HomeNDC LookupIngredientsAzelastine Hydrochloride › 46708-0506-06
AZELASTINE HYDROCHLORIDE .5 mg/mL Solution/ Drops — NDC 46708-0506-06 package photo

AZELASTINE HYDROCHLORIDE .5 mg/mL Solution/ Drops

by Alembic Pharmaceuticals Limited · 1 BOTTLE in 1 CARTON (46708-506-06) / 6 mL in 1 BOTTLE
NDC 46708-0506-06
🏷️ FDA NDC (as labeled) 46708-506-06 billing pads the product segment with a zero
Rx only Generic On market Non-controlled
🗂️ Data synced Jul 24, 2026 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →
⚠️
Other active recalls for Azelastine Hydrochloride (different manufacturers) — 1 · tap to view
These affect other manufacturers’ products for the same ingredient — not necessarily the exact NDC on this page.
Class II · May 28, 2025 — Lack of Assurance of Sterility (Apotex Corp.) · FDA recall D-0495-2025
Each entry is an official FDA enforcement report — look up any recall number in the FDA recall database ↗

🆔 Identity & classification

FDA NDC (as labeled) 46708-506-06
Product NDC 46708-506
11-digit billing NDC 46708050606
RxCUI 860805
UNII 0L591QR10I
Application # ANDA209620
SPL Set ID 753d7a69-b0da-4350-9dc5-97f26ebe5cc0
Established class (EPC) Histamine-1 Receptor Antagonist
Mechanism of action Histamine H1 Receptor Antagonists
DEA schedule Non-controlled
Marketing category ANDA
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2019-03-20
Route OPHTHALMIC
Dosage form SOLUTION/ DROPS
Substance AZELASTINE HYDROCHLORIDE
TE code (Orange Book) AT · RLD · RS
Why two NDCs? The FDA registers this code as 46708-506-06 — a 5-3-2 layout, and that's what's printed on the package and shown on DailyMed. For insurance claims, every NDC is standardized to a uniform 11-digit 5-4-2 format by adding a zero to the product segment → 46708-0506-06. Same drug, same package — only the format differs.
Where does this data come from?
Identifiers from the FDA openFDA NDC Directory and Structured Product Labeling; RxCUI from RxNorm (NLM); GPI from Medi-Span; GCN / HIC / AHFS / legend from First Databank.

🏷️ RxNorm drug class

This medicine belongs to the Histamine-1 Receptor Antagonist class.

Pharmacologic class Histamine-1 Receptor Antagonist
Drug family (ATC) Antiallergic agents, excl. corticosteroids, Other antihistamines for systemic use, Other antiallergics
How it works Histamine H1 Receptor Antagonists
Where does this data come from?
Therapeutic classes from RxNorm RxClass (U.S. National Library of Medicine) — Established Pharmacologic Class (FDA), ATC drug family (WHO) and mechanism of action, matched by this product’s RxCUI.

🏭 Manufacturer & labeler

LabelerAlembic Pharmaceuticals Limited
Application holderALEMBIC PHARMACEUTICALS LTD
FDA applicationANDA209620 (ANDA)
Labeler code46708
First marketedMar 2019
Product typeHuman Prescription Drug
Portfolio502 products on file
The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.

🩺 Clinical

📖 What it is MedlinePlus · NLM

Azelastine ophthlamic is used to relieve the itching of allergic pink eye. Azelastine is in a class of medications called antihistamines. It works by blocking histamine, a substance in the body that causes allergic symptoms.

Read the full MedlinePlus article ↗
📗 Our plain-language guide HelloPharmacist
  • These drops are used to relieve eye itching caused by allergic conjunctivitis — basically, itchy eyes from allergies. Azelastine is an antihistamine, so it works by blocking the ch...
  • You put one drop into each affected eye twice a day. Make sure you're only using these drops in your eye — they're not meant to be swallowed or injected. If you wear contact lenses...
  • Yes, temporary burning or stinging right after applying the drops is actually the most commonly reported side effect — it happens in about 1 in 3 people. It usually passes quickly....
  • My eyes burned after I put in the drops — is that normal?
📖 Read our full Azelastine Ophthalmic guide →
Where does this data come from?
Plain-language summary from MedlinePlus (U.S. National Library of Medicine); supplement & herbal interactions and nutrient depletion data from the Natural Medicines database; our full guide is HelloPharmacist editorial content.

