Olopatadine (olopatadine hydrochloride)

Olopatadine is an antihistamine.

Pronunciation: oh-loe-pa-TA-deen

What are olopatadine’s uses?

Olopatadine eye drops help treat the symptoms of allergic conjunctivitis by reducing the body's response to the allergy. This eases symptoms such as itchy, watery eyes.

What dosage should you take?

For eyes, one eye drop into the conjunctival sac (bottom part of the eyelid) of the affected eye twice daily. For children over three years, the dosage is the same as the adult dosage.

However, first check the correct dosages with your Clicks pharmacist.

What special precautions should you take?

  • Avoid using olopatadine to treat irritation from contact lenses.
  • Don't use olopatadine drops for future eye problems without first checking with your doctor.
  • You must not drive or operate heavy machinery if you experience blurred vision after using olapatadine. Wait for your vision to return to normal.
  • Use for four months at most — it is not suitable for long term use.

Olopatadine should be used with caution in the following cases:

  • During pregnancy, if you’re planning to become pregnant or are breastfeeding, so discuss its use with your doctor.
  • You have any allergies to any ingredient in olopatadine.
  • Have dry eyes.
  • Have other eye or eyesight problems.

What drug interactions could you experience?

As a rule, always inform your doctor or Clicks pharmacist what prescription and non-prescription medications, vitamins, nutritional supplements and herbal products you are taking or planning to take to ensure you don’t suffer the effects of adverse drug interactions.

What are olopatadine’s side effects?

Mild side effects could include:

  • Blurred vision
  • Burning
  • Stinging
  • Change in taste
  • Dryness of the eye
  • Eye pain
  • Eye irritation
  • Head congestion
  • Headache
  • Itching
  • Redness in the eye
  • Runny nose
  • Sore throat
  • Tearing

Severe side effects could include:

  • Severe allergic reactions such as rash, hives, itching, difficulty breathing and tightness in the chest.

This is not a complete list of side effects. It’s essential that you call your doctor should you notice any severe or odd side effects.

What are the overdose symptoms?

A small olopatadine overdose is no cause for concern. In case of intentional large overdose, call a doctor or the ambulance immediately.

The accuracy of this information was checked and approved by Clicks' pharmacist Waheed Abdurahman in August 2015