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Pataday, Patanol (olopatadine ophthalmic) dosing, indications …

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  • Generic Name: olopatadine hydrochloride ophthalmic solution
  • Brand Name: Pataday
Last reviewed on RxList: 11/7/2017

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Drug Description

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(olopatadine hydrochlorideophthalmic) Solution


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.

Indications & Dosage


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


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


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)


Store at 2°C to 25°C (36°F to 77°F)

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

Side Effects & Drug Interactions


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.


No information provided.

Warnings & Precautions


Included as part of the PRECAUTIONS section.


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


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

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


No information provided.



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.


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


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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