Mucinex Fast-Max Chest Congestion Honey and Berry Flavor
Guaifenesin · Solution · Oral
Active ingredient
Active ingredient (in each 20 mL) Guaifenesin 400 mg
Purpose
Purpose Expectorant
Uses
Uses helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive
Warnings
Warnings Do not use for children under 12 years of age Ask a doctor before use if you have persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema cough that occurs with too much phlegm (mucus) Stop use and ask a doctor if cough lasts more than 7 days, comes back, or occurs with fever, rash, or headache that lasts. 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 for children under 12 years of age
Ask a doctor before use
Ask a doctor before use if you have persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema cough that occurs with too much phlegm (mucus)
Stop use and ask a doctor
Stop use and ask a doctor if cough lasts more than 7 days, comes back, or occurs with fever, rash, or headache that lasts. 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 do not take more than 6 doses in any 24-hour period measure only with dosing cup provided do not use dosing cup with other products dose as follows or as directed by a doctor adults and children 12 years of age and over: 20 mL in dosing cup provided every 4 hours children under 12 years of age: do not use
Other information
Other information each 20 mL contains: sodium 12 mg store at 20-25°C (68-77°F) do not refrigerate
Inactive ingredients
Inactive ingredients ammonium glycyrrhizate, anhydrous citric acid, edetate disodium, flavors, glycerin (soy), propylene glycol, purified water, sodium benzoate, sorbitol, sucralose, xanthan gum
Questions?
Questions? 1-866-MUCINEX (1-866-682-4639) You may also report side effects to this phone number.
Label text from the FDA structured product label by Reckitt Benckiser LLC (revised May 13, 2026). Long sections are shortened; the complete label is on DailyMed.
Active ingredients
- Guaifenesin in 1 product
Mucinex Fast-Max Chest Congestion Honey and Berry Flavor NDC products (1)
| NDC | Strength & form | Labeler | Type |
|---|---|---|---|
| 63824-537 | Guaifenesin 400 mg/20mL Solution | Reckitt Benckiser LLC | OTC MONOGRAPH DRUG |
Frequently asked questions
What is Mucinex Fast-Max Chest Congestion Honey and Berry Flavor used for?
Uses helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive
Who makes Mucinex Fast-Max Chest Congestion Honey and Berry Flavor?
Mucinex Fast-Max Chest Congestion Honey and Berry Flavor is listed by 1 labeler in the FDA NDC directory, including Reckitt Benckiser LLC.