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What should I discuss with my health care provider before taking tetrahydrozoline nasal (Tyzine Nasal)?

Do not use this medication if you are allergic to tetrahydrozoline.

Do not use tetrahydrozoline nasal if you have used an MAO inhibitor such as isocarboxazid (Marplan), phenelzine (Nardil), rasagiline (Azilect), selegiline (Eldepryl, Emsam), or tranylcypromine (Parnate) within the past 14 days. Serious, life-threatening side effects can occur if you take cough or cold medicine before the MAO inhibitor has cleared from your body.

Before using tetrahydrozoline nasal, tell your doctor if you are allergic to any drugs, or if you have:

• heart disease or coronary artery disease;
• high blood pressure;
• diabetes; or
• a thyroid disorder.

FDA pregnancy category C. This medication may be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment.

It is not known whether tetrahydrozoline nasal passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

Do not give this medication to a child without a doctor's advice.

How should I take tetrahydrozoline nasal (Tyzine Nasal)?

Use this medication exactly as directed on the label, or as prescribed by your doctor. Do not use it in larger amounts or for longer than recommended.

The adult dose of this medication (0.1% nasal spray) should not be used in a child younger than 6 years old. The child's dose (0.05% pediatric drops) should not be used in a child younger than 2 years old.

Use the nasal spray while standing or sitting, with your head upright. Tilt your head forward slightly, keep the bottle upright, and carefully insert the nasal applicator into your nostril. Squeeze the bottle quickly and sniff deeply at the same time.

If a second spray is required in that nostril, repeat the above steps.

To use the nasal drops, it is best to be lying down.

Store tetrahydrozoline nasal at room temperature away from moisture and heat.

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