Olopatadine 5 Mg Australia

Last Updated on 06/26/2026 ✔ Medically Reviewed by Dr. Arjun Srivastav

What is Olopatadine 5 mg?

Olopatadine 5 mg is an anti-allergic medication that acts as both an antihistamine and a mast cell stabilizer.

Olopatadine eye drops are also available, but that is used for allergic symptoms in the eyes only and conjunctivitis.

However, this pill version can be given to curb other systemic allergic signs that occur throughout the body,y such as the eyes, skin, and so on.

Manufacturer

Olopatadine 5 mg is manufactured by Ajanta Pharma Ltd. a leading Indian pharmaceutical company known for developing high-quality and affordable medicines across multiple therapeutic areas.

Uses of Olopatadine 5 mg

Here are some of the uses of Olopatadine 5 mg pills-

Seasonal Allergic Rhinitis

Here, the patient suffers from allergic symptoms like a runny or blocked nose, itchy and watery eyes.

Most patients suffer from such symptoms in one specific season, such as the pollen season or winter.

Perennial Allergic Rhinitis

The symptoms remain the same, but patients suffering from perennial allergic rhinitis will have symptoms throughout the year.

Skin Allergies

Swellings and itching on the skin occur due to hives and eczema.

Eye Allergy Symptoms

Conjunctivitis, eye inflammation, redness, water dripping from the eyes, and itchy eyes are some of the symptoms.

Note: For eye-specific allergies, doctors often prescribe Olopatadine eye drops, while oral formulations may be considered when allergy symptoms affect multiple parts of the body.

How Does Olopatadine 5 mg Australia Work?

Mast cell stabilization

The action of Olopatadine targets the mast cells in your body and stops them from granulating or bursting and releasing chemicals like histamine that cause symptoms of allergies.

It essentially stabilizes the outer cell membrane of these mast cells.

Symptom blocker H1 antihistamine

Olopatadine works like an H1 receptor antagonist. It binds to these receptor sites on the nerves and blood vessels, blocking the way for histamine.

As the histamine does not bind to these sites, it is not able to exhibit signs of swelling, itching, or inflammation.

Benefits of Olopatadine 5 mg Tablet

Relief from symptoms

• Use of Olopatadine 5 mg helps the patient get rid of allergic symptoms.
• It can curb symptoms occurring in different sites of the body, such as the nose, that are blocked or get runny in the eyes, where it treats redness, inflammation, and itching, and on the skin too.

Dual action

• The reason why Olopatadine 5 mg is highly effective is that it does both the job of prevention and treatment at the same time.
• By blocking the H1 receptors, it controls signs of allergic symptoms, stops them from getting severe, and stabilizes the mast cells to reduce allergies.

Low sedation

• Olopatadine 5 mg is a second-generation antihistamine medicine. This means that it has fewer sedative effects on you.
• It is less likely to cause severe drowsiness, sleepiness, and fatigue in the patient, unlike first-generation antihistamine drugs.

👉 Long-lasting action: The action of the Olopatadine 5 mg tablet lasts very long for up to 12 to 15 hours with a single dose.

How to Take Olopatadine 5 mg

Method of use

1. The method of taking the medicine is to simply swallow it with water.
2. Breaking, crushing, or chewing the medicine is not allowed.

With or without food: Well, both options are possible, and you can take the medicine either before or after having your meals.

How Long Does Olopatadine 5 mg Last?

A single dose of Olopatadine 5 mg is enough to give action for the whole day or 24 hours. This means that you have to take only a single medicine the entire day.

• Onset of action: The medicine usually begins working within 1 to 2 hours after taking the tablet.
• Peak effect: Maximum symptom relief is generally achieved within a few hours of administration.

Olopatadine 5 mg Dosage

The dosage of Olopatadine 5 mg should always be taken according to your doctor’s prescription.

The recommended dose may vary depending on your age, medical condition, and the severity of your allergy symptoms.

Missed Dose

To maintain its effects in the bloodstream, this medicine should be taken as prescribed. Upon reminder, any missed dose can be used immediately. Don’t double-dose to catch up.

Over Dose

The overuse of this anti-allergy medicine may cause excessive dizziness, sleepiness, or dry mouth. If you suspect an overdose, contact your physician immediately.

Olopatadine 5 Mg vs Cetirizine Tablet: Which Dose is Right for You?

