What should I discuss with my healthcare provider before using tetrahydrozoline and zinc ophthalmic?
If you have narrow-angle glaucoma, do not use tetrahydrozoline and zinc ophthalmic without your doctor’s advice. If you have certain conditions, you may need a dose adjustment or special tests to safely use this medication. Before using tetrahydrozoline and zinc ophthalmic, tell your doctor if you have: • heart disease; • high blood pressure; • asthma; or • glaucoma.