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cimetidine

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A concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.

Market size 67Growth 26Conversion 100Competition 0Returns 100Price range 47Avg price 78Brand share 0Review moat 23Quality gap 23

Conversion

Incredible21.5%

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

Returns

Incredible0.0%

return rate — above 6% kills the launch gate

Avg price

Great$16.23

avg listing price — sweet spot $15–$100

Market size

Good$675K

$675K/yr · 193K searches

Price range

Okay$8.30–$20.83

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

Growth

Okay+0.8%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Review moat

Bad7,034

avg incumbent reviews — the moat a new listing must climb

Competition

Bad100%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Competition

The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.

Brands

2 flat

Sellers

30

Top-5 brand share

100%

Open market

0%

  • Tagamet69%
  • Amazon Basic Care31%

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%10%$68K20%$135K30%$203K40%$270K1K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 4 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +0.8% search growth over the last 90 days.
10K6KSpike '25SepDecMarJunAugNovMarMay

Peak months: Feb · busiest ÷ quietest = 2.0×

Reviews

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

What buyers love

Efficiency28%

“Very effective”

Heart Health27%

“No heartburn”

Value For Money13%

“JUST AS GOOD AS THE NAME BRAND FOR A 1/3 OF THE PRICE”

Quality-Overall11%

“Good off brand choice”

Acid Regulator/Stomach Ache Relief11%

“Its a wonder drug for the stomach”

Sleep Quality2%

“calms that burning feeling without making me feel weird or sleepy”

Nutritional Content2%

“Great For Overall Stomach Problems”

Ease Of Use2%

“is very helpful”

What buyers complain about

Smell42%

“This OTC has no smell”

Value For Money25%

“expensive”

Functionality-Overall8%

“Does not work”

Heart Health8%

“Heartburn galore”

Acid Regulator/Stomach Ache Relief8%

“made my stomach very upset”