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(olopatadine hydrochloride) Ophthalmic Solution 0.1%
PATANOL® (olopatadine hydrochloride ophthalmic solution) 0.1 % is a sterile ophthalmic solution containing olopatadine, a relatively selective H1-receptor antagonist and inhibitor of histamine release from the mast cell for topical administration to the eyes. Olopatadine hydrochloride is a white, crystalline, water-soluble powder with a molecular weight of 373.88. The chemical structure is presented below:
Chemical Name: 11-[(Z)-3-(Dimethylamino)propylidene]-6-11-dihydrodibenz[b,e] oxepin-2-acetic acid hydrochloride
Each mL of PATANOL contains: Active: 1.11 mg olopatadine hydrochloride equivalent to 1 mg olopatadine.
Preservative: benzalkonium chloride 0.01 %. Inactives: dibasic sodium phosphate; sodium chloride; hydrochloric acid/sodium hydroxide (adjust pH); and purified water. It has a pH of approximately 7 and an osmolality of approximately 300 mOsm/kg.
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;
What are the precautions when taking olopatadine (Patanol)?
Before using olopatadine hydrochloride, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients (such as preservatives like benzalkonium chloride), which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: contact lens use.
Your vision may be temporarily blurred or unstable after applying this drug. Do not drive, use machinery, or do any activity that requires clear vision until you are sure you can perform such activities safely.
This medication should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your...
Last reviewed on RxList: 3/17/2008
This monograph has been modified to include the generic and brand name in many instances.
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