10 Best Cough Medicine For Chest Congestion of 2026

Last updated on 05/11/2026

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Genexa Clean Cough & Chest Congestion Relief, Dye Free, 0% Artificial Additives, Multi-Symptom Maximum Strength Relief Cough Syrup, Cough Suppressant & Expectorant, Organic Blueberry Flavor, 6 fl oz

Genexa Clean Cough & Chest Congestion Relief, Dye Free, 0% Artificial Additives, Multi-Symptom Maximum Strength Relief Cough Syrup, Cough Suppressant & Expectorant, Organic Blueberry Flavor, 6 fl oz

Genexa

Why we love it

Effective relief for cough congestion.
Easy-to-take liquid formula.
Delicious organic blueberry flavor.

Main Highlights

[Cough & Chest Congestion Medicine for Adults]: Cough suppressant helps to temporarily relieve cough and chest congestion due to minor throat and bronchial irritation while the expectorant helps to loosen mucus.
[Easy to Take Liquid Cough Relief]: This easy-to-administer multi-symptom cough medicine makes taking your recommended dosage hassle-free.
[Delicious & Soothing Blueberry Taste]: Genexa liquid cough and congestion medicine for adults features a delicious Organic Blueberry flavor that adults will love.
[Ingredients You Want]: Our blueberry flavored cough medicine syrup for adults has no artificial sweeteners, artificial preservatives, dyes, parabens, or common allergens. It is certified organic, gluten-free, non-GMO, and free of alcohol.
[Clean Medicine]: Genexa Cough & Chest Congestion Medicine is made with the same active ingredients as Mucinex Fast-Max DM Max, but is free from artificial preservatives, artificial dyes, and common allergens. This ensures a clean and effective medicine for your cough and chest congestion.

9.9

Exceptional

9.9

Exceptional

Genexa

Genexa Clean Cough & Chest Congestion Relief, Dye Free, 0% Artificial Additives, Multi-Symptom Maximum Strength Relief Cough Syrup, Cough Suppressant & Expectorant, Organic Blueberry Flavor, 6 fl oz

Why we love it

Effective relief for cough congestion.
Easy-to-take liquid formula.
Delicious organic blueberry flavor.

Main Highlights

[Cough & Chest Congestion Medicine for Adults]: Cough suppressant helps to temporarily relieve cough and chest congestion due to minor throat and bronchial irritation while the expectorant helps to loosen mucus.
[Easy to Take Liquid Cough Relief]: This easy-to-administer multi-symptom cough medicine makes taking your recommended dosage hassle-free.
[Delicious & Soothing Blueberry Taste]: Genexa liquid cough and congestion medicine for adults features a delicious Organic Blueberry flavor that adults will love.
[Ingredients You Want]: Our blueberry flavored cough medicine syrup for adults has no artificial sweeteners, artificial preservatives, dyes, parabens, or common allergens. It is certified organic, gluten-free, non-GMO, and free of alcohol.
[Clean Medicine]: Genexa Cough & Chest Congestion Medicine is made with the same active ingredients as Mucinex Fast-Max DM Max, but is free from artificial preservatives, artificial dyes, and common allergens. This ensures a clean and effective medicine for your cough and chest congestion.

Value for Money

Mucinex DM 12Hr Maximum Strength Chest Congestion & Cough Medicine for Adults, Cold and Cough Medicine for Excess Mucus Relief, 1200 mg Guaifenesin & 60 mg Dextromethorphan HBr, 48 Bi-Layer Tablets

Mucinex DM 12Hr Maximum Strength Chest Congestion & Cough Medicine for Adults, Cold and Cough Medicine for Excess Mucus Relief, 1200 mg Guaifenesin & 60 mg Dextromethorphan HBr, 48 Bi-Layer Tablets

Mucinex

Why we love it

Powerful cough and cold relief.
Long-lasting symptom control.
Trusted quality and effectiveness.

