---
title: "guaifenesin 600 mg extended release tablets — Niche Verdict: Skip it (47/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/health-household/guaifenesin-600-mg-extended-release-tablets"
last_updated: "2026-07-14T05:21:57.077Z"
locale: en
meta:
  description: "soft demand (-19.7% this quarter) — guaifenesin 600 mg extended release tablets doesn't clear our bar today."
  "og:description": "soft demand (-19.7% this quarter) — guaifenesin 600 mg extended release tablets doesn't clear our bar today."
  "og:title": "guaifenesin 600 mg extended release tablets — Niche Verdict: Skip it (47/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **guaifenesin 600 mg extended release tablets**

**Skip it**

Soft demand (-19.7% this quarter) — this niche doesn't clear our bar today.

Market size 33Growth 15Conversion 97Competition 42Returns 100Price range 67Avg price 77Brand share 32Review moat 31Quality gap 22

**Returns**

**Incredible****0.0%**

return rate — above 6% kills the launch gate

**Conversion**

**Incredible****15.0%**

search→purchase rate — share of searches ending in a sale

**Avg price**

**Great****$15.75**

avg listing price — sweet spot $15–$100

**Price range**

**Good****$5.87–$33.52**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Competition**

**Okay****60%**

top-5 click share — leaders hold, buyers still browse

**Market size**

**Okay****$155K**

$155K/yr · 65K searches

**Brand share**

**Okay****86%**

top-5 brand share — brands hold most of the demand

**Review moat**

**Okay****3,405.52**

avg incumbent reviews — the moat a new listing must climb

**Quality gap**

**Bad****4.7★**

avg incumbent rating — lower means beatable quality

**Growth**

**Bad****-19.7%**

90-day search growth — must beat 0% to launch

## **Competition**

The top 5 products take 60% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**12 **▼falling

**Sellers**

**63**

**Top-5 brand share**

**86%**

**Open market**

**10%**

- HealthA2Z31% - Amazon Basic Care27% - WELMATE12% - Curist9% - guardian7% - GenCare4% - Open — no brand owns it (6 brands, 10%)

