AZELASTINE HYDROCHLORIDE .5 mg/mL Solution/ Drops
🆔 Identity & classification
Where does this data come from?
🏭 Manufacturer & labeler
Where does this data come from?
🩺 Clinical
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 ↗Patient education
Supplement & herbal interactions
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🧪 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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0.125 mg / 1 mL
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 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.
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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.
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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.
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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.
6 inactive ingredients listed in the exact product block matched to this NDC.
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.Inactive ingredient FAQ
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💲 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 mL | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | $1.005 | $6.03 / 6 ml |
| Medicaid paysCMS SDUD · 12 mo | $2.48 | $14.87 / 6 ml |
| Medicare drug plans payPart D · Q2 2026 | $1.79 | $10.72 / 6 ml |
Where does this data come from?
🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Azelastine Hydrochloride .5 mg/mL 47335-0938-90 | Sun | 1 bottle | $0.908 | — | FDA listed | save 10% |
| Azelastine Hydrochloride .5 mg/mLthis 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/mL 46708-0506-06 | Alembic | 1 bottle | — | AT | FDA listed | — |
| Azelastine Hydrochloride .5 mg/mL 68083-0287-01 | Gland | 1 bottle | — | AT | FDA listed | — |
Where does this data come from?
⏳ 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?
🗺️ Medicaid utilization & spend
🔬 Reported adverse events (FAERS)
Top reported reactions
Age at onset
Reporter sex
Serious outcomes
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📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 60505-0578-04 You're viewing this | 1 BOTTLE, PLASTIC in 1 CARTON (60505-0578-4) / 6 mL in 1 BOTTLE, PLASTIC | 2009-12-01 | Active |
📄 Full prescribing information FDA SPL
🎯 Indications and Usage ▾
INDICATIONS AND USAGE Azelastine hydrochloride ophthalmic solution is indicated for the treatment of itching of the eye associated with allergic conjunctivitis.
⏱️ Dosage and Administration ▾
DOSAGE AND ADMINISTRATION The recommended dose is one drop instilled into each affected eye twice a day.
⛔ Contraindications ▾
CONTRAINDICATIONS Azelastine hydrochloride ophthalmic solution is contraindicated in persons with known or suspected hypersensitivity to any of its components.
⚠️ Warnings ▾
WARNINGS Azelastine hydrochloride ophthalmic solution is for topical ophthalmic use only and not for injection or oral use.
🤒 Adverse Reactions ▾
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 to 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.
🧬 Clinical Pharmacology ▾
CLINICAL PHARMACOLOGY Azelastine hydrochloride is a relatively selective histamine H1 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 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 was more effective than its vehicle in preventing itching associated with allergic conjunctivitis. Azelastine hydrochloride ophthalmic solution 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 for two to eight weeks. In these studies, azelastine hydrochloride ophthalmic solution was more effective than its vehicle in relieving itching associated with allergic conjunctivitis.
📦 How Supplied / Storage and Handling ▾
HOW SUPPLIED Azelastine Hydrochloride Ophthalmic Solution USP, 0.05% is supplied as follows: 6 mL (NDC# 60505-0578-4) solution in a translucent 11 mL HDPE container with a LDPE dropper tip, and a white HDPE screw cap. Storage Store UPRIGHT at 20ºC to 25ºC (68ºF to 77ºF) [See USP Controlled Room Temperature]. Azelastine Hydrochloride Ophthalmic Solution, USP 0.05% Manufactured by: Manufactured for: Apotex Inc.
Apotex Corp. Toronto, Ontario Weston, FL Canada M9L 1T9 33326 September 2025
📋 Description ▾
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: Each mL of azelastine hydrochloride ophthalmic solution 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, hydroxypropylmethylcellulose, sodium hydroxide, sorbitol solution and water for injection.
It has a pH of approximately 5.0 to 6.5 and an osmolality of approximately 265 to 375 mOsmol/kg.