NDC 0023-9201 Elestat

Epinastine Hydrochloride

NDC Product Code 0023-9201

NDC Product Information

Elestat with NDC 0023-9201 is a a human prescription drug product labeled by Allergan, Inc.. The generic name of Elestat is epinastine hydrochloride. The product's dosage form is solution/ drops and is administered via ophthalmic form.

Labeler Name: Allergan, Inc.

Dosage Form: Solution/ Drops - A solution which is usually administered in a drop-wise fashion.

Product Type: Human Prescription Drug What kind of product is this?
Indicates the type of product, such as Human Prescription Drug or Human Over the Counter Drug. This data element matches the “Document Type” field of the Structured Product Listing.

Elestat Active Ingredient(s)

What is the Active Ingredient(s) List?
This is the active ingredient list. Each ingredient name is the preferred term of the UNII code submitted.

  • EPINASTINE HYDROCHLORIDE .5 mg/mL

Inactive Ingredient(s)

About the Inactive Ingredient(s)
The inactive ingredients are all the component of a medicinal product OTHER than the active ingredient(s). The acronym "UNII" stands for “Unique Ingredient Identifier” and is used to identify each inactive ingredient present in a product.

  • BENZALKONIUM CHLORIDE (UNII: F5UM2KM3W7)
  • EDETATE DISODIUM (UNII: 7FLD91C86K)
  • WATER (UNII: 059QF0KO0R)
  • SODIUM CHLORIDE (UNII: 451W47IQ8X)
  • SODIUM PHOSPHATE, MONOBASIC (UNII: 3980JIH2SW)
  • SODIUM HYDROXIDE (UNII: 55X04QC32I)
  • HYDROCHLORIC ACID (UNII: QTT17582CB)

Administration Route(s)

What are the Administration Route(s)?
The translation of the route code submitted by the firm, indicating route of administration.

  • Ophthalmic - Administration to the external eye.

Pharmacological Class(es)

What is a Pharmacological Class?
These are the reported pharmacological class categories corresponding to the SubstanceNames listed above.

  • Adrenergic Agonists - [MoA] (Mechanism of Action)
  • Adrenergic Receptor Agonist - [EPC] (Established Pharmacologic Class)
  • Decreased Histamine Release - [PE] (Physiologic Effect)
  • Histamine H1 Receptor Antagonists - [MoA] (Mechanism of Action)
  • Histamine-1 Receptor Inhibitor - [EPC] (Established Pharmacologic Class)

Product Labeler Information

What is the Labeler Name?
Name of Company corresponding to the labeler code segment of the Product NDC.

Labeler Name: Allergan, Inc.
Labeler Code: 0023
FDA Application Number: NDA021565 What is the FDA Application Number?
This corresponds to the NDA, ANDA, or BLA number reported by the labeler for products which have the corresponding Marketing Category designated. If the designated Marketing Category is OTC Monograph Final or OTC Monograph Not Final, then the Application number will be the CFR citation corresponding to the appropriate Monograph (e.g. “part 341”). For unapproved drugs, this field will be null.

Marketing Category: NDA - A product marketed under an approved New Drug Application. What is the Marketing Category?
Product types are broken down into several potential Marketing Categories, such as NDA/ANDA/BLA, OTC Monograph, or Unapproved Drug. One and only one Marketing Category may be chosen for a product, not all marketing categories are available to all product types. Currently, only final marketed product categories are included. The complete list of codes and translations can be found at www.fda.gov/edrls under Structured Product Labeling Resources.

Start Marketing Date: 01-19-2004 What is the Start Marketing Date?
This is the date that the labeler indicates was the start of its marketing of the drug product.

Listing Expiration Date: 12-31-2020 What is the Listing Expiration Date?
This is the date when the listing record will expire if not updated or certified by the product labeler.

Exclude Flag: N What is the NDC Exclude Flag?
This field indicates whether the product has been removed/excluded from the NDC Directory for failure to respond to FDA’s requests for correction to deficient or non-compliant submissions. Values = ‘Y’ or ‘N’.

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Information for Patients

Epinastine Ophthalmic

Epinastine Ophthalmic is pronounced as (ep i nas' tine)

Why is epinastine ophthalmic medication prescribed?
Ophthalmic epinastine is used to prevent itching of the eyes caused by allergic conjunctivitis (a condition in which the eyes become itchy, swollen, red, and teary when t...
[Read More]

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Elestat Product Labeling Information

The product labeling information includes all published material associated to a drug. Product labeling documents include information like generic names, active ingredients, ingredient strength dosage, routes of administration, appearance, usage, warnings, inactive ingredients, etc.