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%5%$8K10%$15K15%$23K20%$31K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 21 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Amazon Basic Care Guaifenesin Extended-Release Tablets 600 mg 12 Hour Expectorant for Chest Congestion and Mucus Relief 20 Count](https://m.media-amazon.com/images/I/414hj09dQFL.jpg)**Amazon Basic Care Guaifenesin Extended-Release Tablets 600 mg 12 Hour Expectorant for Chest Congestion and Mucus Relief 20 Count**Amazon Basic Care**$8.36**4.6★4,555 rev](https://www.amazon.com/dp/B08ZDVBRM8) [2![HealthA2Z Mucus Relief Guaifenesin 600 mg 12 Hour Relief Dye Free No Benzene Expectorant Relieves Chest Congestion Thins and Loosens Mucus Extended Release (300 Counts)](https://m.media-amazon.com/images/I/41OGuKSGOzL.jpg)**HealthA2Z Mucus Relief Guaifenesin 600 mg 12 Hour Relief Dye Free No Benzene Expectorant Relieves Chest Congestion Thins and Loosens Mucus Extended Release (300 Counts)**HealthA2Z**$25.85**4.7★943 rev](https://www.amazon.com/dp/B0DTLJHLNM) [3![WELMATE Mucus Relief Guaifenesin 600mg Expectorant 200 Ct - Chest Congestion Relief Cough and Cold - Thins and Loosens Mucus - Immediate & Extended 12 Hour Support - Extended-Release Bi-Layer](https://m.media-amazon.com/images/I/41HhXH5MB0L.jpg)**WELMATE Mucus Relief Guaifenesin 600mg Expectorant 200 Ct - Chest Congestion Relief Cough and Cold - Thins and Loosens Mucus - Immediate & Extended 12 Hour Support - Extended-Release Bi-Layer**WELMATE**$27.53**4.7★1,234 rev](https://www.amazon.com/dp/B09XP4LGL1) [4![Curist Guaifenesin 600 mg Extended Release Tablets (300 Dye-Free Tablets) - Expectorant Mucus Relief Generic Guaifenesin 600 mg (Bulk Pack)](https://m.media-amazon.com/images/I/41HzPz8Dq1L.jpg)**Curist Guaifenesin 600 mg Extended Release Tablets (300 Dye-Free Tablets) - Expectorant Mucus Relief Generic Guaifenesin 600 mg (Bulk Pack)**Curist**$30.24**4.8★980 rev](https://www.amazon.com/dp/B0BMM1NS5R) [5![HealthA2Z Mucus Relief | Guaifenesin 600 mg | 12 Hour | No Benzene | Expectorant | Relieves Chest Congestion | Thins and Loosens Mucus | Extended Release (75 Counts)](https://m.media-amazon.com/images/I/41YvNvR5goL.jpg)**HealthA2Z Mucus Relief | Guaifenesin 600 mg | 12 Hour | No Benzene | Expectorant | Relieves Chest Congestion | Thins and Loosens Mucus | Extended Release (75 Counts)**HealthA2Z**$9.89**4.7★943 rev](https://www.amazon.com/dp/B0D3242QK3)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![NUVICARE Expectorant Mucus Relief 600 mg 12 Hour Extended Release Guaifenesin 600 mg Tablets Clear Throat Phlegm and Chest Congestion Relief for Adults Compare to MucusTablets (40 Count)](https://m.media-amazon.com/images/I/51YBXgEXh9L.jpg)**NUVICARE Expectorant Mucus Relief 600 mg 12 Hour Extended Release Guaifenesin 600 mg Tablets Clear Throat Phlegm and Chest Congestion Relief for Adults Compare to MucusTablets (40 Count)**NUVICARE**$7.55**76 rev11mo ago](https://www.amazon.com/dp/B0FK437PDG) [![Mucus and Chest Congestion Relief Guaifenesin Extended-Release Tablets 600 mg 12 Hour Expectorant](https://m.media-amazon.com/images/I/417Qhep9TiL.jpg)**Mucus and Chest Congestion Relief Guaifenesin Extended-Release Tablets 600 mg 12 Hour Expectorant**GoodSense**$5.87**34 rev12mo ago](https://www.amazon.com/dp/B0FJZV56W9) [![HealthA2Z Mucus Relief Guaifenesin 600 mg 12 Hour Relief Dye Free No Benzene Expectorant Relieves Chest Congestion Thins and Loosens Mucus Extended Release (300 Counts)](https://m.media-amazon.com/images/I/41OGuKSGOzL.jpg)**HealthA2Z Mucus Relief Guaifenesin 600 mg 12 Hour Relief Dye Free No Benzene Expectorant Relieves Chest Congestion Thins and Loosens Mucus Extended Release (300 Counts)**HealthA2Z**$25.85**943 rev1y ago](https://www.amazon.com/dp/B0DTLJHLNM) [![WELMATE - Guaifenesin 600mg (70 Tablets) - Mucus Relief - Expectorant Thins Mucus - Cough & Cold - 12 Hr Support - Fast Acting - Extended-Release Bi-Layer Tablets - Over-the-Counter Medication](https://m.media-amazon.com/images/I/4171vaBejwL.jpg)**WELMATE - Guaifenesin 600mg (70 Tablets) - Mucus Relief - Expectorant Thins Mucus - Cough & Cold - 12 Hr Support - Fast Acting - Extended-Release Bi-Layer Tablets - Over-the-Counter Medication**WELMATE**$10.03**1,234 rev1y ago](https://www.amazon.com/dp/B0DSQD7FYK) [![Amazon Basic Care Mucus Relief DM 12 Hour Chest Congestion & Cough Relief Guaifenesin & Dextromethorphan Extended-Release Tablets 600 mg/30 mg 40 Count (Pack of 1) (Packaging may vary)](https://m.media-amazon.com/images/I/41QDRPzHziL.jpg)**Amazon Basic Care Mucus Relief DM 12 Hour Chest Congestion & Cough Relief Guaifenesin & Dextromethorphan Extended-Release Tablets 600 mg/30 mg 40 Count (Pack of 1) (Packaging may vary)**Amazon Basic Care**$12.64**3,633 rev1y ago](https://www.amazon.com/dp/B07QW3WHD3)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![WELMATE - Guaifenesin 600mg (70 Tablets) - Mucus Relief - Expectorant Thins Mucus - Cough & Cold - 12 Hr Support - Fast Acting - Extended-Release Bi-Layer Tablets - Over-the-Counter Medication](https://m.media-amazon.com/images/I/4171vaBejwL.jpg)**WELMATE - Guaifenesin 600mg (70 Tablets) - Mucus Relief - Expectorant Thins Mucus - Cough & Cold - 12 Hr Support - Fast Acting - Extended-Release Bi-Layer Tablets - Over-the-Counter Medication**WELMATE**$10.03**4.7★**▲ 117%**](https://www.amazon.com/dp/B0DSQD7FYK) [![Mucus and Chest Congestion Relief Guaifenesin Extended-Release Tablets 600 mg 12 Hour Expectorant](https://m.media-amazon.com/images/I/417Qhep9TiL.jpg)**Mucus and Chest Congestion Relief Guaifenesin Extended-Release Tablets 600 mg 12 Hour Expectorant**GoodSense**$5.87**4.7★**▲ 88%**](https://www.amazon.com/dp/B0FJZV56W9) [![Ohm Guaifenesin 1200mg Chest Congestion and Mucus Relief Extended-Release Maximum Strength Tablets 12-Hour Expectorant Helps Thin & Loosen Stubborn Mucus Non-Drowsy (Pack of 1)](https://m.media-amazon.com/images/I/41ZR3IBKXCL.jpg)**Ohm Guaifenesin 1200mg Chest Congestion and Mucus Relief Extended-Release Maximum Strength Tablets 12-Hour Expectorant Helps Thin & Loosen Stubborn Mucus Non-Drowsy (Pack of 1)**Ohm**$6.26**4.5★**▲ 58%**](https://www.amazon.com/dp/B0BHKPCF64) [![HealthA2Z Mucus Relief Guaifenesin 600 mg 12 Hour Relief Dye Free No Benzene Expectorant Relieves Chest Congestion Thins and Loosens Mucus Extended Release (300 Counts)](https://m.media-amazon.com/images/I/41OGuKSGOzL.jpg)**HealthA2Z Mucus Relief Guaifenesin 600 mg 12 Hour Relief Dye Free No Benzene Expectorant Relieves Chest Congestion Thins and Loosens Mucus Extended Release (300 Counts)**HealthA2Z**$25.85**4.7★**▲ 58%**](https://www.amazon.com/dp/B0DTLJHLNM) [![HealthA2Z Mucus Relief Guaifenesin 400mg 300 Counts Dye Free No Benzene Immediate Release Expectorant](https://m.media-amazon.com/images/I/41JkpCFTSTL.jpg)**HealthA2Z Mucus Relief Guaifenesin 400mg 300 Counts Dye Free No Benzene Immediate Release Expectorant**HealthA2Z**$14.65**4.6★**▲ 40%**](https://www.amazon.com/dp/B074R7QJ8K)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — -19.7% search growth over the last 90 days.

