Antacid
FailThe top 5 brands take 93% of clicks, so Antacid is a Fail.
- Flapen Score
- 49 / 100Ranks 7,059 of 14,768 Health & Household niches · on the category median49
- Market size
- $784K/yr428K searches / yr
- 90-day growth
- -4.6%search demand this quarter
- Competition
- 64%top-5 click share · 8 brands · 115 sellers
Flapen Score
Antacid against its category
The dotted line is the Health & Household average. Past it, Antacid is stronger. Inside it, weaker.
Market
The Antacid market on Amazon at a glance
Shoppers on Amazon United States searched for Antacid 428K times last year and spent an estimated $784K. The top 5 brands take 93% of clicks. Demand peaks in Jul–Aug. Flapen scores it 49 out of 100, a Fail.
01 · Demand
An estimated 18.2% of those searches ended in a purchase.
Shoppers searched for this 428K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 18.2% of those searches ended in a purchase. Searches in the last 90 days moved -4.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $784K a year.
- Searches, last 12 months
- 428K
- Growth, 90 days vs prior 90
- -4.6%
- Conversion, latest week
- 18.2%
- Market size, estimated
- $784Ka year
- Peak month
- August2.3× the quietest month
- Top search term
- antacid tablets chewable247K searches a year
02 · Price
A sale here is worth $10.05.
Listings sell for $10.05 on average, from $5.18 to $28.12. Amazon reports units sold in ranges. This niche sold 80K to 100K a year. The average listing sells 3,000 to 4,000 of them. At $10.05 that is $30K to $40K a year per listing.
- Average price
- $10.05under the $15 to $100 sweet spot
- Price range
- $5.18–$28.12
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 80K–100K
- Units per listing a year
- 3,000–4,000
- Revenue per listing a year
- $30K–$40K
- Returns
- 0.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
68% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 4.3% of listings are out of stock. The average listing ranks #69 within Digestion & Nausea. It carries 5,020 reviews at 4.71 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 68%
- Prime listings
- 100%
- Out of stock, average day
- 4.3%
- Average rank
- #69in Digestion & Nausea
- Average rating
- 4.71 starsAmazon United States average 4.42 stars
- Average reviews
- 5,020per listing
- Listings tracked
- 19
04 · Newcomers
2 of last year's 2 launches cleared the first-year sales bar.
2 products launched here in the last 12 months. 2 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 100 months on average, so the names here are established.
- Launched, last 12 months
- 2
- Successful launches
- 2Amazon's first-year sales bar
- Average brand age
- 100 months
Products
Top Antacid 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 11, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Amazon Basic Care Chewy Bites Chewable Antacid Tablets Ultra Strength Heartburn Relief Acid Indigestion Upset & Sour Stomach Fast-Acting Assorted Fruit Flavors 90 Count
- Price
- $8.97
- Rating
- 4.6/5
- Reviews
- 5,809
- Age
- 4y ago

Berkley Jensen Ultra Strength Antacid Chewable Tablets - 1000mg Calcium Carbonate for Heartburn Acid Indigestion Upset Stomach Relief - Assorted Berry Flavor - 265 Count
- Price
- $9.96
- Rating
- 4.7/5
- Reviews
- 1,381
- Age
- 5mo ago

TUMS Ultra Strength Chewable Antacid Tablets for Heartburn Relief and Acid Indigestion Relief Assorted Berries - 160 Count
- Price
- $9.85
- Rating
- 4.8/5
- Reviews
- 7,542
- Age
- 18y ago

MAJOR Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (2 Pack)
- Price
- $10.01
- Rating
- 4.6/5
- Reviews
- 881
- Age
- 11y ago

Amazon Basic Care Heartburn & Gas SuperChews Chewable Tablets Fast-Acting Relief Mixed Berry 82 Count (Previously SoundHealth)
- Price
- $8.17
- Rating
- 4.6/5
- Reviews
- 6,709
- Age
- 4y ago
Trending
estimated 90-day click momentum
TUMS Smoothies Chewable Antacid Tablets for Extra Strength Heartburn Relief Mixed Berry - 236 Count
- Price
- $14.70
- Rating
- 4.8/5
- Reviews
- 173
- Age
- 2mo ago

Berkley Jensen Ultra Strength Antacid Chewable Tablets - 1000mg Calcium Carbonate for Heartburn Acid Indigestion Upset Stomach Relief - Assorted Berry Flavor - 265 Count
- Price
- $9.96
- Rating
- 4.7/5
- Reviews
- 1,381
- Age
- 5mo ago

Major Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (1 Pack)
- Price
- $6.64
- Rating
- 4.6/5
- Reviews
- 881
- Age
- 11y ago

MAJOR Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (2 Pack)
- Price
- $10.01
- Rating
- 4.6/5
- Reviews
- 881
- Age
- 11y ago

Rolaids Ultra Strength Antacid Chewable Tablets Mint 72-Count
- Price
- $8.83
- Rating
- 4.8/5
- Reviews
- 2,628
- Age
- 12y ago
Newest
by launch date
TUMS Smoothies Chewable Antacid Tablets for Extra Strength Heartburn Relief Mixed Berry - 236 Count
- Price
- $14.70
- Rating
- 4.8/5
- Reviews
- 173
- Age
- 2mo ago

Berkley Jensen Ultra Strength Antacid Chewable Tablets - 1000mg Calcium Carbonate for Heartburn Acid Indigestion Upset Stomach Relief - Assorted Berry Flavor - 265 Count
- Price
- $9.96
- Rating
- 4.7/5
- Reviews
- 1,381
- Age
- 5mo ago

Quality Choice Ultra Strength Antacid Tablets Heartburn and Acid Indigestion Relief Calcium Carbonate 1000 mg Berry Flavored Chewable Tablets 72 Count
- Price
- $7.66
- Rating
- 4.7/5
- Reviews
- 779
- Age
- 3y ago

TUMS Chewy Bites Chewable Antacid Tablets for Ultra Strength Heartburn Relief Mixed Fruit - 200 Count
- Price
- $28.12
- Rating
- 4.7/5
- Reviews
- 4,819
- Age
- 3y ago

Amazon Basic Care Heartburn & Gas SuperChews Chewable Tablets Fast-Acting Relief Mixed Berry 82 Count (Previously SoundHealth)
- Price
- $8.17
- Rating
- 4.6/5
- Reviews
- 6,709
- Age
- 4y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 64% of clicks. Leaders hold, but buyers still shop past them.
Brands
8 falling
Sellers
115
Est. top-5 brand share
93%
Top 20: 100%
Est. top-5 click share
64%
Top 20: 100%
Open market
3%
- Amazon Basic Care35%
- TUMS26%
- berkley jensen15%
- MAJOR13%
- RUGBY LABORATORIES5%
- KIRKLAND3%
- Open — no brand owns it (2 brands, 3%)
Demand
Antacid search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jul, Aug · busiest ÷ quietest = 2.3×
Search terms
Top Antacid search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- antacid tablets chewable247K/yr
- antacids chewable extra strength54K/yr
- chewable antacid26K/yr
- antacids chewable19K/yr
- anti acid relief chewable12K/yr
- antacid chewable tablets17K/yr
- chewable antacids7K/yr
- antacid chewable9K/yr
- generic tums4K/yr
- calcium carbonate chewable8K/yr
Reviews and returns
What reviews say buyers love and hate about Antacid
We read the reviews and the return reasons for every product selling here.
“Bad aftertaste”
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.
14 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Antacid 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









