Is benadryl capsules profitable to sell on Amazon United States?

The niche generates $207K/yr across 13 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -8.7%. Flapen's verdict: Skip it (44/100).

How competitive is the benadryl capsules niche?

9 brands and 105 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 88% of demand.

What do buyers complain about in benadryl capsules?

Top complaints mined from reviews: Allergies, Sleep Quality, Functionality-Overall. The return rate is 0.0%.

When does demand for benadryl capsules peak?

Demand peaks in Jan–Feb–Mar; the busiest month runs 2.6× the quietest.

What does it cost to enter the benadryl capsules niche?

Listings span $4.12–$24.63; the average listing price is $10.74 (sweet spot $15–$100). The average incumbent carries 11,889 reviews — the moat a new listing must climb.

benadryl capsules

Skip it

Strong incumbent ratings (4.7★) — this niche doesn't clear our bar today.

Returns

Incredible0.0%

return rate — above 5% kills the launch gate

Conversion

Incredible19.1%

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

Price range

Okay$4.12–$24.63

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

Market size

Okay$207K

$207K/yr · 101K searches

Avg price

Okay$10.74

avg listing price — sweet spot $15–$100

Competition

Okay66%

top-5 click share — leaders hold, buyers still browse

Brand share

Okay88%

top-5 brand share — brands hold most of the demand

Growth

Bad-8.7%

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

Review moat

Bad11,889.46

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

According to Flapen's Amazon United States niche tracking, benadryl capsules is a $207K/yr Amazon United States market (101K searches/yr). The top 5 brands hold 88% of demand. Demand peaks in Jan–Feb–Mar. Verdict: Skip it — 44/100.

Data updated Jul 11, 2026 · scored weekly · How we score niches

benadryl capsules market data

Units sold / yr: 20K–25K; avg 1,250–1,500/product
Revenue / yr: $215K–$269K; units × avg price
Conversion rate: 19.1%
Avg BSR: #110
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.5%
Avg brand age: 86 months
Avg seller age: 165 days

Competition & brand share

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

Brands

9 falling

Sellers

105

Top-5 brand share

88%

Top 20: 100%

Top-5 click share

66%

Top 20: 100%

Open market

Benadryl51%
RIGHT REMEDIES12%
Amazon Basic Care12%
Equate7%
GoodMeds6%
GenCare5%
Open — no brand owns it (3 brands, 7%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -8.7% search growth over the last 90 days.

Peak months: Jan, Feb, Mar · busiest ÷ quietest = 2.6×

Open Trend

Top benadryl capsules 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Benadryl Liqui-Gels Allergy Medicine Dye-Free Liquid Gel Capsules with 25 mg of Diphenhydramine HCl Antihistamine for Relief of Allergy & Cold Symptoms Like Runny Nose & Sneezing 24 ct

Benadryl$7.124.8★16,920 rev

RIGHT REMEDIES Allergy Relief Capsules Antihistamine Diphenhydramine HCL 25mg Relieves Seasonal Indoor or Outdoor Allergies Runny Nose Sneezing Allergy Relief (1000 Capsules)

RIGHT REMEDIES$18.384.8★567 rev

Amazon Basic Care Allergy Relief Diphenhydramine HCl 25 mg Antihistamine Tablets for Symptoms Due to Hay Fever and Upper Respiratory Allergies Mini-Tabs 100 Count

Amazon Basic Care$4.124.8★54,786 rev

Benadryl Liqui-Gels Antihistamine Allergy Medicine & Cold Symptom Relief Dye-Free Liquid Gels with 25 mg of Diphenhydramine HCl for Symptoms Such As Runny Nose Sneezing & More 48 ct

Benadryl$9.964.8★16,920 rev

Benadryl Allergy Medicine for Adults and Children 6 Years and Older Ultratablets 25 mg Diphenhydramine HCl for Indoor and Outdoor Allergies Antihistamine Tablets 100 Count Size

Benadryl$13.794.8★31,799 rev

Newest

by launch date

GoodMeds Allergy Medicine Antihistamine Diphenhydramine HCl 25 mg | Children and Adults | Relieve Itchy Eyes Runny Nose Sneezing (25 mg 600 Tablets)

GoodMeds$9.60534 rev

6mo ago

NUVICARE Allergy Relief Softgels Dye-Free Diphenhydramine 25mg Antihistamine Meds for Runny Nose Sneezing Itchy Eyes & Throat Compare to LiquiGels Allergy Medicine for Adults (60 Count)

NUVICARE$7.1187 rev

11mo ago

WELMATE Allergy Relief - Diphenhydramine 50 mg - 1000 Count Capsules - Antihistamine - Allergy & Cold Symptoms - Sneezing Runny Nose Itchy Eyes & Throat

WELMATE$24.63677 rev

2y ago

Benadryl Liqui-Gels Antihistamine Allergy Medicine & Cold Symptom Relief Dye-Free Liquid Gels with 25 mg of Diphenhydramine HCl for Symptoms Such As Runny Nose Sneezing & More 48 ct

Benadryl$9.9616,920 rev

3y ago

Benadryl Extra Strength Relief Allergy Tablets 50 mg Diphenhydramine HCl 2X The Strength in One Pill Compared to 1 of the Ultratabs Works When You Need it Most 24 Count

Benadryl$8.065,857 rev

4y ago

What buyers say about benadryl capsules

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

What buyers love

Value For Money21%

“Very affordable”

Allergies19%

“Good for allergies”

Advertised Vs Actual Product10%

“As advertised”

Quality-Overall9%

“Always consistent with quality”

Efficiency9%

“Does its job”

Sleep Quality4%

“Sleeping great”

Dosage3%

“The tablets are easy to take”

Sinus Relief2%

“These work well when my sinuses act up”

Ease Of Chewing/Swallowing2%

“not difficult to swallow”

Ease Of Use2%

“Convenient to use”

What buyers complain about

Allergies30%

“having allergic reaction to something”

Sleep Quality6%

“It can make you a little sleepy”

Functionality-Overall6%

“Not very Effective”

Ease Of Use3%

“Too hard to get out”

Dosage3%

“We're not getting the full 25 mg dosage”

Side Effects2%

“there are the typical side effects like drowsiness”

Strength2%

“Weak does not do anything”

Advertised Vs Actual Product2%

“Just be aware of these are capsules, not tablets”

Itch Relief2%

“Does not help with itching”

Value For Money1%

“Benadryl may not be THAT much more expensive”

Common questions

Is benadryl capsules profitable to sell on Amazon United States?: The niche generates $207K/yr across 13 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -8.7%. Flapen's verdict: Skip it (44/100).
How competitive is the benadryl capsules niche?: 9 brands and 105 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 88% of demand.
What do buyers complain about in benadryl capsules?: Top complaints mined from reviews: Allergies, Sleep Quality, Functionality-Overall. The return rate is 0.0%.
When does demand for benadryl capsules peak?: Demand peaks in Jan–Feb–Mar; the busiest month runs 2.6× the quietest.
What does it cost to enter the benadryl capsules niche?: Listings span $4.12–$24.63; the average listing price is $10.74 (sweet spot $15–$100). The average incumbent carries 11,889 reviews — the moat a new listing must climb.