3K2KHoliday '24Spike '25Prime Day '25Holiday '25 seasonSepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.6×

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Value For Money**22%

*“Great value”*

**Efficiency**14%

*“Gets the job done”*

**Quality-Overall**13%

*“Excellent Quality”*

**Cough Relief**10%

*“Effective cough relief”*

**Advertised Vs Actual Product**8%

*“As advertised”*

**Dosage**3%

*“I HAVE USED THE 400MG AND IS GOOD ENOUGH FOR ME”*

**Ease Of Chewing/Swallowing**3%

*“Ease of swallowing”*

**Ease Of Use**2%

*“Easy to use”*

**Sinus Relief**2%

*“Clears up my sinuses”*

**Cold Relief**2%

*“Cold relief”*

### **What buyers complain about **

**Functionality-Overall**13%

*“Just not effective”*

**Dosage**7%

*“dosage info is just wrong”*

**Size-Overall**5%

*“Why is the bottle so big”*

**Allergies**5%

*“allergies were bad”*

**Ease Of Use**5%

*“Its very difficult to open the individual packs”*

**Value For Money**5%

*“cheaper”*

**Cough Relief**3%

*“since I have a bad cough”*

**Advertised Vs Actual Product**3%

*“This is a deception in advertising”*

**Smell**2%

*“Smells”*

**Cold Relief**2%

*“Cold medication”*