Mucinex DM is an over-the-counter expectorant medicine used to treat chest congestion and cough caused by allergies and the common cold. It works by suppressing the cough center portion of your brain and nervous system. It also thins out mucus or phlegm which makes it easier to cough. The average retail price for Mucinex DM is around $36.95 for 1, 20 tablets extended release 12 hour box. A SingleCare coupon for Mucinex DM could cut costs to just $16.01 for 1, 20 tablets extended release 12 hour box when you use our free coupons at select pharmacies. CVS Pharmacy, Target, Longs Drugs, Walmart, Kroger, Fry's, and Harris Teeter are just a few pharmacies where you can use a SingleCare Mucinex DM coupon.
Edit your dosage
1 box, 6 tablets extended release 12 hourEdit
You have 0.00 in available bonus savings. Bonus savings will be automatically applied to your next eligible prescription fill.
Show this free card to your pharmacist.
SingleCare’s prescription prices are based on multiple sources. The prices we publish are our best estimate, but we cannot guarantee that the price we display will exactly match the price you receive at the pharmacy. For an exact price, please contact your pharmacy and provide the BIN/GRP/PCN numbers shown on your SingleCare card.
Any SingleCare bonus savings, including the $3 signup bonus, may only be used once.
Prices updated: 06/22/2026
Mucinex DM is an over-the-counter expectorant medicine used to treat chest congestion and cough caused by allergies and the common cold. It works by suppressing the cough center portion of your brain and nervous system. It also thins out mucus or phlegm which makes it easier to cough. The average retail price for Mucinex DM is around $36.95 for 1, 20 tablets extended release 12 hour box. A SingleCare coupon for Mucinex DM could cut costs to just $16.01 for 1, 20 tablets extended release 12 hour box when you use our free coupons at select pharmacies. CVS Pharmacy, Target, Longs Drugs, Walmart, Kroger, Fry's, and Harris Teeter are just a few pharmacies where you can use a SingleCare Mucinex DM coupon.
Our price history metrics are calculated from aggregate prescription data that we receive from all participating pharmacies. This chart updates daily to show new price fluctuations. If a data point is missing from the chart, it is because we do not have enough data to produce a reliable figure.
| Pharmacy | Mucinex Dm Retail Price | Mucinex Dm SingleCare Price |
|---|---|---|
| Walmart | $15.00 | $15.00 |
| Walgreens | $22.00 | $22.00 |
| Kroger Pharmacy | $15.40 | $15.20 |
| Albertsons Pharmacy | - | - |
These prices are based on the last month of SingleCare prescription fill data by major pharmacy. This table updates daily to show the most accurate typical prices by pharmacies. If a data point is missing from the table, it is because we do not have enough data to produce a reliable figure.
Mucinex DM is an over-the-counter expectorant medicine used to treat chest congestion and cough caused by allergies and the common cold. It works by suppressing the cough center portion of your brain and nervous system. It also thins out mucus or phlegm which makes it easier to cough. The average retail price for Mucinex DM is around $36.95 for 1, 20 tablets extended release 12 hour box. A SingleCare coupon for Mucinex DM could cut costs to just $16.01 for 1, 20 tablets extended release 12 hour box when you use our free coupons at select pharmacies. CVS Pharmacy, Target, Longs Drugs, Walmart, Kroger, Fry's, and Harris Teeter are just a few pharmacies where you can use a SingleCare Mucinex DM coupon.
The average cost of Mucinex DM is around $36.95 or even more if you do not have insurance coverage. Using a SingleCare Mucinex DM coupon or discount card can help you to save on your prescription medication. Pay only $16.01 for 1, 20 tablets extended release 12 hour box when you use your discount card at neighborhood pharmacies.
Over-the-counter (OTC) drugs like Mucinex DM are usually not covered by most insurance plans. In some cases, your doctor may write a prescription for Mucinex DM, but otherwise, pharmacy coupons are probably the best option when buying Mucinex DM. You can pay just $16.01 for 1, 20 tablets extended release 12 hour box when you use our SingleCare savings card for Mucinex DM.
