Guaifenasin-Dextromethorphan ER is a Antitussive-Expectorant class drug that is made by Ohm Labs. The typical cash price of Guaifenasin-Dextromethorphan ER is $15.39 per 1, 14 tablets extended release 12 hour box, but you can pay $16.14 for 1, 14 tablets extended release 12 hour box when you use a SingleCare coupon. Guaifenasin-Dextromethorphan ER is a generic drug; Mucinex Dm Maximum Strength is the brand-name form of Guaifenasin-Dextromethorphan ER.
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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: 05/01/2026
Guaifenasin-Dextromethorphan ER is a Antitussive-Expectorant class drug that is made by Ohm Labs. The typical cash price of Guaifenasin-Dextromethorphan ER is $15.39 per 1, 14 tablets extended release 12 hour box, but you can pay $16.14 for 1, 14 tablets extended release 12 hour box when you use a SingleCare coupon. Guaifenasin-Dextromethorphan ER is a generic drug; Mucinex Dm Maximum Strength is the brand-name form of Guaifenasin-Dextromethorphan ER.
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 Maximum Strength Retail Price | Dm-Guaifenesin Er Retail Price | Dm-Guaifenesin Er SingleCare Price |
|---|---|---|---|
| Walgreens | $31.78 | - | - |
| Kroger Pharmacy | $14.56 | $9.80 | $9.66 |
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.
Guaifenasin-Dextromethorphan ER is a Antitussive-Expectorant class drug that is made by Ohm Labs. The typical cash price of Guaifenasin-Dextromethorphan ER is $15.39 per 1, 14 tablets extended release 12 hour box, but you can pay $16.14 for 1, 14 tablets extended release 12 hour box when you use a SingleCare coupon. Guaifenasin-Dextromethorphan ER is a generic drug; Mucinex Dm Maximum Strength is the brand-name form of Guaifenasin-Dextromethorphan ER.
Guaifenasin-Dextromethorphan ER costs $16.14 for 1, 14 tablets extended release 12 hour box with a free Guaifenasin-Dextromethorphan ER coupon from SingleCare. You could pay less depending on your prescription information. Use the dropdown menu above to update your prescription details (i.e., generic/brand, quantity, dosage, form) to see the most accurate prices of Guaifenasin-Dextromethorphan ER with SingleCare near you.
The typical out-of-pocket cost of Guaifenasin-Dextromethorphan ER without health insurance is $15.39 per 1, 14 tablets extended release 12 hour box though you can save using a SingleCare Guaifenasin-Dextromethorphan ER coupon to pay $16.14 for 1, 14 tablets extended release 12 hour box of Guaifenasin-Dextromethorphan ER. People without insurance coverage can still use SingleCare for free Guaifenasin-Dextromethorphan ER savings. By getting Guaifenasin-Dextromethorphan ER, you generally reduce your price on your medication compared with using Mucinex Dm Maximum Strength - the branded form of Guaifenasin-Dextromethorphan ER, which typically costs much more than Guaifenasin-Dextromethorphan ER.
Each specific insurance program is unique and may or may not cover Guaifenasin-Dextromethorphan ER. The cost of Guaifenasin-Dextromethorphan ER with insurance coverage varies depending on your plan - reach out to your insurance provider for particular formulary coverage and copay specifics. If your insurance plan does not cover Guaifenasin-Dextromethorphan ER, you can use SingleCare to get a better rate on Guaifenasin-Dextromethorphan ER at your pharmacy. In addition, you can also use SingleCare cards if you have Medicare or Medicaid. When Medicare or Medicaid doesn’t completely cover your Guaifenasin-Dextromethorphan ER prescription, you can use SingleCare instead. Use the SingleCare website or app to compare the lowest price of Guaifenasin-Dextromethorphan ER with SingleCare versus your Guaifenasin-Dextromethorphan ER copay with insurance or Medicare.
SingleCare is accepted at most national pharmacies and grocery stores, i.e., Walgreens, Kroger, Walmart, CVS, Safeway, and more. Simply text, email, print, or save your free Guaifenasin-Dextromethorphan ER coupon to your mobile wallet and show your pharmacist when you pick up your prescription.
Guaifenasin-Dextromethorphan ER is a generic form of Mucinex Dm Maximum Strength and is significantly cheaper than Mucinex Dm Maximum Strength. The SingleCare cost of Guaifenasin-Dextromethorphan ER is $16.14 per 1, 14 tablets extended release 12 hour box, which typically is significantly less expensive than the average price of Mucinex Dm Maximum Strength but uses the same ingredients.
SingleCare is accepted at most national pharmacies and grocers, including the following:
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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.
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© 2026 SingleCare Administrators. All rights reserved