🧪 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.

  • 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.
  • 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.
  • UNII 3NXW29V3WO
    Hypromellose is a plant-based thickener made from cellulose. It's used in medicines as a binder to hold ingredients together, a coating for tablets, and a thickener for liquids.
  • UNII 55X04QC32I
    A strong alkaline chemical used to adjust and maintain the pH balance of liquid medicines. It helps keep the medicine stable and ensures it stays effective during storage.
  • UNII 506T60A25R
    Sorbitol is a natural sugar alcohol derived from glucose. It serves as a sweetener, humectant, and bulking agent in medications to improve taste and help maintain moisture in the product.
  • 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.

6 inactive ingredients listed in the exact product block matched to this NDC.

Where does this data come from?
Data sourced from official FDA Structured Product Labeling (SPL) via DailyMedingredient 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.

Inactive ingredient FAQ

Are inactive ingredients the same for every manufacturer?
No. Inactive ingredients can differ by manufacturer, dosage form, strength, and package / product version.
Why might an inactive ingredient be missing?
Some SPLs do not provide a complete structured inactive-ingredient list, and older or unusual labels may only include the information in narrative text.
Can inactive ingredients matter?
Yes. They can matter for allergies, intolerances, dyes, gluten / lactose concerns, preservatives, and formulation differences — but confirm with a pharmacist or the manufacturer when it’s clinically important.

💲 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 systemPer mLPer package
Retail pharmacies payNADAC · weekly Not in the retail survey — common for institutional, discontinued, or low-volume packs.
Medicaid paysCMS SDUD · 12 mo No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data.
Medicare drug plans payPart D · Q2 2026 $1.79 $10.72 / 6 ml
Where does this data come from?
NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.

🔁 Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Azelastine Hydrochloride .5 mg/mL 47335-0938-90 Sun 1 bottle $0.908 FDA listed
Azelastine Hydrochloride .5 mg/mL 60505-0578-04 Apotex 1 bottle $1.005 AT Availability likely
Azelastine Hydrochloride .5 mg/mL 61314-0308-02 Sandoz 1 bottle $1.005 AT Availability likely
Azelastine Hydrochloride Ophthalmic Solution 0.05% .5 mg/mL 62332-0506-06 Alembic 1 bottle $1.005 AT Availability likely
Azelastine Hydrochloride .5 mg/mL 70069-0091-01 Somerset 1 bottle $1.005 AT Availability likely
Azelastine Hydrochloride .5 mg/mL 72266-0141-01 Fosun 1 bottle $1.005 AT Availability likely
Azelastine Hydrochloride .5 mg/mLthis 46708-0506-06 Alembic 1 bottle AT FDA listed
Azelastine Hydrochloride .5 mg/mL 68083-0287-01 Gland 1 bottle AT FDA listed
About this product: this is a generic version of the medicine. FDA equivalence ratings are shown when available, and other versions are listed above, least expensive first.
Where does this data come from?
Equivalents are other NDCs of the same ingredient, form and route from the openFDA NDC Directory, ranked least-expensive-first by NADAC. Therapeutic-equivalence (AB) ratings come from the FDA Orange Book; biologics use the FDA Purple Book for biosimilar & interchangeable status.

Availability & generic status

🏛️
2019
On the market since
Mar 2019
📍
2026
Currently FDA-listed
7 years listed
🔓
·
Generic on the market
this product is a generic
This is a generic drug

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?
Patents and exclusivity from the FDA Orange Book (small-molecule drugs), refreshed from public FDA data. Generic launch timing is an estimate, not a guarantee.