Choosing between Olopatadine 5 mg and Cetirizine is something that is best left to the doctors to decide. However, we will let you know a few basic details about both these medicines.

Remember that both Olopatadine 5 mg and Cetirizine belong to the group of second generation of antihistamine group of medicines. However, here is how they differ.

Which Medicine Should You Choose?

Mode of action

1. Olopatadine is a dual-action medicine that blocks histamine and stabilizes the mast cells to prevent and treat allergic symptoms.
2. Cetirizine only blocks histamine from binding to the receptors.

Dosage

1. For Olopatadine, doctors recommend the use of the 5 mg medicine two times per day.
2. However, for Cetirizine, the recommendation is a single time use per day only.

Best for

1. Doctors recommend Olopatadine for severe hives and multi-season flare-ups only.
2. Cetirizine, on the other hand,d is recommended for hay fever, severe hives, and rapid relief.

Availability

Olopatadine is a prescription-only medication,e whereas Cetirizine is available around the world as an OTC drug.

Drug Interactions with other medicines

With other antihistamine medicines: In such cases,  es you may have dry mouth, blurred vision, and an inability to start urine flow.

👉 Avoid using medicines like Cetirizine, Olopatadine, and Benadryl.

CNS depressants: Avoid taking Olopatadine with other medicines that slow down brain cell activity.

👉 Even though it will not cause direct interactions, you may feel drowsy, fatigued, and impaired coordination.

Medicines affecting kidney function: Using medicines that reduce kidney filtration rate can cause drug toxicity of Olopatadine in your body.

👉 The reason is that the kidneys are completely responsible for flushing OT the drug out of your body.

Safety Warnings and Precautions for Olopatadine 5 mg

Use in pregnant mothers: Use of Olopatadine 5 mg is safe for pregnant mothers, but the doctors may recommend some extra cautious tips to follow with your dose.

Elderly patients: Elderly patients who are more than 65 years in age may be recommended more caution measures to follow to avoid the chances of age-related complications.

Use of alcohol: Avoid taking alcohol as it can cause drowsiness or make you feel dizzier.

Avoid driving: Avoid driving or doing any other task like operating machinery or using sharp and heavy objects.

Those with BPH: Patients suffering from BPH can suffer more from signs of urine blockage. Consult with a doctor if you find it tough to start urine flow.

Who Should Avoid Olopatadine 5 Mg?

Those with kidney disorders: Patients who are suffering from severe renal disorders like kidney failure should completely avoid taking Olopatadine 5 mg.

👉 It is because the medicine is cleared out of your body by the kidneys, and since your filtration rate is low, it can cause drug toxicity.

Breastfeeding: Use of Olopatadine 5 mg is not safe for mothers who are breastfeeding their infants.

👉 It is because studies show that this drug can pass on to your baby from your breast milk.

Use in infants and children: Use of the Olopatadine 5 mg dose is not safe for small children, especially those below the age of 6 years.

Lifestyle Tips to Improve Results with Olopatadine 5 mg Tablet

Start using before the allergic season arrives: If your allergies are specific to any season, start taking the medicine a few days or weeks before the season actually starts. This will help your body to adapt better.

Staying indoors: Staying indoors during the pollen or winter season, or any other season, to which you are allergic, is the best way to avoid severe allergic symptoms.

Changing clothes and bathing: If you are allergic to pollen, remember that it can stick to your skin. A good idea in such cases is to change clothes immediately and wash them, and you should bathe if you get out.

Myths and Facts about Olopatadine 5 mg

Myths: Olopatadine is similar to allergic medicines like Claritin or Zyrtec:

• Facts: Olopatadine is a dual-action medicine, unlike the rest mentioned above, as it does the task of reducing allergic symptoms and preventing them further.

Myths: Take it only on the days when you show allergic symptoms:

• Facts: No, you should take Olopatadine 5 mg as a regular course for the stipulated time given by the doctors.

Storage Instructions

Store the sachet of Olopatadine 5 mg pills in normal room temperature (20°C–25°C) conditions only. Do not store in areas of high heat and humidity.

Where to Buy Olopatadine 5 Mg in Australia?

Olopatadine 5 mg is available for buying in Australia,lia but for this, you need a prescription mandatorily. Remember to visit a doctor and get this recommended first.

Then you can buy it from any medicine store in the country. For online buyers,  there are websites like Australiarxmeds selling the medicine online.