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Pataday

Last reviewed on RxList: 11/7/2017
Drug Description

PATADAY™
(olopatadine hydrochlorideophthalmic) Solution

DESCRIPTION

PATADAY™ (olopatadine hydrochloride ophthalmic solution) 0.2% is a sterile ophthalmic solution containing olopatadine for topical administration to the eyes. Olopatadine hydrochloride is a white, crystalline, water-soluble powder with a molecular weight of 373.88 and a molecular formula of C21H23NO3 • HCl.

The chemical structure is presented below:

PATADAY (olopatadine hydrochloride ophthalmic solution) &™ (olopatadine hydrochloride) Structural Formula Illustration

Chemical Name: 11-[(Z)-3(Dimethylamino) propylidene]-6-11dihydrodibenz[b,e] oxepin-2-acetic acid, hydrochloride

Each mL of PATADAY™ (olopatadine hydrochloride ophthalmic solution) solution contains: Active: 2.22 mg olopatadine hydrochloride equivalent to 2 mg olopatadine. Inactives: povidone; dibasic sodium phosphate; sodium chloride; edentate disodium; benzalkonium chloride 0.01% (preservative); hydrochloric acid/sodium hydroxide (adjust pH); and purified water.

It has a pH of approximately 7and an osmolality of approximately 300 mOsm/kg.

For Consumers

What are the possible side effects of olopatadine ophthalmic (Pataday, Patanol)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using olopatadine ophthalmic and call your doctor at once if you have severe redness, swelling, burning, stinging, drainage, crusting, or other irritation when using the eye drops.

Less serious side effects may include:

  • mild burning, stinging, irritation, itching, redness, or dryness of the eyes;
  • blurred vision;
  • feeling that something is in your eye;
  • puffy...
Indications & Dosage

INDICATIONS

PATADAY™ (olopatadine hydrochloride ophthalmic solution) solution is indicated for the treatment of ocular itching associated with allergic conjunctivitis.

DOSAGE AND ADMINISTRATION

The recommended dose is one drop in each affected eye once a day.

HOW SUPPLIED

Dosage Forms And Strengths

Ophthalmic solution 0.2%: each ml contains 2.22 mg of olopatadine hydrochloride.

Storage And Handling

PATADAY™ (olopatadine hydrochloride ophthalmic solution) 0.2% is supplied in a white, oval, low density polyethylene DROP-TAINER® dispenser with a natural low density polyethylene dispensing plug and a white polypropylene cap. Tamper evidence is provided with a shrink band around the closure and neck area of the package.

2.5 mL fill in 4 mL bottle (NDC 0065-027225)

Storage

Store at 2°C to 25°C (36°F to 77°F)

Manufacturer details: n/a. Revised: 8/2010

Side Effects & Drug Interactions

SIDE EFFECTS

Symptoms similar to cold syndrome and pharyngitis were reported at an incidence of approximately 10%.

The following adverse experiences have been reported in 5% or less of patients:

Ocular: blurred vision, burning or stinging, conjunctivitis, dry eye, foreign body sensation, hyperemia, hypersensitivity, keratitis, lid edema, pain and ocular pruritus.

Non-ocular: asthenia, back pain, flu syndrome, headache, increased cough, infection, nausea, rhinitis, sinusitis and taste perversion.

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

DRUG INTERACTIONS

No information provided.

Warnings & Precautions

WARNINGS

Included as part of the PRECAUTIONS section.

PRECAUTIONS

For topical ocular use only. Not for injection or oral use.

Contamination of Tip and Solution As with any eye drop, to prevent contaminating the dropper tip and solution, care should be taken not to touch the eyelids or surrounding areas with the dropper tip of the bottle. Keep bottle tightly closed when not in use.

Contact Lens Use Patients should be advised not to wear a contact lens if their eye is red.

PATADAY™ (olopatadine hydrochloride ophthalmic solution) 0.2% should not be used to treat contact lens related irritation.

The preservative in PATADAY™ (olopatadine hydrochloride ophthalmic solution) solution, 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 PATADAY™ olopatadine hydrochloride ophthalmic solution) 0.2% before they insert their contact lenses.

