 mg/.1mL 00363-2140-02 | Walgreen | 2 vials | — | — | FDA listed | — |
| Naloxone Hydrochloride 4 mg/.1mL 00591-3871-99 | Actavis | 1 vial | — | — | FDA listed | — |
| Naloxone Hydrochloride 4 mg/.1mL 42291-0493-02 | AvKARE | 2 vials | — | — | FDA listed | — |
| Narcan 4 mg/.1mL 50090-2422-00 | A-S | 2 vials | — | — | FDA listed | — |
| Naloxone Hydrochloride 4 mg/.1mL 50090-5908-00 | A-S | 2 vials | — | — | FDA listed | — |
| Naloxone Hydrochloride 4 mg/.1mL 50090-6710-00 | A-S | 2 vials | — | — | FDA listed | — |
| Naloxone Hydrochloride 4 mg/.1mL 50090-6963-00 | A-S | 2 vials | — | — | FDA listed | — |
| Naloxone Hydrochloride 4 mg/.1mL 51316-0210-02 | CVS | 2 vials | — | — | FDA listed | — |
| Narcan Naloxone Hci 4 mg/.1mL 51662-1240-01 | HF | 1 ml | — | — | FDA listed | — |
| NALOXONE HCl 4 mg/.1mL 51662-1620-01 | HF | 1 ml | — | — | FDA listed | — |
| Naloxone Hydrochloride 4 mg/.1mL 51662-1659-02 | HF | 2 vials | — | — | FDA listed | — |
| Naloxone Hydrochloride 4 mg/.1mL 67296-1928-02 | Redpharm | 1 vial | — | — | Discontinued | — |
| Narcan 4 mg/.1mL 71205-0528-02 | Proficient | 2 vials | — | — | FDA listed | — |
| Naloxone Hydrochloride 4 mg/.1mL 71205-0707-02 | Proficient | 2 vials | — | — | FDA listed | — |
| Naloxone Hydrochloride 4 mg/.1mL 72162-2376-02 | Bryant | 2 vials | — | — | FDA listed | — |
| Naloxone Hydrochloride 4 mg/.1mL 76420-0867-02 | Asclemed | 1 vial | — | — | FDA listed | — |
| Naloxone Hydrochloride 4 mg/.1mL 80425-0409-01 | Advanced | 2 vials | — | — | FDA listed | — |
| Narcan 4 mg/.1mL 85766-0076-02 | Sportpharm | 2 vials | — | — | FDA listed | — |
| Naloxone Hydrochloride 4 mg/.1mL 85766-0228-02 | Sportpharm | 1 vial | — | — | FDA listed | — |
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA Orange Book · refreshed Sep 3, 2026
- CMS NADAC weekly file · file of Sep 30, 2026
Availability & generic status
This product is an FDA-approved generic. Other versions of the same drug are listed under Therapeutic equivalents, least expensive first.
Where does this data come from?
- FDA Orange Book · refreshed Sep 3, 2026
Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
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UNII F5UM2KM3W7
Benzalkonium chloride is a chemical compound that works as a preservative and antimicrobial agent in medications. It prevents bacterial and fungal growth in liquid formulations to keep the product safe during storage and use.
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UNII 7FLD91C86K
Edetate disodium is a chemical compound that binds and removes certain metal ions. In medicines, it acts as a preservative and stabilizer by preventing metals like calcium from interfering with the product's shelf life and consistency.
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UNII QTT17582CB
A strong acid used to adjust and maintain the proper pH level in liquid medicines, ensuring stability and preventing breakdown of active ingredients.
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UNII 451W47IQ8X
Sodium chloride is common table salt. It's used in medicines as a buffer to maintain proper pH, as a filler to add bulk, or to adjust the osmotic balance in liquid formulations.
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UNII 059QF0KO0R
Water is a liquid solvent that dissolves and mixes ingredients together in liquid medicines, syrups, and injections. It helps distribute the active drug evenly throughout the product.
5 inactive ingredients listed in the exact product block matched to this NDC.
Label-section wording can be broader than the structured product block and may mention additional formulation ingredients.
Where does this data come from?
ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.- FDA label on DailyMed · label index refreshed Oct 1, 2026
- FDA openFDA NDC Directory · synced Oct 1, 2026
Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
Why might an inactive ingredient be missing?
Can inactive ingredients matter?
Manufacturer & labeler
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- Drugs@FDA
FDA label — Drug Facts FDA SPL
🎯 Indications and Usage ▾
Uses • to “revive” someone during an overdose from many prescription pain medications or street drugs such as heroin • this medicine can save a life
⏱️ Dosage and Administration ▾
Directions EMERGENCY TREATMENT OF OPIOID OVERDOSE Important: • For use in the nose only • Do not test nasal spray device before use • 1 nasal spray device contains 1 dose of medicine • Each device sprays 1 time only Step 1: CHECK if you suspect an overdose: • CHECK for a suspected overdose : the person will not wake up or is very sleepy or not breathing well • yell “Wake up!” • shake the person gently • if the person is not awake, go to Step 2 Step 2: GIVE 1st dose in the nose • HOLD the nasal spray device with your thumb on the bottom of the plunger • INSERT the nozzle into either NOSTRIL • PRESS the plunger firmly to give the 1st dose • 1 nasal spray device contains 1 dose Step 3: CALL • CALL 911 immediately after giving the 1st dose Step 4: WATCH & GIVE • WAIT 2-3 minutes after the 1st dose to give the medicine time to work • if the person wakes up : Go to Step 5 • if the person does not wake up : • CONTINUE TO GIVE doses every 2-3 minutes until the person wakes up • it is safe to keep giving doses Step 5: STAY • STAY until ambulance arrives: even if the person wakes up • GIVE another dose if the person becomes very sleepy again • You may need to give all the doses in the pack For opioid emergencies, call 911 .
For questions on Naloxone HCl Nasal Spray 4 mg, call Padagis ® at 1-866-634-9120 or go to www.padagisnaloxone.com. Step 1 Step 2 Step 3 Step 4 Step 5
⚠️ Warnings ▾
Warning When using this product some people may experience symptoms when they wake up, such as shaking, sweating, nausea, or feeling angry. This is to be expected.
🧪 Active Ingredient ▾
Active Ingredient (in each spray) Naloxone hydrochloride 4 mg
🧪 Inactive Ingredients ▾
Inactive Ingredients benzalkonium chloride, edetate disodium, hydrochloric acid, sodium chloride, water
🎯 Purpose ▾
Purpose Emergency treatment of opioid overdose
📄 Package Label / Principal Display Panel ▾
Package/Label Principal Display Panel NDC 45802-578-84 Compare to NARCAN ® active ingredient Padagis Naloxone Naloxone HCl Nasal Spray 4 mg Emergency Treatment of Opioid Overdose Original Prescription Strength Easy to Use Can Save a Life Designed to Rapidly Reverse the Effects of a Life-Threatening Opioid Emergency 2 SINGLE-DOSE NASAL SPRAY DEVICES 0.003 FL OZ (0.1mL) EACH FOR USE IN NOSE ONLY DO NOT TEST NASAL SPRAY DEVICE BEFORE USE 1 NASAL SPRAY DEVICE CONTAINS 1 DOSE OF MEDICINE EACH DEVICE SPRAYS 1 TIME ONLY SAFE TO USE EVEN IF OPIOIDS ARE NOT PRESENT Distributed by Padagis ® Allegan, MI 49010 www.padagisnaloxone.com 64QJ8 RT C4 Product of USA 64Q00 RT QS5 carton