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tetrahydrozoline nasal

Pronunciation: TE tra hye DROZ oh leen

Brand: Tyzine Nasal

What is the most important information I should know about tetrahydrozoline nasal?

Multum donot

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, coronary artery disease, high blood pressure, diabetes, or a thyroid disorder.

Multum donot

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.

What is tetrahydrozoline nasal?

Tetrahydrozoline is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).

Tetrahydrozoline nasal is used to treat nasal and sinus congestion.

Tetrahydrozoline nasal may also be used for purposes not listed in this medication guide.

What should I discuss with my health care provider before taking tetrahydrozoline nasal?

Multum donot

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

Multum donot

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.
Multum nopreg

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.

Multum nobrfeed

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.

Multum nochild

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

How should I take tetrahydrozoline 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.

Multum donot

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.

Multum rt

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

What happens if I miss a dose?

Since tetrahydrozoline is often used as needed, you may not be on a dosing schedule. If you are using the medication regularly, use the missed dose as soon as you remember. If it is almost time for your next dose, wait until then to use the medicine and skip the missed dose. Do not use extra medicine to make up the missed dose.

What happens if I overdose?

Multum emt

Seek emergency medical attention if you think you have used too much of this medicine.

Overdose symptoms may include extreme drowsiness, blurred vision, severe sweating, slow heart rate, trouble breathing, and feeling light-headed or fainting.

What should I avoid while taking tetrahydrozoline nasal?

Follow your doctor's instructions about any restrictions on food, beverages, or activity while you are using tetrahydrozoline nasal.

What are the possible side effects of tetrahydrozoline nasal?

Multum emt

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Multum emt

Stop using tetrahydrozoline and call your doctor at once if you have any of these serious side effects:

  • severe burning, stinging, redness, or swelling of your nose;
  • fast or pounding heartbeats; or
  • tremors, uncontrolled shaking.

Less serious side effects may include:

  • runny or stuffy nose;
  • sneezing;
  • headache;
  • drowsiness;
  • sleep problems (insomnia); or
  • headache.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect tetrahydrozoline nasal?

There may be other drugs that can interact with tetrahydrozoline nasal. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.

Where can I get more information?

Your pharmacist can provide more information about tetrahydrozoline nasal.


Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

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