Generally, Medicare drug plans only cover prescription drugs and won't pay for over-the-counter drugs, like cold and flu products, allergy medicine, or Mucinex DM. You can still save when you purchase Mucinex DM by using a SingleCare discount card. Redeem SingleCare savings and pay only $16.01 for 1, 20 tablets extended release 12 hour box of Mucinex DM when you use a coupon above.
Mucinex DM is a brand-name over-the-counter medicine. There is no generic alternative available but other brand names could be comparable to Mucinex DM. Ask a healthcare professional which OTC product is best for your symptoms.
Mucinex DM is a brand-name expectorant and cough suppressant medicine used to treat chest congestion and cough caused by allergies and the common cold. This medication is a combination of dextromethorphan and guaifenesin. Dextromethorphan works by suppressing the cough center of the brain and guaifenesin thins out mucus or phlegm which makes it easier to cough.
Mucinex DM should be used exactly as directed on the labels or as directed by your doctor. Cough or cold medicines should only be used as a short-term treatment until all your symptoms are gone. Mucinex DM comes in many forms including a cough tablet and syrup. If you are using the liquid form of this medicine than you may need to shake it thoroughly before you measure your dose. The extended-release tablet version should be swallowed whole. Do not crush, chew, or break it.
When giving this medication to a child, always ensure that you follow the directions provided on the medication label. This medicine should not be used to make a child sleepy. Misuse of this medicine in children can lead to serious medical issues or even death. Contact your pharmacist or doctor if you are uncertain about the dose that should be used.
Side effects resulting from the use of Mucinex DM are usually rare, however, some patients using this drug may experience negative effects.
Contact your doctor if you notice signs of rashes, hives, itching, peeling skin, trouble breathing, swelling of the mouth, or hoarseness. These may be indications of a serious allergic reaction.
Other effects not listed here may also occur while you're taking this medication. Talk to your healthcare provider before using this medicine to ensure that you're aware of all the benefits and risks involved.
SingleCare is accepted at most national pharmacies and grocers, including the following:
Health education, drug info, wellness & more
SingleCare is a prescription discount service that offers free coupons on thousands of prescription drugs. It can be used whether you have insurance, Medicare, Medicaid, or none of the above, but it cannot be combined with insurance.
SingleCare provides transparent drug pricing, so you can compare discounts at pharmacies near you. Browse singlecare.com to find drug discounts, helpful information about your prescription, and resources to help you make informed health decisions.
Prescription savings vary by prescription and by pharmacy, and may reach up to 80% off cash price. This is a medical discount plan. This is NOT insurance. This program offers you the opportunity to locate providers of various types of medical services who will offer their services to you at discounted rates. The range of discounts for medical or ancillary services provided under the plan will vary depending on the type of provider and service received. You are fully responsible for paying for all health care services but will be entitled to receive a discount from those health care providers in accordance with the specific pre-negotiated discounted fee schedule. This program does not guarantee the quality of the services or procedures offered by the providers. Except for prescription drugs which you will pay directly to the pharmacy at the time of purchase, all other services received through a program provider will be charged to the credit card on file in your member account. The charge will include an administrative fee for use of the program. Towers Administrators LLC is the licensed discount medical plan organization with its administrative office located at 4510 Cox Road, Suite 111, Glen Allen, VA 23060. SingleCare Services, LLC is the marketer of the discount medical plan organization including its website, singlecare.com, with its corporate office located at 99 High Street, Suite 2800, Boston, MA 02110. For additional information, including an up-to-date list of providers, or assistance with any issue related to program membership, please contact member support any time at www.singlecare.com, or by calling toll-free 844-234-3057, 24 hours, 7 days a week (except major holidays). Pharmacy names, logos, brands, and other trademarks are the property of their respective owners.
Blog articles are not medical advice. They are intended for general informational purposes and are not meant to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. If you think you may have a medical emergency, immediately call your physician or dial 911.
© 2026 SingleCare Administrators. All rights reserved
© 2026 SingleCare Administrators. All rights reserved