Main Highlights

COUGH & COLD MEDICINE FOR ADULTS: Maximum Strength Mucinex DM 12-hour expectorant & cough suppressant packs a powerful punch with 60 mg dextromethorphan HBr & 1200 mg guaifenesin extended release tablets
EXCESS MUCUS RELIEF: Maximum Strength Mucinex DM 12hr provides powerful relief for your chest congestion & cough & lasts up to 12 hours; this cough suppressant for adults gives much needed relief from bothersome symptoms
EXPECTORANT FOR ADULTS: Maximum Strength Mucinex DM cough medicine for adults helps thin and loosen mucus for easier expectoration; Say goodbye to chest congestion and cough, say hello to excess mucus relief with our original bi-layer tablets
EXTENDED RELEASE GUAIFENESIN & DEXTROMETHORPHAN HBr: Experience long-lasting symptom relief with Maximum Strength Mucinex DM 12 hr extended-release 1200 mg guaifenesin and 60 mg dextromethorphan HBr tablets
COLD AND FLU MEDICINE FOR ADULTS: For powerful cough, cold, and flu multi-symptom relief, check out our range of Mucinex Fast-Max nighttime cold and flu & daytime cold and flu medicines; Beat cold and flu symptoms with confidence
USAGE: Use as directed; For ages 12+ years
QUALITY YOU CAN TRUST: Mucinex uses carbomer that is manufactured without the use of benzene

Mucinex DM 12Hr Maximum Strength Chest Congestion & Cough Medicine for Adults, Cold and Cough Medicine for Excess Mucus Relief, 1200 mg Guaifenesin & 60 mg Dextromethorphan HBr, 48 Bi-Layer Tablets

Why we love it

Powerful cough and cold relief.
Long-lasting symptom control.
Trusted quality and effectiveness.

Main Highlights

COUGH & COLD MEDICINE FOR ADULTS: Maximum Strength Mucinex DM 12-hour expectorant & cough suppressant packs a powerful punch with 60 mg dextromethorphan HBr & 1200 mg guaifenesin extended release tablets
EXCESS MUCUS RELIEF: Maximum Strength Mucinex DM 12hr provides powerful relief for your chest congestion & cough & lasts up to 12 hours; this cough suppressant for adults gives much needed relief from bothersome symptoms
EXPECTORANT FOR ADULTS: Maximum Strength Mucinex DM cough medicine for adults helps thin and loosen mucus for easier expectoration; Say goodbye to chest congestion and cough, say hello to excess mucus relief with our original bi-layer tablets
EXTENDED RELEASE GUAIFENESIN & DEXTROMETHORPHAN HBr: Experience long-lasting symptom relief with Maximum Strength Mucinex DM 12 hr extended-release 1200 mg guaifenesin and 60 mg dextromethorphan HBr tablets
COLD AND FLU MEDICINE FOR ADULTS: For powerful cough, cold, and flu multi-symptom relief, check out our range of Mucinex Fast-Max nighttime cold and flu & daytime cold and flu medicines; Beat cold and flu symptoms with confidence
USAGE: Use as directed; For ages 12+ years
QUALITY YOU CAN TRUST: Mucinex uses carbomer that is manufactured without the use of benzene

Robitussin Adult Maximum Strength Cough Plus Chest Congestion DM Max, Cough Suppressant and Expectorant, Raspberry Flavor, 8 Fl Oz x 2

Robitussin Adult Maximum Strength Cough Plus Chest Congestion DM Max, Cough Suppressant and Expectorant, Raspberry Flavor, 8 Fl Oz x 2

Robitussin

Why we love it

Fast relief from coughs.
Effective chest congestion support.
Raspberry flavor for daytime use.

Main Highlights

Two 8 fl oz bottles of Robitussin Adult Maximum Strength Cough Plus Chest Congestion DM Max, Cough Suppressant and Expectorant, Raspberry Flavor
Relief for cough and an expectorant for relief of chest congestion
Maximum-strength cough relief formula with expectorant that thins and loosens mucus for productive coughs
Raspberry flavored, daytime cough medicine delivers fast, effective cough relief
Cough suppressant and liquid expectorant suitable for adults and children 12 years and over
HSA and FSA eligible product

Robitussin Adult Maximum Strength Cough Plus Chest Congestion DM Max, Cough Suppressant and Expectorant, Raspberry Flavor, 8 Fl Oz x 2

Why we love it

Fast relief from coughs.
Effective chest congestion support.
Raspberry flavor for daytime use.

