MUCOSAN Max-Action - Cough & Congestion Medicine | 6 Fl Oz

Key Drug Facts

Three active ingredients in one formula for cough, phlegm, and nasal congestion associated with the common cold.

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• Active ingredients per 20 mL: dextromethorphan HBr 20 mg (cough suppressant), guaifenesin 400 mg (expectorant), and phenylephrine HCl 10 mg (nasal decongestant).
• Label uses: helps loosen phlegm and thin bronchial secretions; temporarily relieves nasal congestion and cough due to minor throat and bronchial irritation associated with the common cold.
• Label directions: adults and children 12 years and over, 20 mL every 4 hours; do not exceed 6 doses in 24 hours. Children under 12: do not use.
• Size: oral liquid, 6 fl oz.

Important: measure only with the included dosing cup and read the complete Drug Facts panel. Do not exceed the dose. Review warnings about MAO inhibitors, blood pressure, heart or thyroid disease, diabetes, pregnancy or breast-feeding, and persistent cough before use.

Inactive ingredients and storage

Anhydrous citric acid, edetate disodium, FD&C blue #1, FD&C red #40, flavors, glycerin, propylene glycol, propyl gallate, purified water, sodium benzoate, sorbitol, sucralose and xanthan gum.

Store at 15–30 °C (59–86 °F); do not refrigerate. Measure only with the included dosing cup and keep it with the bottle. Read the full product label before use; this guide does not replace its warnings.

Warnings to review

• Do not use with a prescription MAOI or within 2 weeks of stopping one.
• Ask a doctor before use for heart disease, high blood pressure, diabetes, thyroid disease, persistent cough or excessive phlegm.
• Ask a doctor or pharmacist before use with other oral nasal decongestants or stimulants.
• Stop use and ask a doctor for nervousness, dizziness or sleeplessness; symptoms that do not improve within 7 days or occur with fever; or persistent or returning cough with fever, rash or persistent headache.
• For formulas labeled for ages 12 and over, also ask about trouble urinating due to an enlarged prostate; ask a health professional before use during pregnancy or breast-feeding.
• Keep out of reach of children. For overdose, get medical help or contact Poison Control immediately: 1-800-222-1222.

Explore MUCOSAN

• MUCOSAN brand guide
• MUCOSAN: a guide to five formulas and their labels
• MUCOSAN: ages, doses and the dosing cup
• MUCOSAN: acetaminophen, warnings and storage

Verified sources

• Drug Facts — Max-Action cough & congestion · DailyMed — NDC 53145-697-06

Product-gallery labels and Menper listings in DailyMed reviewed October 3, 2026.