🔬 Reported adverse events (FAERS)

Read carefully: FAERS reports are voluntary and unverified. Counts are not incidence, do not establish causation, are subject to reporting bias, and cannot be used to compare one drug to another. Shown for signal context only. Reports for AZELASTINE HYDROCHLORIDE — the ingredient across all brands.

Top reported reactions

Treatment Failure783
Fatigue737
Dyspnoea707
Headache680
Cough614
Nausea560
Sinusitis502

Age at onset

Neonate2
Child45
Adolescent64
Adult1,636
Elderly1,214

Reporter sex

10,538 reports
Male · 31%
Female · 68%
Unknown · 0%

Serious outcomes

Hospitalization1,718
Death191
Disabling187
Life-threatening131
Reports over time (by year) — tap or hover for the count & year
2019 2021 2023 2026 1,522 0
Most recent year is provisional (FAERS lags ~3 months).
Where does this data come from?
Adverse-event reports from the FDA Adverse Event Reporting System (FAERS) via openFDA. FAERS reports are voluntary and unverified — counts are not incidence and don’t establish causation.

📦 Packaging — all sizes for this product

Package NDCDescription Marketing startStatus
46708-0506-06 You're viewing this 1 BOTTLE in 1 CARTON (46708-506-06) / 6 mL in 1 BOTTLE 2019-03-20 Active

🧭 About this NDC listing & data coverage

Finished prescription product
What data is (and isn’t) available for this NDC — tap to expand
NDC identity (package / product / labeler codes) ✓ Available
Labeler ✓ Available
Product & package description ✓ Available
Marketing category & status ✓ Available
Active ingredient / dosage form / route ✓ Available
FDA label (SPL via DailyMed) ✓ Available
Package photos ✓ Available
Inactive ingredients (structured) ✓ Available
NADAC pharmacy acquisition price (CMS) — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey.
Orange Book / therapeutic-equivalence data ✓ Available
HCPCS J-code billing crosswalk — Not published for this NDC Most self-administered / retail products have no J-code — that is normal.
Medicaid utilization (CMS SDUD) — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold.
“Not published” reflects what the public FDA / CMS / NLM sources provide for this exact package code — it is a property of the data feeds, not a judgment about the product.

Questions about this listing

Why is there no price listed?
The pricing shown on our NDC pages comes from CMS NADAC, a voluntary survey of retail community pharmacy invoices. CMS does not publish a NADAC for every NDC — packages outside the retail survey (institutional and hospital products, bulk packages, discontinued items, and many OTC items) may never receive one. A missing price reflects the survey's scope, not this product's actual cost, and does not mean the product is free or unavailable.
Is the NDC printed on the package the same as the 11-digit billing NDC?
Yes, they identify this exact package in different formats. The FDA registers it as 46708-506-06, which is what is printed on the packaging and shown on DailyMed. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero: 46708-0506-06, written without dashes as 46708050606. The Identity section at the top of this page lists every form of this code.
What do the three segments of this NDC mean?
In 46708-0506-06, the first segment (46708) is the labeler code FDA assigned to Alembic Pharmaceuticals Limited; the middle segment (0506) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (06) identifies this exact package size and type. Together they name one specific package of one specific product.
Is this package still being marketed?
Yes, per the latest FDA NDC Directory data on this page: this package is listed as actively marketed, with no marketing end date reported by Alembic Pharmaceuticals Limited. Listing status can change — the directory data on this page refreshes weekly.
Who lists this product with the FDA?
Alembic Pharmaceuticals Limited is the labeler of record for this NDC — the company under whose FDA-assigned code the package is listed. The labeler may be the manufacturer itself or a distributor marketing the product under its own code.
Do I need a prescription for this product?
This NDC is listed with FDA as a prescription product, so it is dispensed under a prescriber's order. Your pharmacist can tell you whether any over-the-counter forms of the same medication exist.
This page identifies an FDA-listed package (the NDC) and reports public regulatory and pricing data about the listing. It is reference information, not a medical recommendation — talk to your pharmacist or prescriber about your own medication.
Where does this data come from?
Listing facts (marketing category, packager status, marketing dates) from the FDA openFDA NDC Directory; label availability from DailyMed; pricing coverage from CMS NADAC; equivalence scope from the FDA Orange Book.