Main Highlights

Two 8 fl oz bottles of Robitussin Adult Maximum Strength Cough Plus Chest Congestion DM Max, Cough Suppressant and Expectorant, Raspberry Flavor
Relief for cough and an expectorant for relief of chest congestion
Maximum-strength cough relief formula with expectorant that thins and loosens mucus for productive coughs
Raspberry flavored, daytime cough medicine delivers fast, effective cough relief
Cough suppressant and liquid expectorant suitable for adults and children 12 years and over
HSA and FSA eligible product

Robitussin DM Max Cough Plus Chest Congestion and Robitussin Maximum Strength Nighttime Cough DM, Adult Formulas - 2 x 8 Fl Oz Bottles

Robitussin DM Max Cough Plus Chest Congestion and Robitussin Maximum Strength Nighttime Cough DM, Adult Formulas - 2 x 8 Fl Oz Bottles

Robitussin

Why we love it

Effective relief for coughs.
Convenient day and night options.
Easy-to-measure liquid formula.

Main Highlights

One 8 fl oz bottle of Robitussin Adult Maximum Strength Cough Plus Chest Congestion DM Max and One 8 fl oz bottle of Maximum Strength Nighttime Cough DM
Robitussin Cough Plus Chest Congestion daytime cold medicine delivers temporary relief from cough and chest congestion
Robitussin nighttime cold medicine for adults contains an antihistamine for relief of runny nose and sneezing and a cough suppressant to control your cough so you can sleep
Liquid cough suppressant for adults that's easy to measure and administer
Raspberry for daytime and Wildberry for nighttime cough medicine

Robitussin DM Max Cough Plus Chest Congestion and Robitussin Maximum Strength Nighttime Cough DM, Adult Formulas - 2 x 8 Fl Oz Bottles

Why we love it

Effective relief for coughs.
Convenient day and night options.
Easy-to-measure liquid formula.

Main Highlights

One 8 fl oz bottle of Robitussin Adult Maximum Strength Cough Plus Chest Congestion DM Max and One 8 fl oz bottle of Maximum Strength Nighttime Cough DM
Robitussin Cough Plus Chest Congestion daytime cold medicine delivers temporary relief from cough and chest congestion
Robitussin nighttime cold medicine for adults contains an antihistamine for relief of runny nose and sneezing and a cough suppressant to control your cough so you can sleep
Liquid cough suppressant for adults that's easy to measure and administer
Raspberry for daytime and Wildberry for nighttime cough medicine

Mucinex Fast-Max & NightShift Combo Pack - Max Strength Cough & Cold Medicines For Mucus Relief, Chest Congestion, Nasal Congestion, Sinus Congestion, Sinus Pressure, Cough Symptom Relief (2x 6 FL OZ)

Mucinex Fast-Max & NightShift Combo Pack - Max Strength Cough & Cold Medicines For Mucus Relief, Chest Congestion, Nasal Congestion, Sinus Congestion, Sinus Pressure, Cough Symptom Relief (2x 6 FL OZ)

Mucinex

Why we love it

Powerful multi-symptom relief.
Triple action formula works effectively.
Trusted brand doctors recommend.

Main Highlights

COUGH COLD AND FLU MEDICINES FOR ADULTS: This combo pack of Maximum Strength Mucinex Fast Max Severe Congestion & Cough and NightShift Cold & Flu provides powerful multi-symptom relief for your worst symptoms
EXPECTORANT & DECONGESTANTS FOR ADULTS: Maximum Strength Mucinex Fast-Max Severe Congestion & Cough has a Triple Action Formula that helps to relieve nasal & chest congestion, control cough & helps thin & loosen mucus to make coughs more productive
NIGHTTIME COLD AND FLU SYMPTOM RELIEF: Mucinex Nightshift Cold & Flu helps to reduce fever, relieve headache, minor aches and pains, sore throat, coughing, sneezing, & runny nose for a better morning
MUCINEX FAST-MAX SEVERE CONGESTION & COUGH ACTIVE INGREDIENTS: Dextromethorphan HBr - Cough suppressant; Guaifenesin - Expectorant; Phenylephrine HCI - Nasal decongestant
MUCINEX NIGHTSHIFT COLD & FLU ACTIVE INGREDIENTS: Contains Acetaminophen - Pain reliever and fever reducer; Dextromethorphan HBr - Cough suppressant; Triprolidine HCl – Antihistamine
USAGE: Use as directed; For ages 12+ years

Mucinex Fast-Max & NightShift Combo Pack - Max Strength Cough & Cold Medicines For Mucus Relief, Chest Congestion, Nasal Congestion, Sinus Congestion, Sinus Pressure, Cough Symptom Relief (2x 6 FL OZ)

Why we love it

Powerful multi-symptom relief.
Triple action formula works effectively.
Trusted brand doctors recommend.

