---
product_id: 6543422
title: "Fast-Max DM Max Cough & Chest Congestion Medicine, 6 FL OZ | Dextromethorphan HBr Cough Suppressant, Guaifenesin Expectorant, Extended-Release Formula, For Ages 12+"
brand: "mucinex"
price: "¥3689"
currency: JPY
in_stock: true
category: "Mucinex"
url: https://www.desertcart.jp/products/6543422-fast-max-dm-max-cough-and-chest-congestion-medicine-6
store_origin: JP
region: Japan
---

# 4-hour dosing relief Fast Acting in 30 mins Max Strength formula Fast-Max DM Max Cough & Chest Congestion Medicine, 6 FL OZ | Dextromethorphan HBr Cough Suppressant, Guaifenesin Expectorant, Extended-Release Formula, For Ages 12+

**Brand:** mucinex
**Price:** ¥3689
**Availability:** ✅ In Stock

## Summary

> 💥 Max out your cold defense with Mucinex Fast-Max DM Max!

## Quick Answers

- **What is this?** Fast-Max DM Max Cough & Chest Congestion Medicine, 6 FL OZ | Dextromethorphan HBr Cough Suppressant, Guaifenesin Expectorant, Extended-Release Formula, For Ages 12+ by mucinex
- **How much does it cost?** ¥3689 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/6543422-fast-max-dm-max-cough-and-chest-congestion-medicine-6)

## Best For

- mucinex enthusiasts

## Why This Product

- Trusted mucinex brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted & Rated:** Highly rated by thousands with a 4.7-star average, proving its effectiveness and trustworthiness.
- • **Rapid Relief Power:** Targets cough and chest congestion with maximum strength ingredients for fast symptom control.
- • **Dual-Action Formula:** Combines a potent cough suppressant with a mucus thinner to break up congestion effectively.
- • **Refreshing Apple Flavor:** Enjoy a pleasant taste while you fight off cold symptoms—no more bitter medicine moments.
- • **Consistent 4-Hour Protection:** Keeps you moving through your day with reliable, scheduled dosing.

## Overview

Mucinex Fast-Max DM Max is a maximum strength liquid medicine designed for adults to relieve cough and chest congestion. Featuring 20 mg Dextromethorphan HBr and 400 mg Guaifenesin per dose, it acts fast within 30 minutes and provides up to 4 hours of symptom relief. With a pleasant apple flavor and a trusted 4.7-star rating, it’s your go-to solution for multi-symptom cold relief.

## Description

A cold never takes it easy on you. So why deal with your next cold with kid gloves? Let Maximum Strength Mucinex Fast-Max DM Max go to battle with that nasty cough and chest congestion. Maximum Strength Mucinex Fast-Max DM Max combines maximum strength mucus busting power with a maximum strength cough suppressant to calm that annoying cough and break up chest congestion.

## Features

- Fast Acting, Max Strength, Multi-symptom Relief
- Controls Cough
- Thins & loosens mucus
- Relieves Chest Congestion
- 4 hour dosing, Try Mucinex DM Caplet for 12 hour Relief

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0057UUGSO |
| ASIN  | B0057UUGSO |
| Active Ingredients | Dextromethorphan HBr (20 mg), Guaifenesin (400 mg). |
| Additional Features | Maximum Strength |
| Age Range Description | Adult |
| Best Sellers Rank | #5,515 in Health & Household ( See Top 100 in Health & Household ) #30 in Cold & Flu Medicine #1,159 in Sales & Deals |
| Brand Name | Mucinex |
| Container Type | Bottle |
| Customer Reviews | 4.7 4.7 out of 5 stars (7,362) |
| Date First Available  | June 23, 2011 |
| Dosage Form | Liquid |
| Flavor | Apple |
| Global Trade Identification Number | 00363824018669 |
| Item Dimensions | 1.44 x 2.51 x 5.77 inches |
| Item Form | Liquid |
| Item Weight | 8.16 ounces |
| Item model number  | 6382401866 |
| Manufacturer | Reckitt Benckiser |
| Manufacturer  | Reckitt Benckiser |
| Manufacturer Part Number | 6382401866 |
| Model Name | Mucinex Fast Max Strength Congestion Liquid |
| Model Number | 6382401866 |
| Net Content Count | 1 bottle |
| Number of Items | 1 |
| Package Type Name | Bottle |
| Product Benefits | Cough Relief |
| Product Dimensions  | 1.44 x 2.51 x 5.77 inches; 8.16 ounces |
| Specific Uses For Product | Chest Congestion, Cough |
| Target Audience | Unisex-Adults |
| Target Use Body Part | Whole Body |
| UPC | 363824018669 |
| Unit Count | 6 Fluid Ounces |

## Product Details

- **Brand:** Mucinex
- **Item Weight:** 8.16 ounces
- **Item dimensions L x W x H:** 1.44 x 2.51 x 5.77 inches
- **Product Benefits:** Cough Relief
- **Specific Uses For Product:** Chest Congestion, Cough

## Images

![Fast-Max DM Max Cough & Chest Congestion Medicine, 6 FL OZ | Dextromethorphan HBr Cough Suppressant, Guaifenesin Expectorant, Extended-Release Formula, For Ages 12+ - Image 1](https://m.media-amazon.com/images/I/71TI0l6v6pL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Is this non-drowsy?**
A: Hi, while there are no labeled side-effects for dextromethorphan some consumers may experience drowsiness.  We suggest speaking with your healthcare provider if you have any additional questions regarding side-effects.

**Q: What is the sugar content?**
A: Thank you for your interest in our Mucinex® Fast-Max® DM Max and Mucinex® Nightshift Cold & Flu Liquid Combo Pack. Both medicines are sweetened with sucralose and are therefore sugar free.

**Q: What flavor is this?  Is it any better than any other cough syrup?**
A: Cherry. Yes

**Q: Where is this made**
A: Thank you for your interest in our Mucinex® Fast-Max® DM Max and Mucinex® Nightshift Cold & Flu combo pack! These products are made in England.

## Frequently Bought Together

- Mucinex DM Max Liquid Cough & Cold Medicine for Adults, Cold and Flu Medicine for Excess Mucus Relief, Guaifenesin & Dextromethorphan Expectorant & Decongestant for Adults, Dr Recommended, 6.0 Fl Oz
- Mucinex Instasoothe Sugar Free Cough Drops, Cough Medicine for Adults with Dextromethorphan HBr, Non Menthol Cough Drops, Cough Suppressant Lozenges, Mixed Berry Medicated Cough Drops, 40ct
- Mucinex Fast-Max Severe Congestion & Cough Medicine, Maximum Strength Symptom Relief, Over-The-Counter Medication, Cold Medicine, Cough Suppressant, Expectorant, Nasal Decongestant, FSA/HSA, 6 FL OZ

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**Shop now:** [https://www.desertcart.jp/products/6543422-fast-max-dm-max-cough-and-chest-congestion-medicine-6](https://www.desertcart.jp/products/6543422-fast-max-dm-max-cough-and-chest-congestion-medicine-6)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-28*