Mucinex Fast-Max
Dextromethorphan hydrobromide, Guaifenesin, Phenylephrine Hydrochloride · Tablet, Coated · Oral
Active ingredient
Dextromethorphan HBr 10 mg Guaifenesin 200 mg Active ingredients (in each caplet) Purposes Dextromethorphan HBr 10 mg Cough suppressant Guaifenesin 200 mg Expectorant
Purpose
Active ingredients (in each caplet) Purposes Dextromethorphan HBr 10 mg Cough suppressant Guaifenesin 200 mg Expectorant
Uses
Uses helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive temporarily relieves: cough due to minor throat and bronchial irritation as may occur with the common cold or inhaled irritants the intensity of coughing the impulse to cough to help you get to sleep nasal congestion due to a cold
Warnings
Warnings 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. Ask a doctor before use if you have heart disease diabetes high blood pressure thyroid disease trouble urinating due to an enlarged prostate gland persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema cough that occurs with too much phlegm (mucus) When using this product do not use more than directed Stop use and ask a doctor if nervousness, dizziness, or sleeplessness occur symptoms do not get better within 7 days or occur with fever cough 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 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.
Ask a doctor before use
Ask a doctor before use if you have heart disease diabetes high blood pressure thyroid disease trouble urinating due to an enlarged prostate gland persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema cough that occurs with too much phlegm (mucus)
When using this product
When using this product do not use more than directed
Stop use and ask a doctor
Stop use and ask a doctor if nervousness, dizziness, or sleeplessness occur symptoms do not get better within 7 days or occur with fever cough 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 12 caplets in any 24-hour period adults and children 12 years of age and over: take 2 caplets every 4 hours children under 12 years of age: do not use
Other information
Other information store at 20-25°C (68-77°F)
Inactive ingredients
Inactive ingredients aluminum, croscarmellose sodium, FD&C blue no. 2 aluminum lake, FD&C red no. 40 aluminum lake, methacrylic acid and ethyl acrylate copolymer, mica, microcrystalline cellulose, polyethylene glycol, polysorbate 80, polyvinyl alcohol, povidone, sodium bicarbonate, talc, titanium dioxide
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 19, 2026). Long sections are shortened; the complete label is on DailyMed.
Active ingredients
- Dextromethorphan Hydrobromide in 9 products
- Guaifenesin in 9 products
- Phenylephrine Hydrochloride in 7 products
- Acetaminophen in 4 products
Mucinex Fast-Max NDC products (9)
| NDC | Strength & form | Labeler | Type |
|---|---|---|---|
| 63824-015 | Acetaminophen 650 mg/20mL; Dextromethorphan Hydrobromide 20 mg/20mL; Guaifenesin 400 mg/20mL; Phenylephrine… Solution | Reckitt Benckiser LLC | OTC MONOGRAPH DRUG |
| 63824-019 | Dextromethorphan Hydrobromide 20 mg/20mL; Guaifenesin 400 mg/20mL Solution | Reckitt Benckiser LLC | OTC MONOGRAPH DRUG |
| 63824-193 | Guaifenesin 200 mg/1; Dextromethorphan Hydrobromide 10 mg/1; Phenylephrine Hydrochloride 5 mg/1 Tablet, Coated | Reckitt Benckiser LLC | OTC MONOGRAPH DRUG |
| 63824-237 | Acetaminophen 325 mg/1; Dextromethorphan Hydrobromide 10 mg/1; Guaifenesin 200 mg/1; Phenylephrine Hydrochloride 5 mg/1 Tablet, Coated | Reckitt Benckiser LLC | OTC MONOGRAPH DRUG |
| 63824-514 | Acetaminophen 325 mg/1; Guaifenesin 200 mg/1; Phenylephrine Hydrochloride 5 mg/1; Dextromethorphan Hydrobromide 10 mg/1 Tablet, Film Coated | Reckitt Benckiser LLC | OTC MONOGRAPH DRUG |
| 63824-515 | Guaifenesin 200 mg/1; Phenylephrine Hydrochloride 5 mg/1; Dextromethorphan Hydrobromide 10 mg/1 Tablet, Film Coated | Reckitt Benckiser LLC | OTC MONOGRAPH DRUG |
| 63824-540 | Dextromethorphan Hydrobromide 20 mg/20mL; Guaifenesin 400 mg/20mL; Phenylephrine Hydrochloride 10 mg/20mL Solution | Reckitt Benckiser LLC | OTC MONOGRAPH DRUG |
| 63824-591 | Acetaminophen 325 mg/1; Dextromethorphan Hydrobromide 10 mg/1; Guaifenesin 200 mg/1; Phenylephrine Hydrochloride 5 mg/1 Capsule, Liquid Filled | Reckitt Benckiser LLC | OTC MONOGRAPH DRUG |
| 72854-157 | Guaifenesin 200 mg/1; Dextromethorphan Hydrobromide 10 mg/1 Tablet, Coated | Reckitt Benckiser LLC | OTC MONOGRAPH DRUG |
Mucinex Fast-Max recalls
- D-1363-2015 Sep 2, 2015 · Class I · Terminated
Labeling: Label Mix-Up; Bottles of Mucinex Fast-Max liquid are correctly labeled on the front of the label, however the back of the bottle where the Drug Facts labeling is, is missing certain Active Ingredients such as…
Frequently asked questions
What is Mucinex Fast-Max used for?
Uses helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive temporarily relieves: cough due to minor throat and bronchial irritation as may occur with the common cold or inhaled irritants the intensity of coughing the impulse to cough to help you get to sleep nasal congestion due to a cold
Who makes Mucinex Fast-Max?
Mucinex Fast-Max is listed by 1 labeler in the FDA NDC directory, including Reckitt Benckiser LLC.
Has Mucinex Fast-Max been recalled?
The FDA enforcement database lists 1 recall for Mucinex Fast-Max, most recently D-1363-2015 (class i): Labeling: Label Mix-Up; Bottles of Mucinex Fast-Max liquid are correctly labeled on the front of the label, however the back of the bottle where the Drug Facts…