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mucinex dm

Mucinex Dm is a combination medicine containing Dextromethorphan Hydrobromide and Guaifenesin.

Dextromethorphan Hydrobromide and Guaifenesin · by Rb Hlth

Not yet rated· sourced from the FDA label
Rated against independent regulatory sources·Last updated June 7, 2026·How we rate
Verified againstopenFDANIH DailyMedRxClass
~$2.55 /30
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Key facts

Active ingredient
Dextromethorphan Hydrobromide and Guaifenesin
Form
Tablet, extended release
Strength
Dextromethorphan Hydrobromide 30MG; Guaifenesin 600MG · Dextromethorphan Hydrobromide 60MG; Guaifenesin 1.2GM
Type
Over-the-counter (OTC)
Brand or generic
Brand-name
Manufacturer
Rb Hlth
What the pharmacy pays
~$2.55 for 30 — not your price
FDA application
NDA021620

What is Mucinex Dm?

From the FDA label: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

How to use

Directions do not crush, chew, or break tablet take with a full glass of water this product can be administered without regard for timing of meals adults and children 12 years and older: 1 tablet every 12 hours; not more than 2 tablets in 24 hours children under 12 years of age: do not use

Warnings

Important safety information

Do not use for children under 12 years of age 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 persistent or chronic cough such as occurs with smoking, asthma, chronic bronchitis, or emphysema cough accompanied by too much phlegm (mucus) When using this product do not use more than directed Stop use and ask a doctor if cough lasts more than 7 days, comes back, or occurs with fever, rash, or persistent headache. These could be signs of a serious illness. 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.

Dosage forms

Tablet, extended release

The forms currently marketed in the U.S., per the FDA National Drug Code Directory.

Ways to save

Ask for the generic

Same active ingredient, far cheaper. Is there a generic? →

Request a 90-day supply

Bulk fills usually lower the per-dose price vs monthly refills.

Use copay cards

Manufacturer copay cards & patient-assistance programs — especially for brand drugs.

Compare alternatives

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Frequently asked questions

How much does Mucinex Dm cost?
Nobody can tell you what you will pay — your price is set by your insurer's formulary, your deductible and the pharmacy's markup, and none of those are published. What IS published is what the pharmacy paid to acquire it: about $2.55 for 30, per the CMS NADAC survey. Treat that as the floor, not the quote — ask the pharmacist for the cash price as well as your copay, because for cheap generics the cash price often wins.
Is there a coupon or discount for Mucinex Dm?
pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Mucinex Dm. To pay less, look for a store-brand version with the same active ingredient (Dextromethorphan Hydrobromide and Guaifenesin), which is typically cheaper, and compare unit prices. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
Who makes Mucinex Dm?
Mucinex Dm is marketed by Rb Hlth. You can see Rb Hlth's full profile, rating, and other products on pharmaranks.
Is Mucinex Dm a brand-name or generic drug?
Mucinex Dm is a brand-name product with the active ingredient Dextromethorphan Hydrobromide and Guaifenesin.
Is Mucinex Dm available over the counter?
Yes. Mucinex Dm is an over-the-counter (OTC) product — you can buy it without a prescription. Follow the label directions and ask a pharmacist if you're unsure whether it's right for you.
What forms does Mucinex Dm come in?
Mucinex Dm is currently marketed as tablet, extended release, per the FDA's National Drug Code Directory.
Is Mucinex Dm FDA-registered?
Mucinex Dm is on record with the U.S. FDA under application number NDA021620. You can verify this on its official FDA label.
Is Mucinex Dm safe?
There's no single safe-or-not verdict, and we don't yet have a composite recall-safety score for Mucinex Dm. Review its FDA-label side effects and warnings below, and always consult a licensed professional.

Clinical content sourced from the FDA label via openFDA (U.S. FDA). View the FDA label on DailyMed → Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.

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