About tetrahydrozoline
Ocular alpha-adrenergic decongestant
Used for
- Temporarily relieves minor eye redness from irritation, dryness, or environmental exposure.
Usual adult dose
Usually 1–2 drops in the affected eye(s) up to four times daily; follow product directions.
Usual dose in children
For ages 6 and older, usually 1–2 drops up to four times daily; younger children need clinician guidance.
Common side effects
- Temporary burning or stinging
- Blurred vision
- Eye irritation or dryness
- Dilated pupils
Important warnings
- For eye use only; do not use with contact lenses in place.
- Frequent or prolonged use can worsen redness; seek assessment if symptoms persist.
- Stop use for eye pain, vision changes, or worsening irritation.
- Keep the dropper tip clean and avoid touching the eye.
Pregnancy
Human safety data are limited; systemic absorption is usually low when used as directed.
Breastfeeding
Human safety data are limited; systemic absorption is usually low when used as directed.
Interactions
- Use caution with monoamine oxidase inhibitors, which may increase blood pressure effects.
- Other eye medicines may interact; separate drops by at least five minutes.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.