Product Labeling Index

1 Indications And Usage

ELESTAT® ophthalmic solution is indicated for the prevention of itching associated with allergic conjunctivitis.

2 Dosage And Administration

The recommended dosage is one drop in each eye twice a day.
Treatment should be continued throughout the period of exposure (i.e., until the pollen season is over or until exposure to the offending allergen is terminated), even when symptoms are absent.

3 Dosage Forms And Strengths

Solution containing 0.5 mg/mL epinastine HCl

4 Contraindications

None

5.1 Contamination Of Tip And Solution

Patients should be instructed to avoid allowing the tip of the dispensing container to contact the eye, surrounding structures, fingers, or any other surface in order to avoid contamination of the solution by common bacteria known to cause ocular infections. Serious damage to the eye and subsequent loss of vision may result from using contaminated solutions.
Bottle should be kept tightly closed when not in use.

5.2 Use With Contact Lenses

Patients should be advised not to wear a contact lens if their eye is red. ELESTAT® ophthalmic solution should not be used to treat contact lens-related irritation.
The preservative in ELESTAT®, benzalkonium chloride, may be absorbed by soft contact lenses. Contact lenses should be removed prior to instillation of ELESTAT® ophthalmic solution and may be reinserted after 10 minutes following its administration.

5.3 Topical Ophthalmic Use Only

ELESTAT® is for topical ophthalmic use only and not for injection or oral use.

6.1 Clinical Studies Experience

Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical studies of another drug and may not reflect the rates observed in practice.
The most frequently reported ocular adverse reactions occurring in approximately 1-10% of patients were burning sensation in the eye, folliculosis, hyperemia, and pruritus.
The most frequently reported non-ocular adverse reactions were infection (cold symptoms and upper respiratory infections), seen in approximately 10% of patients, and headache, rhinitis, sinusitis, increased cough, and pharyngitis, seen in approximately 1 - 3% of patients.
Some of these reactions were similar to the underlying disease being studied.

6.2 Postmarketing Experience

The following reactions have been identified during postmarketing use of ELESTAT® in clinical practice. Because they are reported voluntarily from a population of unknown size, estimates of frequency cannot be made. The reactions, which have been chosen for inclusion due to either their seriousness, frequency of reporting, possible causal connection to ELESTAT®, or a combination of these factors, include: lacrimation increased.

Teratogenic Effects

Teratogenic EffectsPregnancy Category C
In an embryofetal developmental study in pregnant rats, maternal toxicity with no embryofetal effects was observed at an oral dose that was approximately 150,000 times the maximum recommended ocular human dose (MROHD) of 0.0014 mg/kg/day on a mg/kg basis. Total resorptions and abortion were observed in an embryofetal study in pregnant rabbits at an oral dose that was approximately 55,000 times the MROHD. In both studies, no drug-induced teratogenic effects were noted.
Epinastine reduced pup body weight gain following an oral dose to pregnant rats that was approximately 90,000 times the MROHD.
There are, however, no adequate and well-controlled studies in pregnant women. Because animal reproduction studies are not always predictive of human response, ELESTAT® ophthalmic solution should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.

8.3 Nursing Mothers

A study in lactating rats revealed excretion of epinastine in the breast milk. It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when ELESTAT® ophthalmic solution is administered to a nursing woman.

8.4 Pediatric Use

Safety and effectiveness in pediatric patients below the age of 2 years have not been established.

8.5 Geriatric Use

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

11 Description

ELESTAT® (epinastine HCl ophthalmic solution) 0.05% is a clear, colorless, sterile isotonic solution containing epinastine HCl, an antihistamine and an inhibitor of histamine release from the mast cell for topical administration to the eyes.
Epinastine HCl is represented by the following structural formula:
Chemical Name: 3-Amino-9,13b-dihydro-1H-dibenz[c,f]imidazo[1,5-a]azepine hydrochloride
Each mL contains: Active: Epinastine HCl 0.05% (0.5 mg/mL) equivalent to epinastine 0.044% (0.44 mg/mL); Preservative: Benzalkonium chloride 0.01%; Inactives: Edetate disodium; purified water; sodium chloride; sodium phosphate, monobasic; and sodium hydroxide and/or hydrochloric acid (to adjust pH). ELESTAT® has a pH of approximately 7 and an osmolality range of 250 to 310 mOsm/kg.

