---
product_id: 402019166
title: "Reliable-1 Laboratories Guaifenesin 400 mg Caplets Cough and Mucus Relief | Expectorant for Chest Congestion | 60 Caplets"
brand: "reliable-1 laboratories"
price: "€ 18.02"
currency: EUR
in_stock: true
reviews_count: 3
category: "Reliable 1 Laboratories"
url: https://www.desertcart.nl/products/402019166-reliable-1-laboratories-guaifenesin-400-mg-caplets-cough-and-mucus
store_origin: NL
region: Netherlands
---

# Dosage every 4 hours 400mg Guaifenesin per caplet OTC trusted brand with 100+ years expertise Reliable-1 Laboratories Guaifenesin 400 mg Caplets Cough and Mucus Relief | Expectorant for Chest Congestion | 60 Caplets

**Brand:** reliable-1 laboratories
**Price:** € 18.02
**Availability:** ✅ In Stock

## Summary

> 💨 Breathe Easy, Lead Boldly – Clear Chest, Clear Mind

## Quick Answers

- **What is this?** Reliable-1 Laboratories Guaifenesin 400 mg Caplets Cough and Mucus Relief | Expectorant for Chest Congestion | 60 Caplets by reliable-1 laboratories
- **How much does it cost?** € 18.02 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/402019166-reliable-1-laboratories-guaifenesin-400-mg-caplets-cough-and-mucus)

## Best For

- reliable-1 laboratories enthusiasts

## Why This Product

- Trusted reliable-1 laboratories brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Expertise:** Backed by a century of Reliable 1 Laboratories’ innovation
- • **Powerful 400mg Dose:** Maximize mucus relief with clinically effective strength
- • **Compact & Convenient:** 60 caplets in a travel-friendly package for on-the-go relief
- • **Fast-Acting Every 4 Hours:** Consistent chest congestion relief on your schedule
- • **Expectorant, Not Suppressant:** Clear thick mucus naturally without silencing your cough

## Overview

Reliable-1 Laboratories Guaifenesin 400 mg Caplets deliver effective expectorant relief by loosening chest and throat mucus, helping you clear congestion naturally. Each caplet contains 400mg of Guaifenesin, recommended every 4 hours for adults and children over 12. Trusted OTC formula from a brand with over 100 years of combined leadership experience, designed for professionals who demand reliable, fast-acting respiratory support.

## Description

Mucus relief expectorant.

Review: I take this product everyday to save my vision - I get this product every month Because I ophthalmologist recommended it. It must be working because he says my degeneration hasn't progressed.
Review: Works Well - I’m giving it a 4 because it is very chalky and leaves a residue in your mouth when you take it.

## Features

- GUAIFENESIN is an effective, over the counter expectorant, which helps loosen congestion and mucus in your chest and throat.
- CHEST CONGESTION Guaifenesin is used to relieve mucus and help clear chest congestion.
- EXPECTORANT CAPLETS Unlike cough suppressants, expectorants like Guaifenesin make it easier to cough up thick mucus.
- DIRECTIONS FOR USE Recommended dosage: 1 caplet every 4 hours, for adults and children over 12. 400mg Guaifenesin per caplet.
- RELIABLE 1 Laboratories is an Over the Counter (OTC) and Nutritional Supplement provider with a leadership team holding 100+ years of experience. Reliable 1 provides its customers and partners quality solutions and products with the highest level of service and integrity.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B08WR9N4W2 |
| Best Sellers Rank | #434,952 in Health & Household ( See Top 100 in Health & Household ) #1,097 in Cold & Flu Medicine |
| Customer Reviews | 4.6 4.6 out of 5 stars (13) |
| Date First Available  | October 29, 2021 |
| Manufacturer  | Reliable 1 Laboratories LLC |
| Package Dimensions  | 3.27 x 1.81 x 1.73 inches; 1.45 ounces |

## Product Details

- **Brand:** Reliable-1 Laboratories
- **Item Form:** Tablet
- **Number of Items:** 60
- **Product Benefits:** Cough Relief
- **Specific Uses For Product:** Cough

## Images

![Reliable-1 Laboratories Guaifenesin 400 mg Caplets Cough and Mucus Relief | Expectorant for Chest Congestion | 60 Caplets - Image 1](https://m.media-amazon.com/images/I/41kL5aI4eKL.jpg)
![Reliable-1 Laboratories Guaifenesin 400 mg Caplets Cough and Mucus Relief | Expectorant for Chest Congestion | 60 Caplets - Image 2](https://m.media-amazon.com/images/I/51+3FwxtH0L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ I take this product everyday to save my vision
*by S***S on August 4, 2025*

I get this product every month Because I ophthalmologist recommended it. It must be working because he says my degeneration hasn't progressed.

### ⭐⭐⭐⭐ Works Well
*by P***L on January 27, 2026*

I’m giving it a 4 because it is very chalky and leaves a residue in your mouth when you take it.

### ⭐⭐⭐⭐⭐ works for me
*by V***W on July 29, 2023*

No noticeable side effects. It works well in combination with a separate pill containing dextromethorphan HBR. The dextromethorphan by itself doesn't work for me when my cough is productive (i.e., produces stuff). It contains no ingredients I don't recognize or consider unhealthy.

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---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-13*