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Tetrahydrozoline is a decongestant used to relieve redness in the eyes caused by minor eye irritations (e.g., smog, swimming, dust, or smoke). It belongs to a class of drugs known as sympathomimetic amines.

How it works

It works by temporarily narrowing the blood vessels in the eye.

Common side effects

Nervousness, Blurred vision, Dilatation of the pupil of the eye, Eye redness, Eye irritation, Headache, Increased sweating, Tachycardia, Heart rate irregular, Burning sensation in eye, Teary eyes


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Content on this page was last updated on 28 September, 2016, by Dr. Varun Gupta (MD Pharmacology)