Mucinex Fastmax Nighttime DM MAX
Dextromethorphan Hydrobromide, Triprolidine Hydrochloride · Solution · Oral
Active ingredient
Active ingredients (in each 20 mL) Dextromethorphan HBr 20 mg Triprolidine HCl 2.5 mg
Purpose
Purpose: Dextromethorphan HBr 20 mg..........Cough suppressant Triprolidine HCl 2.5 mg...............................Antihistamine
Uses
Uses ■ 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 ■ runny nose ■ sneezing ■ itching of the nose or throat ■ itchy, watery eyes due to hay fever
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 ■ glaucoma ■ trouble urinating due to an enlarged prostate gland ■ a breathing problem such as emphysema or chronic bronchitis ■ persistent or chronic cough such as occurs with smoking, asthma, or emphysema ■ cough that occurs with too much phlegm (mucus) Ask a doctor or pharmacist before use if you are taking sedatives or tranquilizers When using this product ■ do not use more than directed ■ excitability may occur, especially in children ■ marked drowsiness may occur ■ alcohol, sedatives, and tranquilizers may increase drowsiness ■ avoid alcoholic drinks ■ use caution when driving a motor vehicle or operating machinery 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.
Keep out of reach of children
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.
Directions
Directions ■ do not take more than 4 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
Inactive ingredients
Inactive ingredients ammonium glycyrrhizate, anhydrous citric acid, carmine, edetate disodium, flavor, glycerin (soy), maltodextrin, propylene glycol, purified water, sodium benzoate, sorbitol, sucralose, xanthan gum
Questions?
Questions? 1-866-MUCINEX (1-866-682-4639)
Label text from the FDA structured product label by RB Health (US) LLC (revised Mar 25, 2026). Long sections are shortened; the complete label is on DailyMed.
Active ingredients
- Triprolidine Hydrochloride in 1 product
- Dextromethorphan Hydrobromide in 1 product
Mucinex Fastmax Nighttime DM MAX NDC products (1)
| NDC | Strength & form | Labeler | Type |
|---|---|---|---|
| 72854-141 | Triprolidine Hydrochloride 2.5 mg/20mL; Dextromethorphan Hydrobromide 20 mg/20mL Solution | RB Health (US) LLC | OTC MONOGRAPH DRUG |
Frequently asked questions
What is Mucinex Fastmax Nighttime DM MAX used for?
Uses ■ 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 ■ runny nose ■ sneezing ■ itching of the nose or throat ■ itchy, watery eyes due to hay fever
Who makes Mucinex Fastmax Nighttime DM MAX?
Mucinex Fastmax Nighttime DM MAX is listed by 1 labeler in the FDA NDC directory, including RB Health (US) LLC.