Main Highlights

COUGH COLD AND FLU MEDICINES FOR ADULTS: This combo pack of Maximum Strength Mucinex Fast Max Severe Congestion & Cough and NightShift Cold & Flu provides powerful multi-symptom relief for your worst symptoms
EXPECTORANT & DECONGESTANTS FOR ADULTS: Maximum Strength Mucinex Fast-Max Severe Congestion & Cough has a Triple Action Formula that helps to relieve nasal & chest congestion, control cough & helps thin & loosen mucus to make coughs more productive
NIGHTTIME COLD AND FLU SYMPTOM RELIEF: Mucinex Nightshift Cold & Flu helps to reduce fever, relieve headache, minor aches and pains, sore throat, coughing, sneezing, & runny nose for a better morning
MUCINEX FAST-MAX SEVERE CONGESTION & COUGH ACTIVE INGREDIENTS: Dextromethorphan HBr - Cough suppressant; Guaifenesin - Expectorant; Phenylephrine HCI - Nasal decongestant
MUCINEX NIGHTSHIFT COLD & FLU ACTIVE INGREDIENTS: Contains Acetaminophen - Pain reliever and fever reducer; Dextromethorphan HBr - Cough suppressant; Triprolidine HCl – Antihistamine
USAGE: Use as directed; For ages 12+ years

Robitussin Adult Maximum Strength Cough + Chest Congestion DM Max (8 fl. oz. Bottle), Cough Suppressant & Expectorant, Raspberry Flavor

Robitussin Adult Maximum Strength Cough + Chest Congestion DM Max (8 fl. oz. Bottle), Cough Suppressant & Expectorant, Raspberry Flavor

Robitussin

Why we love it

Tackles mucus for effective relief.
Raspberry flavor makes it enjoyable.
Safe for adults and kids.

Main Highlights

One 8 fl oz bottle of Robitussin Maximum Strength Cough and Chest Congestion DM Liquid, Congestion Relief and Cough Medicine, Raspberry Flavor
Robitussin recently conducted a First of Its Kind Real‑World Evidence study showing that Robitussin DM Max helps provide fast, powerful cough relief that gets you back to everyday life from Day 1.
Cough suppressant for relief for cough and an expectorant for relief of chest congestion
Maximum-strength formula with expectorant that thins and loosens mucus for productive coughs
Raspberry flavored, daytime cough medicine delivers fast, effective cough relief
Suitable for adults and children 12 years and over
Take 20 mL by mouth every four hours while symptoms persist
HSA and FSA eligible product

Robitussin Adult Maximum Strength Cough + Chest Congestion DM Max (8 fl. oz. Bottle), Cough Suppressant & Expectorant, Raspberry Flavor

Why we love it

Tackles mucus for effective relief.
Raspberry flavor makes it enjoyable.
Safe for adults and kids.

Main Highlights

One 8 fl oz bottle of Robitussin Maximum Strength Cough and Chest Congestion DM Liquid, Congestion Relief and Cough Medicine, Raspberry Flavor
Robitussin recently conducted a First of Its Kind Real‑World Evidence study showing that Robitussin DM Max helps provide fast, powerful cough relief that gets you back to everyday life from Day 1.
Cough suppressant for relief for cough and an expectorant for relief of chest congestion
Maximum-strength formula with expectorant that thins and loosens mucus for productive coughs
Raspberry flavored, daytime cough medicine delivers fast, effective cough relief
Suitable for adults and children 12 years and over
Take 20 mL by mouth every four hours while symptoms persist
HSA and FSA eligible product

Robitussin Cough and Chest Congestion DM, Cough Suppressant and Expectorant, Raspberry Flavor - 8 Fl Oz Bottle

Robitussin Cough and Chest Congestion DM, Cough Suppressant and Expectorant, Raspberry Flavor - 8 Fl Oz Bottle

Robitussin

Why we love it

Fast-acting relief from cough.
Pleasant raspberry flavor enhances taste.
Easy to measure and administer.

