Skip to main content

Compare
Mucinex vs. Mucinex D

Head-to-head comparisons of medication uses, side effects, warnings, and more.

Key takeaways

Guaifenesin ER (Mucinex ER) and Mucinex D (guaifenesin/pseudoephedrine) are both medications used to relieve chest congestion, but they have some important differences. Guaifenesin ER is an expectorant that helps loosen mucus in your airways, making it easier to cough out. Mucinex D combines guaifenesin with pseudoephedrine, a decongestant that relieves stuffy nose and sinus pressure by narrowing blood vessels in your nasal passages. Both medications are available over-the-counter and are taken orally every 12 hours by people aged 12 and older. However, Mucinex D may be controlled in some states because it contains pseudoephedrine. Both medications are available as a lower-cost generic. Common side effects of guaifenesin ER include nausea and headache, while Mucinex D can cause trouble sleeping and anxiety due to the pseudoephedrine. Additionally, Mucinex D should not be taken with monoamine oxidase inhibitors (MAOIs). Talk to your prescriber or pharmacist before taking if you have high blood pressure.

guaifenesin ER

 

Get free coupons

Mucinex D

(guaifenesin / pseudoephedrine)

Get free coupons

Summary for Mucinex

Over-the-counter

Guaifenesin extended-release (ER) is an over-the-counter expectorant used to relieve wet cough. It helps loosen phlegm in the throat and chest so you can cough it up more easily. Guaifenesin ER can be taken orally by adults and children 12 years and older, typically every 12 hours as needed. Most people experience few to no side effects after taking this medication as directed. Guaifenesin ER is available as a brand-name and generic medication.

Indications for Mucinex

  • Loosens and breaks up mucus in the airways (chest congestion)

Pros and Cons for Mucinex

Pros

  • Available as a lower-cost generic medication
  • Taken by mouth
  • Longer-lasting compared to guaifenesin IR

Cons

  • Tablets can't be cut or crushed
  • Not meant to be taken long-term
  • Guaifenesin in many over-the-counter products, so you can accidentally take too much

Common Side Effects for Mucinex

  • Nausea
  • Diarrhea
  • Dizziness
  • Headache

Warnings for Mucinex

  • Accidentally taking too much medication (overdose)

Summary for Mucinex D

Over-the-counter

Mucinex D is a combination medication containing two active ingredients: guaifenesin (an expectorant) and pseudoephedrine (a decongestant). It's used to help temporarily relieve stuffy nose, chest congestion, and sinus pressure. This medication can be used for people 12 years of age and older. It's an extended-release tablet that's taken by mouth every 12 hours and is also available as a lower-cost generic. Side effects can include trouble sleeping and headache.

Indications for Mucinex D

  • Short-term relief of stuffy nose due to allergies or the common cold
  • Loosens mucus to ease chest congestion
  • Sinus congestion and pressure

Pros and Cons for Mucinex D

Pros

  • Helps with stuffy nose, chest and sinus congestion, and wet cough
  • Combines two medications in a single product for convenience
  • Available over the counter without a prescription (in most states)
  • Doesn't cause drowsiness or sleepiness

Cons

  • More difficult to customize the dose since it's a fixed combination of two medications
  • Only available as an extended-release tablet, which can't be cut or crushed
  • Might not be the best choice for people with certain medical conditions, such as high blood pressure
  • Not the best choice if you're pregnant or breastfeeding

Common Side Effects for Mucinex D

Warnings for Mucinex D

  • Worsening of certain medical conditions
  • Accidentally taking too much medication

Prices with our coupons for Mucinex vs. Mucinex D

Price Card Drug Icon
Guaifenesin ER60 tablets / 600mg
$25.07-
Get free coupons
More Information
Price Card Drug Icon
Guaifenesin/Pseudoephedrine20 tablets / 600mg/60mg
$8.37$11.47
Get free coupons
More Information

Compare other Cough drugs

Benzonatate vs. MucinexFlonase vs. MucinexMucinex vs. DayquilMucinex vs. DelsymMucinex vs. Mucinex-d
Mucinex vs. Mucinex-dmMucinex vs. Nyquil-cold-and-fluMucinex vs. RobitussinMucinex vs. Robitussin-acRobitussin-multi-symptom-cold-cf vs. MucinexUnisom vs. MucinexAfrin vs. FlonaseAstepro vs. FlonaseAtrovent vs. FlonaseAzelastine vs. FlonaseBenzonatate vs. CodeineBenzonatate vs. DextromethorphanBenzonatate vs. GuaifenesinBenzonatate vs. PromethazineBenzonatate vs. RobitussinClaritin vs. FlonaseDymista vs. FlonaseFlonase vs. Advil-allergy-and-congestion-reliefFlonase vs. AllegraFlonase vs. AzelastineFlonase vs. Beconase-aqFlonase vs. BenadrylFlonase vs. Claritin-dFlonase vs. Dimetapp-cold-and-allergyHydromet vs. Benzonatate

Browse medications by letter

Show All

Browse prescription and over-the-counter medications from A to Z, compare drug prices, and start saving.