Medicines
Discover all available medicines and treatments
Discover all available medicines and treatments
Brand: Visine, Clear Eyes, Murine Plus, Opti-Clear, GenTeal Tears Redness Relief
Tetrahydrozoline is a decongestant that shrinks blood vessels in the mucous membranes. It is commonly used to relieve redness, puffiness, and itching in the eyes due to minor irritations like allergies, colds, or swimming. It belongs to the imidazoline class of sympathomimetic agents.
For the temporary relief of minor eye redness, itching, and swelling.
Outcome:
Severe increase in blood pressure
Mechanism:
Additive sympathomimetic effects
Outcome:
Additive drying effects
Mechanism:
Both can dry out mucous membranes
Outcome:
Potential for increased drowsiness
Mechanism:
Additive CNS depressant effects
Most likely new formulation: extended-release eye drops (2026, 70% confidence).
Based on current usage trends and safety profile, tetrahydrozoline is likely to maintain its OTC status with minimal changes to its labeling (95% confidence).
Decongestant, Sympathomimetic
Imidazoline