Main Highlights

One 8 fluid ounce bottle of Robitussin Cough and Chest Congestion DM, Cough Suppressant and Expectorant, Raspberry Flavor
Cough medicine that controls and relieves frequent cough, plus thins mucus to relieve chest congestion
Liquid cough expectorant that's easy to measure and administer
Raspberry flavored cough and chest congestion expectorant provides fast relief
Cough suppressant relieves symptoms without slowing you down
Take 20 mL of Robitussin expectorant every four hours as needed
Formulated for adults and children 12 years and older
HSA and FSA eligible product

Robitussin Cough and Chest Congestion DM, Cough Suppressant and Expectorant, Raspberry Flavor - 8 Fl Oz Bottle

Why we love it

Fast-acting relief from cough.
Pleasant raspberry flavor enhances taste.
Easy to measure and administer.

Main Highlights

One 8 fluid ounce bottle of Robitussin Cough and Chest Congestion DM, Cough Suppressant and Expectorant, Raspberry Flavor
Cough medicine that controls and relieves frequent cough, plus thins mucus to relieve chest congestion
Liquid cough expectorant that's easy to measure and administer
Raspberry flavored cough and chest congestion expectorant provides fast relief
Cough suppressant relieves symptoms without slowing you down
Take 20 mL of Robitussin expectorant every four hours as needed
Formulated for adults and children 12 years and older
HSA and FSA eligible product

Mucinex Fast-Max Severe Congestion & Cough Medicine, Maximum Strength Symptom Relief, Over-The-Counter Medication, Cold Medicine, Cough Suppressant, Expectorant, Nasal Decongestant, 6 FL OZ

Mucinex Fast-Max Severe Congestion & Cough Medicine, Maximum Strength Symptom Relief, Over-The-Counter Medication, Cold Medicine, Cough Suppressant, Expectorant, Nasal Decongestant, 6 FL OZ

Mucinex

32% Off

Why we love it

Rapid multi-symptom relief.
Trusted by doctors and pharmacists.
Thins mucus for easier breathing.

Main Highlights

COUGH COLD AND FLU MEDICINES FOR ADULTS: Maximum Strength Mucinex Fast Max Severe Congestion & Cough provides powerful multi-symptom relief for your worst symptoms including cough, chest congestion, and nasal congestion
EXPECTORANTS AND DECONGESTANTS FOR ADULTS : Maximum Strength Mucinex Fast-Max Severe Congestion & Cough has a triple action formula that relieves nasal & chest congestion, controls cough & thins & loosens mucus to help clear lungs of excess mucus
POWERFUL COUGH & COLD ACTIVE INGREDIENTS: Contains Dextromethorphan HBr - Cough suppressant; Guaifenesin - Expectorant; Phenylephrine HCI - Nasal decongestant
USAGE: Use as directed; For ages 12+ years

Mucinex Fast-Max Severe Congestion & Cough Medicine, Maximum Strength Symptom Relief, Over-The-Counter Medication, Cold Medicine, Cough Suppressant, Expectorant, Nasal Decongestant, 6 FL OZ

32% Off

Why we love it

Rapid multi-symptom relief.
Trusted by doctors and pharmacists.
Thins mucus for easier breathing.

Main Highlights

COUGH COLD AND FLU MEDICINES FOR ADULTS: Maximum Strength Mucinex Fast Max Severe Congestion & Cough provides powerful multi-symptom relief for your worst symptoms including cough, chest congestion, and nasal congestion
EXPECTORANTS AND DECONGESTANTS FOR ADULTS : Maximum Strength Mucinex Fast-Max Severe Congestion & Cough has a triple action formula that relieves nasal & chest congestion, controls cough & thins & loosens mucus to help clear lungs of excess mucus
POWERFUL COUGH & COLD ACTIVE INGREDIENTS: Contains Dextromethorphan HBr - Cough suppressant; Guaifenesin - Expectorant; Phenylephrine HCI - Nasal decongestant
USAGE: Use as directed; For ages 12+ years

Mucinex Fast-Max Severe Congestion & Cough Medicine for Adults, Cough & Bothersome Mucus Relief with Dextromethorphan HBr & Guaifenesin, Cough Suppressant & Expectorant Medicine, 20 Count

Mucinex Fast-Max Severe Congestion & Cough Medicine for Adults, Cough & Bothersome Mucus Relief with Dextromethorphan HBr & Guaifenesin, Cough Suppressant & Expectorant Medicine, 20 Count

Mucinex

19% Off

Why we love it

Powerful relief for cold symptoms.
Effective cough suppression included.
Mucus thinning for easier breathing.