📄 Full prescribing information FDA SPL

The complete FDA label for this product — the official prescribing information, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
🎯 Indications and Usage 22 words

INDICATIONS & USAGE Azelastine hydrochloride ophthalmic solution 0.05% is indicated for the treatment of itching of the eye associated with allergic conjunctivitis.

⏱️ Dosage and Administration 17 words

DOSAGE & ADMINISTRATION The recommended dose is one drop instilled into each affected eye twice a day.

Contraindications 20 words

CONTRAINDICATIONS Azelastine hydrochloride ophthalmic solution 0.05% is contraindicated in persons with known or suspected hypersensitivity to any of its components.

⚠️ Warnings 18 words

WARNINGS Azelastine hydrochloride ophthalmic solution 0.05% is for ocular use only and not for injection or oral use.

🤒 Adverse Reactions 78 words

ADVERSE REACTIONS In controlled multiple-dose studies where patients were treated for up to 56 days, the most frequently reported adverse reactions were transient eye burning/stinging (approximately 30%), headaches (approximately 15%) and bitter taste (approximately 10%). The occurrence of these events was generally mild. The following events were reported in 1–10% of patients: asthma, conjunctivitis, dyspnea, eye pain, fatigue, influenza-like symptoms, pharyngitis, pruritus, rhinitis and temporary blurring.

Some of these events were similar to the underlying disease being studied.

🤰 Pregnancy 137 words

PREGNANCY Teratogenic Effects: Pregnancy Category C. Azelastine hydrochloride has been shown to be embryotoxic, fetotoxic, and teratogenic (external and skeletal abnormalities) in mice at an oral dose of 68.6 mg/kg/day (57,000 times the recommended ocular human use level). At an oral dose of 30 mg/kg/day (25,000 times the recommended ocular human use level), delayed ossification (undeveloped metacarpus) and the incidence of 14th rib were increased in rats.

At 68.6 mg/kg/day (57,000 times the maximum recommended ocular human use level) azelastine hydrochloride caused resorption and fetotoxic effects in rats. The relevance to humans of these skeletal findings noted at only high drug exposure levels is unknown. There are no adequate and well-controlled studies in pregnant women.

Azelastine hydrochloride ophthalmic solution 0.05% should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

🧒 Pediatric Use 17 words

PEDIATRIC USE Safety and effectiveness in pediatric patients below the age of 3 have not been established.

🧓 Geriatric Use 18 words

GERIATRIC USE No overall differences in safety or effectiveness have been observed between elderly and younger adult patients.

🧬 Clinical Pharmacology ~1 min read

CLINICAL PHARMACOLOGY Azelastine Hydrochloride is a relatively selective histamine H 1 antagonist and an inhibitor of the release of histamine and other mediators from cells (e.g. mast cells) involved in the allergic response. Based on in-vitro studies using human cell lines, inhibition of other mediators involved in allergic reactions (e.g. leukotrienes and PAF) has been demonstrated with azelastine hydrochloride. Decreased chemotaxis and activation of eosinophils has also been demonstrated.

Pharmacokinetics and Metabolism: Absorption of azelastine following ocular administration was relatively low. A study in symptomatic patients receiving one drop of azelastine hydrochloride ophthalmic solution 0.05% in each eye two to four times a day (0.06 to 0.12 mg azelastine hydrochloride) demonstrated plasma concentrations of azelastine hydrochloride to generally be between 0.02 and 0.25 ng/mL after 56 days of treatment. Three of nineteen patients had quantifiable amounts of N-desmethylazelastine that ranged from 0.25–0.87 ng/mL at Day 56.

Based on intravenous and oral administration, the elimination half-life, steady-state volume of distribution and plasma clearance were 22 hours,

14.5 L/kg and

0.5L/h/kg, respectively. Approximately 75% of an oral dose of radiolabeled azelastine hydrochloride was excreted in the feces with less than 10% as unchanged azelastine. Azelastine hydrochloride is oxidatively metabolized to the principal metabolite, N-desmethylazelastine, by the cytochrome P450 enzyme system.

