No one likes to be sick, but Mucinex 12-Hour Maximum Strength Chest Congestion Expectorant Tablets make every sick day a little easier. Mucus is a master of mayhem. It crowds your nose, throat, and makes you miserable.

Does Mucinex Start Working Quickly?

The best chest congestion medicine provides quick, long-lasting relief. When it comes to chest congestion medicine, Mucinex provides great relief. And that relief is just one dose away. Mucinex expectorant tablets get to work fast and last for 12 hours. Mucinex 12-Hour Chest Congestion Expectorant Tablets give you the relief you need whenever the untimely cold comes your way.

What Does Mucinex Relieve?

Mucinex 12-Hour Chest Congestion Expectorant Tablets relieve chest congestion that's caused by excessive mucus. Mucinex works by thinning and loosening mucus. And with extended-release, Bi-Layer™ tablets, you'll have effective relief for up to 12 hours. Chest congestion occurs when the mucus membranes in your airways are pushed into overdrive. Whether it's the common cold or irritants like dust, your mucus membrane becomes inflamed and causes excess mucus buildup in your airways. The buildup of mucus serves as a way to rid your body of your illness or the irritant you breathed in. Mucinex helps dissolve the mucus buildup so you can breathe normally again.

Active Ingredient

Contains Guaifenesin, which is an expectorant that relieves chest congestion and thins & loosens mucus, making coughs more productive. Guaifenesin (1200 mg) is an expectorant that helps reduce chest congestion caused by colds, infections, or allergies. It works by thinning the mucus in the air passages and makes it easier to cough up.

Stock Up Now

Stock up on Mucinex now. Future you will be very glad you did. Conveniently order your medicine online and have it shipped to your doorstep. Or pick up the Mucinex during your next trip to your local Sam's Club.

Specifications

• Use Instructions: do not crush, chew, or break tablet . Take with a full glass of water. 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.
• Pack Size: 56 count tablets
• Shelf Life: N/A
• FSA & HSA Eligible: Yes
• Allergen and Warnings Information: Do not exceed 2 tablets in 24 hours. Children under 12 years of age: Do not use. Do not crush, chew, or break tablet.
• Ingredients: Active Ingredients: Guaifenesin (1200 mg). Inactive ingredients: carbomer homopolymer type b; fd&c blue no. 1 aluminum lake; hypromellose, usp; magnesium stearate, nf; microcrystalline cellulose, nf; sodium starch glycolate, nf'

📦 Personal Customs Clearance Code Notice

For products shipped from overseas, entering a Personal Customs Clearance Code is required.

To ensure smooth customs clearance and fast delivery, please make sure the following information matches exactly:

• Personal Customs Clearance Code
  
• Recipient’s full name
  
• Contact phone number
  

If any of the above information does not match, customs clearance may be delayed or the shipment may be returned.

You can issue or check your Personal Customs Clearance Code at the link below:

https://unipass.customs.go.kr/csp/persIndex.do

Thank you for your cooperation to ensure a safe and timely delivery.

🔄 Product & Packaging Update

Product packaging may change without prior notice.

Please be assured that only the packaging may differ; the ingredients and product quality remain the same.

⚕️ Health Disclaimer

This product is not intended to diagnose, treat, cure, or prevent any disease.

Please read the label and directions carefully before use, and consult a healthcare professional if you have any concerns.

🔁 Exchange & Refund Policy

1️⃣ Incorrect Shipment or Damaged Items

If an item was shipped incorrectly or damaged due to a verified mistake by KYPICK,

we will offer a full refund or an exchange for the same item after reviewing photo evidence.

Please note that we may request additional information during the review process.

2️⃣ Change of Mind

For exchanges or refunds due to a change of mind, return shipment to the U.S. is required.

In this case, round-trip international shipping costs are the customer’s responsibility,

and fees may vary depending on the item type, weight, and destination.

❌ Order Cancellation Policy

⏰ Cancellation Window

Orders may be canceled only if requested via 1:1 inquiry before 5:00 PM (KST) on the same day the order is placed.

Please note that it may take some time for the cancellation to be reflected in the system.

🚫 Cancellation Not Available

Order cancellation is not possible if:

• 
  The order status has changed to “Preparing for Shipment” or “Shipped”
  
  → Item quantity changes and cancellations are not allowed
  

Requests made on weekends or public holidays