Main Highlights

COLD MEDICINE FOR ADULTS: Maximum Strength Mucinex Fast-Max Severe Congestion & Cough caplets provide powerful multi-symptom relief for your worst cold and cough symptoms
OVER-THE-COUNTER MEDICATION: Mucinex caplets contain active ingredients to help you feel better; Dextromethorphan HBr is a cough suppressant and Guaifenesin is an expectorant; Use as directed; For ages 12+
COUGH MEDICINE: Contains Dextromethorphan HBr, a cough suppressant, to help reduce the urge to cough
MUCUS RELIEF: The expectorant, Guaifenesin, provides mucus relief by thinning and loosening bothersome mucus in your chest, helping to clear chest congestion

Mucinex Fast-Max Severe Congestion & Cough Medicine for Adults, Cough & Bothersome Mucus Relief with Dextromethorphan HBr & Guaifenesin, Cough Suppressant & Expectorant Medicine, 20 Count

19% Off

Why we love it

Powerful relief for cold symptoms.
Effective cough suppression included.
Mucus thinning for easier breathing.

Main Highlights

COLD MEDICINE FOR ADULTS: Maximum Strength Mucinex Fast-Max Severe Congestion & Cough caplets provide powerful multi-symptom relief for your worst cold and cough symptoms
OVER-THE-COUNTER MEDICATION: Mucinex caplets contain active ingredients to help you feel better; Dextromethorphan HBr is a cough suppressant and Guaifenesin is an expectorant; Use as directed; For ages 12+
COUGH MEDICINE: Contains Dextromethorphan HBr, a cough suppressant, to help reduce the urge to cough
MUCUS RELIEF: The expectorant, Guaifenesin, provides mucus relief by thinning and loosening bothersome mucus in your chest, helping to clear chest congestion

Safetussin DM Cough & Chest Congestion, 8 oz, Expectorant Mucus Relief, Cough Relief Syrup, Safe for Adults with High Blood Pressure & Diabetes

Safetussin DM Cough & Chest Congestion, 8 oz, Expectorant Mucus Relief, Cough Relief Syrup, Safe for Adults with High Blood Pressure & Diabetes

Safetussin

9% Off

Why we love it

Safe for sensitive adults.
Effective cough and congestion relief.
Developed by a pharmacist.

Main Highlights

COUGH & CHEST CONGESTION RELIEF: Safetussin DM acts as a cough suppressant, loosens mucus, and relieves chest congestion to provide safe and effective cold relief
SAFE FOR ADULTS WITH HIGH BLOOD PRESSURE & DIABETES: Safetussin cough syrup is specially formulated for these conditions; it contains no sugar, fructose, sorbitol, alcohol, or decongestant
FREE OF: sugar, alcohol, gluten, dyes, decongestants, acetaminophen, sorbitol, and fructose
DEVELOPED BY A PHARMACIST: Safetussin DM Cough Syrup contains a cough suppressant (Dextromethorphan HBr) and an expectorant, guaifenesin; for simple, safe & effective relief without unwanted ingredients

Safetussin DM Cough & Chest Congestion, 8 oz, Expectorant Mucus Relief, Cough Relief Syrup, Safe for Adults with High Blood Pressure & Diabetes

9% Off

Why we love it

Safe for sensitive adults.
Effective cough and congestion relief.
Developed by a pharmacist.

Main Highlights

COUGH & CHEST CONGESTION RELIEF: Safetussin DM acts as a cough suppressant, loosens mucus, and relieves chest congestion to provide safe and effective cold relief
SAFE FOR ADULTS WITH HIGH BLOOD PRESSURE & DIABETES: Safetussin cough syrup is specially formulated for these conditions; it contains no sugar, fructose, sorbitol, alcohol, or decongestant
FREE OF: sugar, alcohol, gluten, dyes, decongestants, acetaminophen, sorbitol, and fructose
DEVELOPED BY A PHARMACIST: Safetussin DM Cough Syrup contains a cough suppressant (Dextromethorphan HBr) and an expectorant, guaifenesin; for simple, safe & effective relief without unwanted ingredients