In-vitro studies in human plasma indicate that the plasma protein binding of azelastine and N-desmethylazelastine are approximately 88% and 97%, respectively. Clinical Trials: In a conjunctival antigen challenge study, azelastine hydrochloride ophthalmic solution 0.05% was more effective than its vehicle in preventing itching associated with allergic conjunctivitis. Azelastine hydrochloride ophthalmic solution 0.05% had a rapid (within 3 minutes) onset of effect and a duration of effect of approximately 8 hours for the prevention of itching.

In environmental studies, adult and pediatric patients with seasonal allergic conjunctivitis were treated with azelastine hydrochloride ophthalmic solution 0.05% for two to eight weeks. In these studies, azelastine hydrochloride ophthalmic solution 0.05% was more effective than its vehicle in relieving itching associated with allergic conjunctivitis.

📦 How Supplied / Storage and Handling 69 words

HOW SUPPLIED Azelastine hydrochloride ophthalmic solution, USP 0.05% is supplied as follows: Azelastine hydrochloride ophthalmic solution, USP 0.05% 6 mL (NDC#46708-506-06) solution in a 10 mL LDPE container with LDPE nozzle and a white HDPE screw cap. Storage Azelastine hydrochloride ophthalmic solution, USP 0.05% : Store UPRIGHT between 2° and 25°C (36° and 77°F). Rx only Manufactured by: Alembic Pharmaceuticals Limited Karakhadi - 391 450, Gujarat, India.

Revised: 01/2024

📋 Description 157 words

DESCRIPTION Azelastine hydrochloride ophthalmic solution, USP 0.05% is a sterile ophthalmic solution containing azelastine hydrochloride, a relatively selective H 1 -receptor antagonist for topical administration to the eyes. Azelastine hydrochloride is a white crystalline powder with a molecular weight of 418.37. Azelastine hydrochloride is sparingly soluble in water, methanol and propylene glycol, and slightly soluble in ethanol, octanol, and glycerine.

Azelastine hydrochloride is a racemic mixture with a melting point of 225°C. The chemical name for azelastine hydrochloride is (±)-1-(2H)-phthalazinone,4-[(4-chlorophenyl)methyl]-2-(hexahydro-1-methyl-1H-azepin-4-yl)-, monohydrochloride and is represented by the following chemical structure: Structural formula: C 22 H 24 ClN 3 O•HCl Each mL of azelastine hydrochloride ophthalmic solution, USP 0.05% contains: Active: 0.5 mg azelastine hydrochloride, equivalent to 0.457 mg of azelastine base; Preservative: 0.125 mg benzalkonium chloride; Inactives: disodium edetate dihydrate, hypromellose, sorbitol solution, sodium hydroxide and water for injection.

It has a pH of approximately 5.0 to 6.5 and an osmolarity of approximately 271 to 312 mOsmol/L. azelastine-hydrochloride-str

💬 Information for Patients 137 words

INFORMATION FOR PATIENTS To prevent contaminating the dropper tip and solution, care should be taken not to touch any surface, the eyelids, or surrounding areas with the dropper tip of the bottle or single-use container. Keep bottle tightly closed when not in use. Discard single-use container immediately after use.

This product is sterile when packaged. Patients should be advised not to wear a contact lens if their eye is red. Azelastine hydrochloride ophthalmic solution 0.05% should not be used to treat contact lens related irritation.

The preservative in azelastine hydrochloride ophthalmic solution 0.05%, benzalkonium chloride, may be absorbed by soft contact lenses. Patients who wear soft contact lenses and whose eyes are not red , should be instructed to wait at least ten minutes after instilling azelastine hydrochloride ophthalmic solution 0.05% before they insert their contact lenses.

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗
For educational and professional reference only — not medical advice. Pricing reflects published NADAC and CMS ASP (free public data) and may differ from your acquisition cost; always verify before billing or dispensing.