guaifenesin 600 mg extended release tablets
Skip itSoft demand (-19.7% this quarter) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible15.0%search→purchase rate — share of searches ending in a sale
Avg price
Great$15.75avg listing price — sweet spot $15–$100
Price range
Good$5.87–$33.52cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Okay60%top-5 click share — leaders hold, buyers still browse
Market size
Okay$155K$155K/yr · 65K searches
Brand share
Okay86%top-5 brand share — brands hold most of the demand
Review moat
Okay3,405.52avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Growth
Bad-19.7%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, guaifenesin 600 mg extended release tablets is a $155K/yr Amazon United States market (65K searches/yr). The top 5 brands hold 86% of demand. Verdict: Skip it — 47/100.
Data updated Jul 11, 2026 · scored weekly · How we score niches
guaifenesin 600 mg extended release tablets market data
- Units sold / yr
- 10K–13K
- avg 250–500/product
- Revenue / yr
- $158K–$197K
- units × avg price
- Conversion rate
- 15.0%
- Avg BSR
- #176
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 90%
- Out of stock
- 4.6%
- Avg brand age
- 81 months
- Avg seller age
- 180 days
Competition & brand share
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%
Top 20: 100%
Top-5 click share
60%
Top 20: 99%
Open market
10%
- HealthA2Z31%
- Amazon Basic Care27%
- WELMATE12%
- Curist9%
- guardian7%
- GenCare4%
- Open — no brand owns it (6 brands, 10%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -19.7% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.6×
Top guaifenesin 600 mg extended release tablets search terms
- guaifenesin 600 mg35K/yr
- mucus relief 600 mg19K/yr
- guaifenesin 600 mg extended release8K/yr
- guaifenesin extended release4K/yr
Top guaifenesin 600 mg extended release tablets products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 21 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Amazon Basic Care Guaifenesin Extended-Release Tablets 600 mg 12 Hour Expectorant for Chest Congestion and Mucus Relief 20 Count
Amazon Basic Care$8.364.6★4,555 rev
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$25.854.7★943 rev
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$27.534.7★1,234 rev
Curist Guaifenesin 600 mg Extended Release Tablets (300 Dye-Free Tablets) - Expectorant Mucus Relief Generic Guaifenesin 600 mg (Bulk Pack)
Curist$30.244.8★980 rev
HealthA2Z Mucus Relief | Guaifenesin 600 mg | 12 Hour | No Benzene | Expectorant | Relieves Chest Congestion | Thins and Loosens Mucus | Extended Release (75 Counts)
HealthA2Z$9.894.7★943 rev
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)
NUVICARE$7.5576 rev
Mucus and Chest Congestion Relief Guaifenesin Extended-Release Tablets 600 mg 12 Hour Expectorant
GoodSense$5.8734 rev
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$25.85943 rev
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$10.031,234 rev
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$12.643,633 rev
Trending
90-day click momentumWELMATE - 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$10.034.7★
Mucus and Chest Congestion Relief Guaifenesin Extended-Release Tablets 600 mg 12 Hour Expectorant
GoodSense$5.874.7★
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$6.264.5★
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$25.854.7★
HealthA2Z Mucus Relief Guaifenesin 400mg 300 Counts Dye Free No Benzene Immediate Release Expectorant
HealthA2Z$14.654.6★
What buyers say about guaifenesin 600 mg extended release tablets
What buyers praise and complain about, mined from review topics.What buyers love
“Great value”
“Gets the job done”
“Excellent Quality”
“Effective cough relief”
“As advertised”
“I HAVE USED THE 400MG AND IS GOOD ENOUGH FOR ME”
“Ease of swallowing”
“Easy to use”
“Clears up my sinuses”
“Cold relief”
What buyers complain about
“Just not effective”
“dosage info is just wrong”
“Why is the bottle so big”
“allergies were bad”
“Its very difficult to open the individual packs”
“cheaper”
“since I have a bad cough”
“This is a deception in advertising”
“Smells”
“Cold medication”
Common questions
- Is guaifenesin 600 mg extended release tablets profitable to sell on Amazon United States?
- The niche generates $155K/yr across 21 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -19.7%. Flapen's verdict: Skip it (47/100).
- How competitive is the guaifenesin 600 mg extended release tablets niche?
- 12 brands and 63 sellers compete. The top 5 products take 60% of clicks and top 5 brands hold 86% of demand.
- What do buyers complain about in guaifenesin 600 mg extended release tablets?
- Top complaints mined from reviews: Functionality-Overall, Dosage, Size-Overall. The return rate is 0.0%.
- When does demand for guaifenesin 600 mg extended release tablets peak?
- Demand is steady year-round — the busiest month runs 1.6× the quietest.
- What does it cost to enter the guaifenesin 600 mg extended release tablets niche?
- Listings span $5.87–$33.52; the average listing price is $15.75 (sweet spot $15–$100). The average incumbent carries 3,406 reviews — the moat a new listing must climb.