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Drugs reference index «Olopatadine hydrochloride»

Olopatadine hydrochloride

Brand names: Patanol

Why is Olopatadine hydrochloride prescribed?

Patanol is an antihistamine that relieves the red, itchy eyes often caused by allergies.

Most important fact about Olopatadine hydrochloride

Patanol should be used only for allergic conditions. It is not a remedy for irritation from contact lenses.

How should you take Olopatadine hydrochloride?

When applying the eyedrops, be careful to avoid touching the eyelids with the dropper tip. This could contaminate the solution.

Do not wear soft contact lenses while the eyes are red. At other times, wait at least ten minutes after applying Patanol before inserting the lenses.

  • If you miss a dose...Take the forgotten dose as soon as you remember. However, if it is almost time for your next dose, skip the one you missed and return to your regular schedule. Do not take two doses at once.
  • Storage instructions...Keep bottle tightly closed. Store at room temperature.

What side effects may occur?

Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe to continue using Patanol.

  • Side effects may includes:Allergic reactions, bloodshot eyes, blurred vision, burning or stinging, changes in taste, cold-like symptoms, dry eye, headache (occurs in 7 percent of patients)inflammation of the cornea, itching, nausea, runny nose, sensation of a foreign body in the eye, sinus inflammation, sore throat, swollen lids, weakness

Why should Olopatadine hydrochloride not be prescribed?

You'll need to avoid Olopatadine hydrochloride if it causes an allergic reaction.

Special warnings about Olopatadine hydrochloride

Use only in the eyes. Patanol should not be taken orally or by injection. Safety and effectiveness have not been established in children under 3.

Possible food and drug interactions when taking Olopatadine hydrochloride

There is no information on potential interactions.

Special information if you are pregnant or breastfeeding

The effects of Patanol during pregnancy have not been adequately studied. If you are pregnant or plan to become pregnant, alert your doctor immediately.

Researchers do not know how much of the eyedrops can make their way into breast milk. Be cautious if using Patanol while nursing.

Recommended dosage for Olopatadine hydrochloride

The usual dose is 1 drop in each affected eye 2 times a day. Allow 6 to 8 hours between doses.


There is no information on Patanol overdose. However, excessive use of any medication can have serious consequences. If you suspect an overdose, seek medical attention without delay.