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Compare Capmist DM vs. Mucinex DM

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

Key takeaways

Capmist DM (dextromethorphan/guaifenesin/pseudoephedrine) and Mucinex DM (guaifenesin/dextromethorphan) are both used to relieve cough and chest congestion, but they belong to different medication classes. Capmist DM combines a cough suppressant, expectorant, and decongestant, while Mucinex DM includes only a cough suppressant and expectorant. Capmist DM is available as a tablet and is behind-the-counter in many states, whereas Mucinex DM is available over-the-counter in various forms, including tablets, liquids, and granules. Capmist DM is typically taken every 4 hours, while Mucinex DM is taken every 4 to 12 hours, depending on the form. Capmist DM may cause side effects like dizziness and restlessness and can interact with medications like monoamine oxidase inhibitors (MAOIs), increasing the risk of serotonin syndrome. Mucinex DM can sometimes cause dizziness and drowsiness, and it should not be taken with other medications containing similar ingredients to avoid overdose. Talk to your prescriber or pharmacist before taking either medication if you have other health conditions or take other medications.

  • Capmist dm
    Mucinex dm (guaifenesin / dextromethorphan)
  • Capmist dm
    Mucinex dm (guaifenesin / dextromethorphan)

  • Summary of Capmist DM vs. Mucinex DM

    Summary for Cough suppressant / Expectorant / Decongestant

    Capmist DM is a combination of three medications: dextromethorphan (a cough suppressant), guaifenesin (an expectorant), and pseudoephedrine (a decongestant). It's available behind the counter and is taken by adults and children to treat cough and congestion from allergies or the common cold. Capmist DM comes as a tablet that's taken by mouth, typically every 4 hours. The combination of medications (dextromethorphan, guaifenesin, pseudoephedrine) can also be found under other brand names, such as Poly-Vent DM. Possible side effects of this medication can include sleepiness, dizziness, and headache.

    Summary for Expectorant / Antitussive

    Mucinex DM (guaifenesin / dextromethorphan) is an over-the-counter medication that's used to relieve cough and loosen mucus. It has two active ingredients: guaifenesin (an expectorant that clears chest congestion) and dextromethorphan (a cough suppressant that relieves cough). The medication is available as tablets, dissolvable granules, and liquid that are taken by mouth, each with different dosages, directions, and age limits. Extended-release tablets are taken every 12 hours, while the other forms are usually taken every 4 hours. Most people have few to no side effects when used as directed, but it can sometimes cause stomach upset, dizziness, and drowsiness.

  • Indications of Capmist DM vs. Mucinex DM

    Indications for

    Short-term relief of symptoms due to allergies or the common cold:

    •Chest congestion
    •Sinus congestion and pressure
    •Stuffy nose
    •Cough
    Indications for
    •Short-term relief of coughs caused by minor throat or lung irritation (e.g., common cold)
    •Loosens and breaks up mucus in the airways (chest congestion)

  • Pros and Cons of Capmist DM vs. Mucinex DM

    Pros and Const for Cough suppressant / Expectorant / Decongestant
    Pros
    •Taken by mouth
    •More convenient to take because it's combination of three medications
    •Might be an option for children ages 6 years and older
    Cons
    •Might need to take multiple times a day
    •Can't adjust the dose of an individual medication in this combination
    •Pseudoephedrine not a good option for people with high blood pressure
    Pros and Const for Expectorant / Antitussive
    Pros
    •Available as a tablet, oral liquid, and dissolvable granules
    •Available over the counter without a prescription
    •Sugar-free options available, so okay to use for people with high blood sugar
    •Works within 30 minutes to help lessen cough
    Cons
    •Not meant to be used long-term
    •Might need to take multiple times a day to relieve symptoms
    •Many states require you to be over 18 to buy it because of risk of misuse
    •Can't cut or crush extended-release tablets

  • Common Side Effects of Capmist DM vs. Mucinex DM

    Common Side Effects for
    •Dizziness
    •Restlessness
    •Nausea
    Common Side Effects for
    •Side effects aren't common. See Other Side Effects.

  • Warnings of Capmist DM vs. Mucinex DM

    Common Side Effects for
    •Serotonin syndrome
    •Accidental overdose
    •Worsening of medical conditions
    Common Side Effects for
    •Risk of overdose and misuse
    •Interactions with certain medications for Parkinson's disease and depression
    •Caution use in people with phenylketonuria (PKU) - dissolvable granules only

  • Prices with our coupons for Capmist DM vs. Mucinex DM

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