Mucinex is an over-the-counter drug that relieves chest congestion due to cold, flu, hay, fever, or allergies. The active ingredient in Mucinex, guaifenesin, is an expectorant that loosens mucus in the bronchial passageways so that they can be more easily cleared out. Mucinex is also the brand-name of a family of cold, flu, and allergy symptom relief products that combine guaifenesin with other cold and allergy relief medications. Currently, Mucinex costs $16.67 for 20, 600mg tablet extended release 12 hours and is available at most major retailers and online stores. SingleCare discounts can be used on over-the-counter products, like Mucinex, when prescribed by a physician. With a prescription, a SingleCare Mucinex coupon reduces the price of Mucinex to $14.09 for 20, 600mg tablet extended release 12 hours at major retailers, pharmacies, and supermarkets.
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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.
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Prices updated: 12/20/2025
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Mucinex is an over-the-counter drug that relieves chest congestion due to cold, flu, hay, fever, or allergies. The active ingredient in Mucinex, guaifenesin, is an expectorant that loosens mucus in the bronchial passageways so that they can be more easily cleared out. Mucinex is also the brand-name of a family of cold, flu, and allergy symptom relief products that combine guaifenesin with other cold and allergy relief medications. Currently, Mucinex costs $16.67 for 20, 600mg tablet extended release 12 hours and is available at most major retailers and online stores. SingleCare discounts can be used on over-the-counter products, like Mucinex, when prescribed by a physician. With a prescription, a SingleCare Mucinex coupon reduces the price of Mucinex to $14.09 for 20, 600mg tablet extended release 12 hours at major retailers, pharmacies, and supermarkets.
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 Retail Price | Guaifenesin Er Retail Price | Guaifenesin Er SingleCare Price |
|---|---|---|---|
| Walmart | $12.80 | $4.00 | $4.00 |
| Walgreens | $16.64 | $9.79 | $4.95 |
| Kroger Pharmacy | $12.40 | $16.09 | $11.40 |
| Albertsons Pharmacy | - | $13.67 | $11.40 |
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 is an over-the-counter drug that relieves chest congestion due to cold, flu, hay, fever, or allergies. The active ingredient in Mucinex, guaifenesin, is an expectorant that loosens mucus in the bronchial passageways so that they can be more easily cleared out. Mucinex is also the brand-name of a family of cold, flu, and allergy symptom relief products that combine guaifenesin with other cold and allergy relief medications. Currently, Mucinex costs $16.67 for 20, 600mg tablet extended release 12 hours and is available at most major retailers and online stores. SingleCare discounts can be used on over-the-counter products, like Mucinex, when prescribed by a physician. With a prescription, a SingleCare Mucinex coupon reduces the price of Mucinex to $14.09 for 20, 600mg tablet extended release 12 hours at major retailers, pharmacies, and supermarkets.
Mucinex is a brand-name over-the-counter medication that temporarily relieves chest congestion due to cold, allergies, or flu. The active ingredient is guaifenesin, a widely-used expectorant that loosens mucus in the bronchial airways and the throat making it easier to clear these areas through coughing.
Mucinex is also the brand-name of an entire family of cold, flu, and allergy symptom-relief products. While all Mucinex products contain guaifenesin, many include other medications such as cough suppressants, nasal decongestants, and analgesics (acetaminophen).
Mucinex is taken as a tablet once every twelve hours. For Mucinex combination products, dosage, use, and format will vary.
The most common side effects of Mucinex include but are not limited to dizziness, drowsiness, headache, nausea, and vomiting.
Allergic reactions are rare but discontinue Mucinex if you notice any sign of an allergic reaction such as rash, hives, facial swelling, or trouble breathing.
This is not a complete list of side effects that may occur. Consult with your physician about any concerns you may have with side effects.
Mucinex is an over-the-counter brand-name medication. Generic Mucinex is available as Mucus Relief, Mucus, or Guaifenesin under well-known brand-names such as CVS, Up & Up, Equate, and Walgreens.
The price for Mucinex averages around $16.67 for 20, 600mg tablet extended release 12 hours, but this price may vary by store. With a SingleCare Mucinex discount card, a prescription for 20, 600mg tablet extended release 12 hours of Mucinex costs $14.09. For all your prescription needs, a SingleCare savings card can save you as much as 80% on your purchases.
Mucinex is an over-the-counter chest decongestant. Therefore, you will not find Mucinex covered by insurance plans as you would a prescription drug with a copay. You can use a free Mucinex coupon from SingleCare to save money on your prescription. Mucinex's price with a SingleCare discount card is only $14.09 for 20, 600mg tablet extended release 12 hours.
Because Mucinex is a low-priced chest decongestant, no Medicare prescription drug plan covers purchases of Mucinex. For Medicare patients with a prescription for Mucinex, you’ll pay as little as $14.09 for 20, 600mg tablet extended release 12 hours of Mucinex with a SingleCare savings card at participating pharmacies.
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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© 2025 SingleCare Administrators. All rights reserved