Official product label reference

Mucinex Instasoothe Sore Throat Plus Cough Relief — Reckitt Benckiser LLC

This page contains 16 source sections for DEXTROMETHORPHAN HYDROBROMIDE AND HEXYLRESORCINOL, oral route. Label set 8d670d91-9e22-45b9-b568-5b62c2133d32, version 6.

Retrieved 2026-10-02 · openFDA dataset updated 2026-10-02 · Check the current DailyMed label

Label records can cover multiple strengths or package sizes. A label listing does not by itself establish FDA approval or current market availability. Check the source and application history for this specific product.

Uses described in the label

Uses temporarily relieves: cough due to minor throat and bronchial irritation as may occur with the common cold occasional irritation and pain due to a sore mouth or sore throat pain associated with canker sores

Purpose

Dosage and administration — label text

Directions dose as follows or as directed by a doctor or dentist adults and children 12 years of age and older take 2 lozenges (one immediately after the other) and allow each lozenge to dissolve slowly in the mouth; may be repeated every 4 hours as needed, not to exceed 12 lozenges in any 24-hour period children 6 to under 12 years of age take 1 lozenge and allow product to dissolve slowly in the mouth; may be repeated every 4 hours as needed, not to exceed 6 lozenges in any 24-hour period children under 6 years of age do not use Table text from source: | adults and children 12 years of age and older | take 2 lozenges (one immediately after the other) and allow each lozenge to dissolve slowly in the mouth; may be repeated every 4 hours as needed, not to exceed 12 lozenges in any 24-hour period | children 6 to under 12 years of age | take 1 lozenge and allow product to dissolve slowly in the mouth; may be repeated every 4 hours as needed, not to exceed 6 lozenges in any 24-hour period | children under 6 years of age | do not use

Warnings

Warnings Sore throat warning : If sore throat is severe, persists for more than 2 days, is accompanied or followed by fever, headache, rash, swelling, nausea, or vomiting, consult a doctor promptly. Do not use if you are now taking a prescription monoamine oxidase inhibitor (MAOI) (certain drugs for depression, psychiatric, or emotional conditions, or Parkinson's disease), or for 2 weeks after stopping the MAOI drug. If you do not know if your prescription drug contains an MAOI, ask a doctor or pharmacist before taking this product. in children under 6 years of age When using this product do not exceed recommended dosage Ask a doctor before use if you have persistent or chronic cough such as occurs with smoking, asthma, or emphysema cough that occurs with too much phlegm (mucus) Stop use and ask a doctor or dentist if sore mouth symptoms do not improve in 7 days irritation, pain, or redness persists or worsens swelling develops cough lasts more than 7 days, comes back, or occurs with fever, rash, or persistent headache. These could be signs of a serious condition. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.

Unclassified section

Drug Facts Dist. by: Reckitt Benckiser Nutley, NJ 07110-6100 Made in Thailand

Active ingredient

Active ingredients (in each lozenge) Dextromethorphan HBr 5 mg Hexylresorcinol 2 mg Active ingredients (in each lozenge) Purposes Dextromethorphan HBr 5 mg Cough suppressant Hexylresorcinol 2 mg Oral pain reliever Table text from source: | Active ingredients (in each lozenge) | Purposes | Dextromethorphan HBr 5 mg | Cough suppressant | Hexylresorcinol 2 mg | Oral pain reliever

Do not use

Do not use if you are now taking a prescription monoamine oxidase inhibitor (MAOI) (certain drugs for depression, psychiatric, or emotional conditions, or Parkinson's disease), or for 2 weeks after stopping the MAOI drug. If you do not know if your prescription drug contains an MAOI, ask a doctor or pharmacist before taking this product. in children under 6 years of age

While using this medicine

When using this product do not exceed recommended dosage

Ask a doctor before use

Ask a doctor before use if you have persistent or chronic cough such as occurs with smoking, asthma, or emphysema cough that occurs with too much phlegm (mucus)

When to stop use and seek help

Stop use and ask a doctor or dentist if sore mouth symptoms do not improve in 7 days irritation, pain, or redness persists or worsens swelling develops cough lasts more than 7 days, comes back, or occurs with fever, rash, or persistent headache. These could be signs of a serious condition.

Pregnancy or breast feeding

If pregnant or breast-feeding, ask a health professional before use.

Child safety

Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.

Storage and handling

Other information store at 20-25°C (68-77°F) protect contents from humidity keep lozenge in outer pack until use. Reseal outer pack after use.

Inactive ingredient

Inactive ingredients corn syrup, D&C yellow no. 10, ethyl lactate, FD&C blue no. 1, flavor, propylene glycol, purified water, sucrose

Questions

Questions? 1-866-MUCINEX (1-866-682-4639)

Recent major changes

Official sources and product identifiers

DailyMed — complete source labelVerify the current version and original formatting, including tables and diagrams.
openFDA — structured source recordMachine-readable label source, linked by the exact label set ID.

Substances listed: DEXTROMETHORPHAN HYDROBROMIDE, HEXYLRESORCINOL

RxNorm identifiers: 2566823

Package NDC codes

72854-263-20, 72854-263-40

Further research and background

These are external searches for related information. Research, encyclopedia and news articles have not been imported into this product record.

Coverage and corrections

The text is extracted from a US structured product label. Tables are represented as text where supplied; formatting and illustrations may be lost. A missing section does not mean a risk is absent. This reference has not been independently reviewed by a clinician and is not a live safety-alert service.

Source retrieved 2026-10-02. Read the source policy.

Mucinex Instasoothe Sore Throat Plus Cough Relief drug information