Your activity: 16 p.v.

Tetrahydrozoline (nasal): Drug information

Tetrahydrozoline (nasal): Drug information
(For additional information see "Tetrahydrozoline (nasal): Patient drug information")

For abbreviations, symbols, and age group definitions used in Lexicomp (show table)
Pharmacologic Category
  • Adrenergic Agonist Agent;
  • Decongestant;
  • Imidazoline Derivative
Dosing: Adult
Nasal congestion

Nasal congestion: Intranasal: Instill 2-4 drops or 3-4 sprays of 0.1% solution into each nostril every 3-4 hours as needed, no more frequently than every 3 hours.

Dosing: Pediatric
Nasal congestion

Nasal congestion: Intranasal:

Children 2-6 years: Instill 2-3 drops of 0.05% solution into each nostril every 4-6 hours as needed, no more frequently than every 3 hours

Children >6 years: Refer to adult dosing.

Dosing: Older Adult

Refer to adult dosing.

Generic Equivalent Available: US

No

Use: Labeled Indications

Symptomatic relief of nasal congestion

Medication Safety Issues
Other safety concerns:

Accidental ingestion: Serious adverse reactions (eg, coma, bradycardia, respiratory depression, sedation) requiring hospitalization have been reported in children ≤5 years of age who have accidentally ingested even small amounts (eg, 1-2 mL) of imidazoline-derivative (ie, tetrahydrozoline, oxymetazoline, or naphazoline) eye drops or nasal sprays. Store these products out of reach of children at all times. Contact poison control or seek medical attention if accidental ingestion occurs.

Adverse Reactions

The following adverse drug reactions and incidences are derived from product labeling unless otherwise specified.

>10%: Respiratory: Sneezing, stinging sensation of the nose

1% to 10%:

Cardiovascular: Hypertension, palpitations, tachycardia

Central nervous system: Headache

Neuromuscular & skeletal: Tremor

Ophthalmic: Blurred vision

Contraindications

Hypersensitivity to tetrahydrozoline or any component of the formulation. The 0.5% solution is contraindicated in children <2 years of age. The 0.1% solution is contraindicated in children <6 years of age.

Warnings/Precautions

Concerns related to adverse effects:

• Somnolence: Profound sedation may occur in children following overdose. This may be accompanied by diaphoresis, hypotension, and/or shock. Do not exceed recommended dosages.

Disease-related concerns:

• Cardiovascular disease: Use with caution in patients with cardiovascular disease, including hypertension and coronary artery disease.

• Endocrine disorders: Use with caution in patients with endocrine disorders, including diabetes and hyperthyroidism.

Other warnings/precautions:

• Appropriate use: For intranasal use only.

• Accidental ingestion: Accidental ingestion by children of over-the-counter (OTC) imidazoline-derivative eye drops and nasal sprays may result in serious harm. Serious adverse reactions (eg, coma, bradycardia, respiratory depression, sedation) requiring hospitalization have been reported in children ≤5 years of age who had ingested even small amounts (eg, 1-2 mL). Contact a poison control center and seek emergency medical care immediately for accidental ingestion (FDA Drug Safety Communication, 2012).

Metabolism/Transport Effects

None known.

Drug Interactions

Note: Interacting drugs may not be individually listed below if they are part of a group interaction (eg, individual drugs within “CYP3A4 Inducers [Strong]” are NOT listed). For a complete list of drug interactions by individual drug name and detailed management recommendations, use the Lexicomp drug interactions program by clicking on the “Launch drug interactions program” link above.

Esketamine: Decongestants (Nasally Administered) may diminish the therapeutic effect of Esketamine. Management: Patients who require a nasal decongestant on an esketamine dosing day should administer the nasal decongestant at least 1 hour before esketamine. Risk D: Consider therapy modification

FentaNYL: Decongestants may decrease the serum concentration of FentaNYL. Risk C: Monitor therapy

Monoamine Oxidase Inhibitors: May enhance the hypertensive effect of Tetrahydrozoline (Nasal). Risk X: Avoid combination

Pregnancy Considerations

Animal reproduction studies have not been conducted.

Monitoring Parameters

Blood pressure, heart rate, symptom response

Mechanism of Action

Stimulates alpha-adrenergic receptors in the arterioles of the nasal mucosa to produce vasoconstriction

Pharmacokinetics

Onset of action: Decongestant: 4-8 hours

Pricing: US

Solution (Tyzine Nasal)

0.05% (15 mL): $91.78

Disclaimer: The pricing data provide a representative AWP and/or AAWP price from a single manufacturer of the brand and/or generic product, respectively. The pricing data should be used for benchmarking purposes only, and as such should not be used to set or adjudicate any prices for reimbursement or purchasing functions. Pricing data is updated monthly.

Brand Names: International
  • Tyzine (AE)


For country code abbreviations (show table)
  1. Food and Drug Administration. FDA Drug Safety Communication: Serious adverse events from accidental ingestion by children of over-the-counter eye drops and nasal sprays. U.S. Food and Drug Administration. October 25, 2012. Available at http://www.fda.gov/Drugs/DrugSafety/ucm325257.htm. Accessed September 5, 2013.
Topic 9935 Version 101.0