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Diarrhoea

Maybe

Buyers convert on 24.3% of searches. But products sell for $6.24 on average, outside the sweet spot, so Diarrhoea is a Maybe.

Flapen Score
52
52 / 100
Top 33% of 2,035 Health & Personal Care niches · +4 vs the category median of 48
Market size
£1.1M/yr733K searches / yr
90-day growth
+0.9%search demand this quarter
Competition
66%top-5 click share · 12 brands · 73 sellers

Flapen Score

Diarrhoea against its category

The dotted line is the Health & Personal Care average. Past it, Diarrhoea is stronger. Inside it, weaker.

52Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Diarrhoea market on Amazon at a glance

Shoppers on Amazon United Kingdom searched for Diarrhoea 733K times last year and spent an estimated £1.1M. The top 5 brands take 86% of clicks. Flapen scores it 52 out of 100, a Maybe.

01 · Demand

An estimated 24.3% of those searches ended in a purchase.

Shoppers searched for this 733K times in the last 12 months. That counts every search on Amazon United Kingdom for this niche's terms. An estimated 24.3% of those searches ended in a purchase. Searches in the last 90 days moved +0.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated £1.1M a year.

Searches, last 12 months
733K
Growth, 90 days vs prior 90
+0.9%
Conversion, latest week
24.3%
Market size, estimated
£1.1Ma year
Peak month
September1.8× the quietest month
Top search term
imodium343K searches a year

02 · Price

A sale here is worth £6.24.

Listings sell for £6.24 on average, from £2.44 to £22.51. Amazon reports units sold in ranges. This niche sold 150K to 200K a year. The average listing sells 6,000 to 8,000 of them. At £6.24 that is £37K to £50K a year per listing.

Average price
£6.24under the $15 to $100 sweet spot
Price range
£2.44–£22.51
Amazon United Kingdom median price
£12.12across 27,606 niches
Units sold a year
150K–200K
Units per listing a year
6,000–8,000
Revenue per listing a year
£37K–£50K
Returns
0.0%of orders · Amazon United Kingdom median 0.6%

03 · Entry bar

The bar here is low.

80% of listings pay for placement with sponsored ads. 95% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #15 within Over-the-Counter Medication. It carries 951 reviews at 4.67 stars, so a new listing needs social proof before a better product.

Sponsored listings
80%
Prime listings
95%
Out of stock, average day
0.0%
Average rank
#15in Over-the-Counter Medication
Average rating
4.67 starsAmazon United Kingdom average 4.36 stars
Average reviews
951per listing
Listings tracked
20

04 · Newcomers

4 of last year's 4 launches cleared the first-year sales bar.

4 products launched here in the last 12 months. 4 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 80 months on average, so the names here are established.

Launched, last 12 months
4
Successful launches
4Amazon's first-year sales bar
Average brand age
80 months

Products

Top Diarrhoea products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 25, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 66% of clicks. Leaders hold, but buyers still shop past them.

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

Brands

12 rising

Sellers

73

Est. top-5 brand share

86%

Top 20: 100%

Est. 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%)

Demand

Diarrhoea search demand

Weekly searches over the year, seasonality beneath. Pick a range.

20K15KPrime Day '25Spike '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.8×

Search terms

Top Diarrhoea search terms shoppers use

The exact words shoppers type, with estimated 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

Reviews and returns

What reviews say buyers love and hate about Diarrhoea

We read the reviews and the return reasons for every product selling here.

24%of positive reviews mention “Value For Money”
22%of negative reviews mention “Value For Money”
<0.1%of orders come back, a rate Amazon rounds to zero
“Waste of money”
A buyer, on “Value For Money”22% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

15 topics

NegativePositive

FAQ

Common Diarrhoea questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data