Mucinex Chest Congestion Expectorant | Immediate and Extended Release | Relieves Chest Congestion | Thins and Loosens Mucus for 12 Hours | 20 Extended-Release Bi-Layer Tablets; Exp 09/2026

When mucus builds up in your chest, congestion can get in the way of your day. Mucinex extended-release bi-layer tablets fight bothersome chest congestion for 12 hours so you can focus on your life and forget about congestion.

Fast-Acting, Long-Lasting Relief

Mucinex extended-release tablets break up the mucus that causes chest congestion, providing you with fast-acting and long-lasting relief. With 12 hours of relief from chest congestion, you can make it through a workday without congestion getting in your way.

Get 12 Hours of Relief

Only Mucinex has an extended release bi-layer tablet to deliver congestion relief. The first layer is absorbed quickly by your body for fast-acting relief. The other layer dissolves slowly to continue relieving your chest congestion for 12 hours.

Mucinex: #1 with Doctors, Pharmacists, and Consumers

You're too busy with family, home, and work to let sickness slow you down. You need a brand you can trust to get the job done. That's why there's Mucinex. Mucinex is the #1 doctor recommended, #1 pharmacist recommended and #1 most popular OTC expectorant brand. Mucinex products all have the dependable, mucus-busting power to show Mr. Mucus the way out of your system so you can keep up with life.

What's in the Box

One box of Mucinex extended-release bi-layer tablets (20 tablets per box).

Mucinex

Relieves these Symptoms:

• Relieves chest congestion
• Thins and breaks up mucus to make coughs more productive

• EXCESS MUCUS RELIEF: Mucinex 12hr extended-release tablets pack a powerful punch with 600 mg guaifenesin expectorant, providing you with long-lasting chest congestion relief
• AIDS EXCESS MUCUS REMOVAL: Mucinex SE lasts up to 12 hours, provides chest congestion relief and makes coughs more productive
• EXPECTORANTS FOR ADULTS: Mucinex helps clear lungs by thinning & loosening mucus; Say goodbye to excess mucus, say hello to chest congestion relief
• EXTENDED RELEASE GUAIFENESIN: Experience long-lasting excess mucus relief with Mucinex's 12hr extended-release 600mg guaifenesin tablets; our original bi-layer tablets have both immediate & extended release
• TRUSTED BRAND: Mucinex is the #1 Cough & Cold Brand Doctor's Trust and is also the #1 Pharmacist Recommended OTC Expectorant; Get the brand that doctors trust and recommend
• COLD AND FLU MEDICINE FOR ADULTS: For powerful cough, cold, and flu multi-symptom relief, check out our range of Mucinex Fast-Max cold and flu medicines; Beat cold and flu symptoms with confidence
• QUALITY YOU CAN TRUST: Mucinex uses carbomer that is manufactured without the use of benzene

Directions

Do not crush, chew, or break tablet. Take with a full glass of water. This product can be administered without regard for the timing of meals.

• Adults and Children 12 Years of Age and Over: 1 tablet every 12 hours. Do not exceed 2 tablets in 24 hours.
• Children Under 12 Years of Age: Do not use.