Nonclinical Toxicology

Carcinogenesis, Mutagenesis, Impairment of Fertility

Olopatadine administered orally was not carcinogenic in mice and rats in doses up to 500 mg/kg/day and 200 mg/kg/day, respectively. Based on a 40 μL drop size and a 50 kg person, these doses were approximately 150,000 and 50,000 times higher than the maximum recommended ocular human dose (MROHD). No mutagenic potential was observed when olopatadine was tested in an in vitro bacterial reverse mutation (Ames) test, an in vitro mammalian chromosome aberration assay or an in vivo mouse micronucleus test. Olopatadine administered to male and female rats at oral doses of approximately 100,000 times MROHD level resulted in a slight decrease in the fertility index and reduced implantation rate; no effects on reproductive function were observed at doses of approximately 15,000 times the MROHD level.

Use In Specific Populations

Pregnancy

Teratogenic effects: Pregnancy Category C

Olopatadine was found not to be teratogenic in rats and rabbits. However, rats treated at 600 mg/kg/day, or 150,000 times the MROHD and rabbits treated at 400 mg/kg/day, or approximately 100,000 times the MROHD, during organogenesis showed a decrease in live fetuses. In addition, rats treated with 600 mg/kg/day of olopatadine during organogenesis showed a decrease in fetal weight. Further, rats treated with 600 mg/kg/day of olopatadine during late gestation through the lactation period showed a decrease in neonatal survival and body weight. There are, however, no adequate and well- controlled studies in pregnant women. Because animal studies are not always predictive of human responses, this drug should be used in pregnant women only if the potential benefit to the mother justifies the potential risk to the embryo or fetus.

Nursing Mothers

Olopatadine has been identified in the milk of nursing rats following oral administration. It is not known whether topical ocular administration could result in sufficient systemic absorption to produce detectable quantities in the human breast milk. Nevertheless, caution should be exercised when PATADAY™ olopatadine hydrochloride ophthalmic solution) 0.2% is administered to a nursing mother.

Pediatric Use

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

Geriatric Use

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

Overdosage & Contraindications
Clinical Pharmacology

CLINICAL PHARMACOLOGY

Mechanism of Action

Olopatadine is a mast cellstabilizer and a histamine H1 antagonist. Decreased chemotaxis and inhibition of eosinophil activation has also been demonstrated.

Pharmacokinetics

Systemic bioavailability data upon topical ocular administration of PATADAY™ (olopatadine hydrochloride ophthalmic solution) solution are not available. Following topical ocular administration of olopatadine 0.15% ophthalmic solution in man, olopatadine was shown to have a low systemic exposure. Two studies in normal volunteers (totaling 24 subjects) dosed bilaterally with olopatadine 0.15% ophthalmic solution once every 12 hours for 2 weeks demonstrated plasma concentrations to be generally below the quantitation limit of the assay ( < 0.5 ng/mL). Samples in which olopatadine was quantifiable were typically found within 2 hours of dosing and ranged from 0.5 to 1.3 ng/mL. The elimination half-life in plasma following oral dosing was 8 to 12 hours, and elimination was predominantly through renal excretion. Approximately 60 - 70% of the dose was recovered in the urine as parent drug. Two metabolites, the mono-desmethyl and the N-oxide, were detected at low concentrations in the urine.

Clinical Studies

Results from clinical studies of up to 12 weeks duration demonstrate that PATADAY™ (olopatadine hydrochloride ophthalmic solution) solution when dosed once a day is effective in the treatment of ocular itching associated with allergic conjunctivitis.

Medication Guide

PATIENT INFORMATION

Topical Ophthalmic Use Only

For topical ophthalmic administration only.

Sterility of Dropper Tip Patients should be advised to not touch dropper tip to any surface, as this may contaminate the contents.

Concomitant Use of Contact Lenses

Patients should be advised not to wear a contact lens if their eyes are red. Patients should be advised that PATADAY™ (olopatadine hydrochloride ophthalmic solution) solution should not be use to treat contact lens-related irritation. Patients should also be advised to remove contact lenses prior to instillation of PATADAY™ (olopatadine hydrochloride ophthalmic solution) solution. The preservative in PATADAY™ (olopatadine hydrochloride ophthalmic solution) solution benzalkonium chloride may be absorbed by soft contact lenses. Lenses may be reinserted following administration of PATADAY™ (olopatadine hydrochloride ophthalmic solution) solution.

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Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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