Diphenhydramine
a concentrated shelf (top 5 take 100% of clicks) — Diphenhydramine doesn't clear our bar today.
Flapen Score
Is Diphenhydramine profitable on Amazon?
According to Flapen's Amazon United Kingdom niche tracking, Diphenhydramine is a £200K/yr Amazon United Kingdom market (244K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 36/100.
Diphenhydramine: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Not really. Search demand moved +16.8% over the last 90 days and 16.1% of searches end in a purchase.
£200K
revenue / yr
Who owns the niche?
The top 5 brands hold 100% of demand, so 0% of the market is open.
0%
open market share
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 · 5 products
Top Diphenhydramine products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Benadryl Allergy Relief Capsules (1 x 24) Antihistamine Capsules with Acrivastine Hayfever Tablets for Relief Suitable for Pet Dust and Skin Allergies
- Price
- £5.50
- Rating
- 4.6/5
- Reviews
- 5,012
- Age
- 8y ago
Benadryl Allergy One A Day 10 Mg Tablets - Effective and Long-Lasting Relief - 30 Count
- Price
- £6.76
- Rating
- 4.6/5
- Reviews
- 8,541
- Age
- 10y ago
Benadryl Allergy Relief Capsules (1 x 12 Capsules) Antihistamine Tablets with Acrivastine
- Price
- £3.89
- Rating
- 4.7/5
- Reviews
- 2,778
- Age
- 17y ago
Benadryl Allergy Relief for Children 6+ Years (1 x 60ml) Tutti Frutti Flavour Syrup Sugar & Colour Free with Cetirizine Long-Lasting All-Day Relief
- Price
- £4.43
- Rating
- 4.7/5
- Reviews
- 390
- Age
- 1y ago
240 x 10mg Cetirizine Dihydrochloride (8 Months Supply) One a Day hay Fever and Allergy Relief Tablets (8x30 Tablets)
- Price
- £4.85
- Rating
- 4.8/5
- Reviews
- 3,681
- Age
- 4y ago
Trending
90-day click momentumBenadryl Allergy Relief for Children 6+ Years (1 x 60ml) Tutti Frutti Flavour Syrup Sugar & Colour Free with Cetirizine Long-Lasting All-Day Relief
- Price
- £4.43
- Rating
- 4.7/5
- Reviews
- 390
- Age
- 1y ago
Benadryl Allergy One A Day 10 Mg Tablets - Effective and Long-Lasting Relief - 30 Count
- Price
- £6.76
- Rating
- 4.6/5
- Reviews
- 8,541
- Age
- 10y ago
Benadryl Allergy Relief Capsules (1 x 12 Capsules) Antihistamine Tablets with Acrivastine
- Price
- £3.89
- Rating
- 4.7/5
- Reviews
- 2,778
- Age
- 17y ago
Benadryl Allergy Relief Capsules (1 x 24) Antihistamine Capsules with Acrivastine Hayfever Tablets for Relief Suitable for Pet Dust and Skin Allergies
- Price
- £5.50
- Rating
- 4.6/5
- Reviews
- 5,012
- Age
- 8y ago
240 x 10mg Cetirizine Dihydrochloride (8 Months Supply) One a Day hay Fever and Allergy Relief Tablets (8x30 Tablets)
- Price
- £4.85
- Rating
- 4.8/5
- Reviews
- 3,681
- Age
- 4y ago
Newest
by launch dateBenadryl Allergy Relief for Children 6+ Years (1 x 60ml) Tutti Frutti Flavour Syrup Sugar & Colour Free with Cetirizine Long-Lasting All-Day Relief
- Price
- £4.43
- Rating
- 4.7/5
- Reviews
- 390
- Age
- 1y ago
240 x 10mg Cetirizine Dihydrochloride (8 Months Supply) One a Day hay Fever and Allergy Relief Tablets (8x30 Tablets)
- Price
- £4.85
- Rating
- 4.8/5
- Reviews
- 3,681
- Age
- 4y ago
Benadryl Allergy Relief Capsules (1 x 24) Antihistamine Capsules with Acrivastine Hayfever Tablets for Relief Suitable for Pet Dust and Skin Allergies
- Price
- £5.50
- Rating
- 4.6/5
- Reviews
- 5,012
- Age
- 8y ago
Benadryl Allergy One A Day 10 Mg Tablets - Effective and Long-Lasting Relief - 30 Count
- Price
- £6.76
- Rating
- 4.6/5
- Reviews
- 8,541
- Age
- 10y ago
Benadryl Allergy Relief Capsules (1 x 12 Capsules) Antihistamine Tablets with Acrivastine
- Price
- £3.89
- Rating
- 4.7/5
- Reviews
- 2,778
- Age
- 17y ago
Competition: brands, sellers & click share
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
Brands
2 falling
Sellers
82
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
100%
Top 20: 100%
Open market
0%
- Benadryl96%
- Crescent Pharma Limited4%
Diphenhydramine demand & seasonality
Weekly search volume, with the niche's key stats alongside.
Top Diphenhydramine search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- benadryl97K/yr
- benadryl allergy relief51K/yr
- diphenhydramine38K/yr
- benadryl one a day 30 tablets11K/yr
- diphenhydramine hydrochloride13K/yr
- acrivastine8K/yr
- benadryl for dogs17K/yr
- benedryl3K/yr
- diphenhydramine antihistamine2K/yr
- diphenhydramine tablets3K/yr
What reviews say buyers love and hate about Diphenhydramine
What buyers mention most, as a share of all reviews.
What buyers love
90% of reviews“Good value”
“Allergy relief”
“The best hay fever relief”
“Very effective”
“Does what it says on the package”
What buyers complain about
81% of reviews“Obviously they're the most expensive tablets”
“doesn't contain many doses”
“It doesn't state age limit on box”
“I find these make me drowsy”
“Didnt work for me”
Common Diphenhydramine questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