12.1 Mechanism Of Action

Epinastine is a topically active, direct H1-receptor antagonist and an inhibitor of the release of histamine from the mast cell. Epinastine is selective for the histamine H1-receptor and has affinity for the histamine H2-receptor. Epinastine also possesses affinity for the α1, α 2-, and 5-HT2–receptors.

12.3 Pharmacokinetics

Fourteen subjects, with allergic conjunctivitis, received one drop of ELESTAT® ophthalmic solution in each eye twice daily for 7 days. On day 7, average maximum epinastine plasma concentrations of 0.04±0.014 ng/ml were reached after about two hours indicating low systemic exposure. While these concentrations represented an increase over those seen following a single dose, the day 1 and day 7 Area Under the Curve (AUC) values were unchanged indicating that there is no increase in systemic absorption with multiple dosing. Epinastine is 64% bound to plasma proteins. The total systemic clearance is approximately 56 L/hr and the terminal plasma elimination half-life is about 12 hours. Epinastine is mainly excreted unchanged. About 55% of an intravenous dose is recovered unchanged in the urine with about 30% in feces. Less than 10% is metabolized. The renal elimination is mainly via active tubular secretion.

13.1 Carcinogenesis, Mutagenesis, Impairment Of Fertility

In 18-month or 2-year dietary carcinogenicity studies in mice or rats, respectively, epinastine was not carcinogenic at doses up to 40 mg/kg [approximately 30,000 times higher than the MROHD, assuming 100% absorption in humans and animals].
Epinastine in newly synthesized batches was negative for mutagenicity in the Ames/Salmonella assay and in vitro chromosome aberration assay using human lymphocytes. Positive results were seen with early batches of epinastine in two in vitro chromosomal aberration studies conducted in 1980s with human peripheral lymphocytes and with V79 cells, respectively. Epinastine was negative in the in vivo clastogenicity studies, including the mouse micronucleus assay and chromosome aberration assay in Chinese hamsters. Epinastine was also negative in the cell transformation assay using Syrian hamster embryo cells, V79/HGPRT mammalian cell point mutation assay, and in vivo/in vitro unscheduled DNA synthesis assay using rat primary hepatocytes.
Epinastine had no effect on fertility of male rats. Decreased fertility in female rats was observed at an oral dose up to approximately 90,000 times the MROHD.

14 Clinical Studies

Epinastine HCl 0.05% has been shown to be significantly superior to vehicle for improving ocular itching in patients with allergic conjunctivitis in clinical studies using two different models: (1) conjunctival antigen challenge (CAC) where patients were dosed and then received antigen instilled into the inferior conjunctival fornix; and (2) environmental field studies where patients were dosed and evaluated during allergy season in their natural habitat. Results demonstrated a rapid onset of action for epinastine HCl 0.05% within 3 to 5 minutes after conjunctival antigen challenge. Duration of effect was shown to be 8 hours, making a twice daily regimen suitable. This dosing regimen was shown to be safe and effective for up to 8 weeks, without evidence of tachyphylaxis.

16 How Supplied/Storage And Handling

ELESTAT® (epinastine HCl ophthalmic solution) 0.05% is supplied sterile in opaque white LDPE plastic bottles with dropper tips and white high impact polystyrene (HIPS) caps as follows:
5 mL in 10 mL bottle                  NDC 0023-9201-05

Storage And Handling

Storage: Store at 15º-25ºC (59º-77ºF). Keep bottle tightly closed and out of the reach of children.

17.1 Sterility Of Dropper Tip

Patients should be advised not to touch dropper tip to any surface, as this may contaminate the contents (see WARNINGS AND PRECAUTIONS, 5.1).

17.2 Concomitant Use Of Contact Lenses

Patients should be advised not to wear a contact lens if their eye is red. Patients should be advised that ELESTAT® should not be used to treat contact lens-related irritation. Patients should also be advised to remove contact lenses prior to instillation of ELESTAT®. The preservative in ELESTAT®, benzalkonium chloride, may be absorbed by soft contact lenses. Lenses may be reinserted after 10 minutes following administration of ELESTAT®.

17.3 Topical Ophthalmic Use Only

For topical ophthalmic administration only.
Rx only© 2012 Allergan, Inc.Irvine, CA 92612, U.S.A.Allergan corporate signature logo is a registered trademark of Allergan, Inc.ELESTAT is a registered trademark of Boehringer Ingelheim International GmbH and is licensed to Allergan, Inc. Made in the U.S.A.
72499US10

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