Informational only — Not medical advice. Always consult a licensed healthcare provider.

Community data Updated 23 hours ago

Indications

Antazoline + Tetryzoline eye preparation is used for temporary relief of the signs and symptoms of allergic conjunctivitis. These include conjunctival hyperaemia, chemosis and itching. It can be used in adults and in children above 2 years of age.

⚠️ Always consult a registered physician before taking any medicine.

Pharmacology

Antazoline is an antihistamine from the ethylenediamine class, and it works as a selective HI antagonist. HI receptors are responsible for several effects, including contraction of smooth muscle and widening of the capillaries, which also become more permeable. Tetryzoline is a sympathomimetic with alpha-adrenergic activity. It narrows the blood vessels, and this reduces redness and edema in allergic conjunctivitis.

Antihistamines block the HI histamine receptor. They are highly effective at relieving itching, but they are not very active against the redness that comes with it. For this reason, products that combine an antihistamine with a vasoconstrictor are well established for the symptomatic relief of allergic eye disease.

Pregnancy & Breastfeeding

No clinical data are available on pregnancies exposed to Antazoline + Tetryzoline. So the eye drops should only be used if the likely benefit is greater than the risk to the fetus or infant. It isn't known whether either of the active substances passes into breast milk. Take care when using the product while breast-feeding.

⚠️ Talk to your doctor before taking any medicine during pregnancy or while breastfeeding.

Dosage Reference

⚠️ Reference ranges from official sources only. Consult your doctor for personalized dosing.

Adults: Adults and adolescents can use 1 drop of Antazoline + Tetryzoline 2 to 3 times daily, for up to 14 days. For children older than 2 years, no specific studies are available in this age group. Because of possible systemic effects, the dose should not go beyond 1 to 2 drops per day. Children below 2 years of age should not use this medicine. Don't use the eye drop for longer than 14 days, as this may cause rebound hyperemia and toxic follicular conjunctivitis.

Side Effects & Interactions

Side Effects

No side-effect data recorded yet.

Key Interactions

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