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Diarrhoea

Diarrhoea shows searches that convert (24.3% search→purchase), but pricing outside the sweet spot ($6.24 avg) keeps it on the watch list.

Flapen Score

52
Worth a look
Market size 80Growth 26Conversion 100Competition 32Returns 100Price range 37Avg price 17Brand share 32Review moat 64Quality gap 21
This niche Category average

Is Diarrhoea profitable on Amazon?

According to Flapen's Amazon United Kingdom niche tracking, Diarrhoea is a £1.1M/yr Amazon United Kingdom market (733K searches/yr). The top 5 brands hold 86% of demand. Verdict: Worth a look — 52/100.

Diarrhoea: the Amazon niche in one read

Everything a seller checks before entering, in three answers.

Is the demand real?

Worth a look. Search demand moved +0.9% over the last 90 days and 24.3% of searches end in a purchase.

£1.1M

revenue / yr

Units sold / yr200K
Search volume / yr+0.9%733K
Conversion rate24.3%
Avg price£6.24

Who owns the niche?

The top 5 brands hold 86% of demand, so 14% of the market is open.

14%

open market share

Brands · sellers12 · 73
Top-5 product click share66%
Open market14%
Avg brand age80 months

Is there a way in?

Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.7★ — the gap to enter on.

0/100

page quality · 20 products

Sponsored placement80%
New entrants (1y)4· 4 succeeded
Avg rating4.7★
Avg reviews951

Top Diarrhoea products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Competition: brands, sellers & click share

The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.

£0£111K£222K£333K£444K101001K10K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

12 rising

Sellers

73

Top-5 brand share

86%

Top 20: 100%

Top-5 click share

66%

Top 20: 100%

Open market

11%

  • Imodium60%
  • Loritax9%
  • BECKYS CHOICE7%
  • Galpharm7%
  • Generic4%
  • TDY Store4%
  • Open — no brand owns it (6 brands, 11%)

Diarrhoea demand & seasonality

Weekly search volume, with the niche's key stats alongside.

Volume733KCVR24.3%Products20Brands12Top 5 Brands86%OOS Rate0.0%Rating4.7★Reviews951Avg BSR#15
20K15KPrime Day '25Spike '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.8×

Top Diarrhoea search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.

  • imodium343K/yr
  • diarrhea tablets for adults63K/yr
  • diarrhea tablets80K/yr
  • imodium tablets56K/yr
  • immodium51K/yr
  • anti diarrhea tablets28K/yr
  • diarrhoea relief16K/yr
  • diarrhea relief24K/yr
  • diarrhoea tablets13K/yr
  • diarrhea10K/yr

What reviews say buyers love and hate about Diarrhoea

What buyers mention most, as a share of all reviews.

What buyers love

88% of reviews
Value For Money24%

Excellent value for money

Advertised Vs Actual Product20%

As advertised

Efficiency16%

Works well

Quality-Overall14%

Great product, As described

Ease Of Use5%

Easy to use

What buyers complain about

79% of reviews
Value For Money22%

Waste of money

Functionality-Overall15%

Does not work or help

Ease Of Use11%

no use

Dosage9%

Dosage is a matter of trial and error as we are all individuals and probably have different reasons fir considering this product

Taste-Overall6%

Tastes awful

Common Diarrhoea questions

The questions sellers ask about this niche, answered from the tracked metrics.

Flapen scores Diarrhoea 52/100 on Amazon United Kingdom — Worth a look. The niche generates £1.1M/yr across 20 tracked products. 4 of 4 products launched in the last 360 days are still selling. Search demand moved +0.9% over the last 90 days.
Search demand for Diarrhoea on Amazon United Kingdom is steady year-round — the busiest month runs 1.8× the quietest.