Mucinex Instasoothe
Hexylresorcinol and Menthol · Lozenge · Oral
Active ingredient
Active ingredients (in each lozenge) Hexylresorcinol 2 mg Menthol 6.1 mg
Purpose
Purpose Hexylresorcinol 2 mg - Oral pain reliever Menthol 6.1 mg - Cough suppressant
Uses
Uses temporarily relieves: ■ occasional minor irritation and pain due to a sore mouth or sore throat ■ pain associated with canker sores ■ cough due to minor throat and bronchial irritation as may occur with the common cold
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 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 accompanied by excessive 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 ■ 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.
Do not use
Do not use in children under 6 years of age
When using this product
When using this product do not exceed recommended dosage
Stop use and ask a doctor
Ask a doctor before use if you have ■ persistent or chronic cough such as occurs with smoking, asthma, or emphysema ■ cough accompanied by excessive 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 ■ 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.
Keep out of reach of children
Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.
Directions
Directions ■ adults and children 6 years of age and older: allow one lozenge to dissolve slowly in the mouth; may be repeated every 2 hours as needed or as directed by a doctor or dentist. ■ children under 6 years of age: do not use
Other information
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 ingredients
Inactive ingredients D&C yellow no. 10, FD&C blue no. 1, FD&C red no. 40, flavor, hydrogenated starch hydrolysate, isomalt, purified water, sucralose
Questions?
Questions? 1-866-MUCINEX (1-866-682-4639)
Label text from the FDA structured product label by Reckitt Benckiser LLC (revised Sep 1, 2026). Long sections are shortened; the complete label is on DailyMed.
Active ingredients
- Hexylresorcinol in 4 products
- Dextromethorphan Hydrobromide in 2 products
- Benzocaine in 1 product
- Menthol, Unspecified Form in 1 product
- Menthol in 1 product
Mucinex Instasoothe NDC products (6)
| NDC | Strength & form | Labeler | Type |
|---|---|---|---|
| 72854-261 | Hexylresorcinol 2.4 mg/1 Lozenge | Reckitt Benckiser LLC | OTC MONOGRAPH DRUG |
| 72854-262 | Hexylresorcinol 2 mg/1 Lozenge | Reckitt Benckiser LLC | OTC MONOGRAPH DRUG |
| 72854-263 | Dextromethorphan Hydrobromide 5 mg/1; Hexylresorcinol 2 mg/1 Lozenge | Reckitt Benckiser LLC | OTC MONOGRAPH DRUG |
| 72854-265 | Benzocaine 7 g/100mL; Menthol, Unspecified Form 1 g/100mL Spray | Reckitt Benckiser LLC | OTC MONOGRAPH DRUG |
| 72854-267 | Dextromethorphan Hydrobromide 5 mg/1 Lozenge | Reckitt Benckiser LLC | OTC MONOGRAPH DRUG |
| 72854-268 | Hexylresorcinol 2 mg/1; Menthol 6.1 mg/1 Lozenge | Reckitt Benckiser LLC | OTC MONOGRAPH DRUG |
Frequently asked questions
What is Mucinex Instasoothe used for?
Uses temporarily relieves: ■ occasional minor irritation and pain due to a sore mouth or sore throat ■ pain associated with canker sores ■ cough due to minor throat and bronchial irritation as may occur with the common cold
Who makes Mucinex Instasoothe?
Mucinex Instasoothe is listed by 1 labeler in the FDA NDC directory, including Reckitt Benckiser LLC.