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Questions & Answers

Side Effects & Adverse Reactions

There is currently no warning information available for this product. We apologize for any inconvenience.

Legal Issues

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FDA Safety Alerts

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Manufacturer Warnings

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FDA Labeling Changes

There are currently no FDA labeling changes available for this drug.


1.1 Seasonal Allergic Rhinitis

PATANASE Nasal Spray is an H1 receptor antagonist indicated for the relief of the symptoms of seasonal allergic rhinitis in adults and children 6 years of age and older.


There is currently no drug history available for this drug.

Other Information

PATANASE (olopatadine hydrochloride) Nasal Spray, 665 micrograms (mcg) is a metered-spray solution for intranasal administration. Olopatadine hydrochloride, the active component of PATANASE Nasal Spray, is a white, water-soluble crystalline powder. The chemical name for olopatadine hydrochloride is (Z)-11-[3-(dimethylamino)propylidene]-6,11-dihydrodibenz[b,e]oxepin-2-acetic acid hydrochloride. It has a molecular weight of 373.88, and its molecular formula is C21H23NO3 • HCl with the following chemical structure:


PATANASE Nasal Spray contains 0.6% w/v olopatadine (base) in a nonsterile aqueous solution with pH of approximately 3.7. After initial priming (5 sprays), each metered spray from the nasal applicator delivers 100 microliters of the aqueous solution containing 665 mcg of olopatadine hydrochloride, which is equivalent to 600 mcg of olopatadine (base) [see Dosage and Administration]. PATANASE Nasal Spray also contains benzalkonium chloride (0.01%), dibasic sodium phosphate, edetate disodium, sodium chloride, hydrochloric acid and/or sodium hydroxide (to adjust pH), and purified water.

Patanase Manufacturers

  • Physicians Total Care, Inc.
    Patanase (Olopatadine Hydrochloride) Spray, Metered [Physicians Total Care, Inc.]
  • Alcon Laboratories, Inc.
    Patanase (Olopatadine Hydrochloride) Spray, Metered [Alcon Laboratories, Inc.]
  • Clinical Solutions Wholesale
    Patanase (Olopatadine Hydrochloride) Spray, Metered [Clinical Solutions Wholesale]

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