Tetrahydrozoline is a form of a medicine called imidazoline, which is found in over-the-counter eye drops and nasal sprays. Tetrahydrozoline poisoning occurs when someone accidentally or intentionally swallows this product.

This is for information only and not for use in the treatment or management of an actual poison exposure. If you have an exposure, you should call your local emergency number (such as 911) or the National Poison Control Center at 1-800-222-1222.

Murine; Visine

• Tetrahydrozoline

Tetrahydrozoline is sold under the following brand names:

• Eyesine
• Geneye
• Murine Tears Plus
• Optigene 3
• Tyzine
• Visine Original and Advanced Relief

Note: This list may not be all-inclusive.

Next Section

Tetrahydrozoline poisoning Symptoms

Review Date: 02/02/2011
Reviewed By: Eric Perez, MD, Department of Emergency Medicine, St. Luke's-Roosevelt Hospital Center, New York, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)