---
title: "Acid Reflux Medicine — $4.4M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/acid-reflux-medicine"
last_updated: "2026-08-09T03:46:51.722Z"
locale: en
meta:
description: "Niche score 59/100 · $4.4M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 59/100 · $4.4M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Acid Reflux Medicine — $4.4M/yr Amazon US Niche (2026) - Flapen"
---
# **acid reflux medicine**
**Worth a look**
Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 97Growth 25Conversion 97Competition 58Returns 100Price range 43Avg price 42Brand share 52Review moat 20Quality gap 18
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Market size**
**Incredible****$4.4M**
$4.4M/yr · 2.5M searches
**Conversion**
**Incredible****15.7%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Good****50%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Good****74%**
top-5 brand share — brands hold most of the demand
**Price range**
**Okay****$3.96–$23.47**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Okay****$11.06**
avg listing price — sweet spot $15–$100
**Growth**
**Bad****-0.3%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****12,911.45**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, acid reflux medicine is a $4.4M/yr Amazon United States market (2.5M searches/yr). The top 5 brands hold 74% of demand. Demand peaks in Sep. Verdict: Worth a look — 59/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **acid reflux medicine market data**
- **Units sold / yr**
- **400K–500K**
- avg 12,500–15,000/product
- **Revenue / yr**
- **$4.4M–$5.5M**
- units × avg price
- **Conversion rate**
- **15.7%**
- **Avg BSR**
- **#75**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **94%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **87 months**
- **Avg seller age**
- **143 days**
## **Competition & brand share**
The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**18 **▼falling
**Sellers**
**620**
**Top-5 brand share**
**74%**
Top 20: 100%
**Top-5 click share**
**50%**
Top 20: 88%
**Open market**
**22%**
- Amazon Basic Care45% - Zantac11% - TUMS8% - Ohm6% - Prilosec4% - HealthA2Z4%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -0.3% search growth over the last 90 days.
125K75KSpike '25Prime Day '25 seasonSepDecMarJunAugNovMarMay
Peak months: Sep · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/us/health-household/acid-reflux-medicine/trend)
## **Top acid reflux medicine search terms**
- **acid reflux medicine**497K/yr-1.3%10.0% conv. - **antacid**422K/yr+2.8%11.8% conv. - **heartburn medicine**360K/yr+7.8%14.8% conv. - **acid reducer**180K/yr+5.6%16.8% conv. - **antacids**125K/yr+40.5%6.8% conv. - **zantac**133K/yr-1.2%20.1% conv. - **heartburn**110K/yr-32.1%5.6% conv. - **heartburn relief**106K/yr-8.2%7.5% conv. - **antacid tablets**98K/yr-8.4%9.2% conv. - **acid reflux**97K/yr-29.0%4.1% conv. [**All search terms **](https://flapen.com/research/us/health-household/acid-reflux-medicine/search-terms)
## **Top acid reflux medicine 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.
0%5%$221K10%$441K15%$662K20%$883K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Amazon Basic Care Maximum Strength Famotidine Tablets 20 mg Acid Reducer for Heartburn Relief Prevents & Relieves Acid Indigestion Heartburn Medicine 12 Hour Protection 200 Count**Amazon Basic Care**$10.31**4.7★54,405 rev](https://www.amazon.com/dp/B074F18H4B) [2**Amazon Basic Care Omeprazole Delayed Release Tablets 20 mg Treats Frequent Heartburn Acid Reducer Heartburn Medicine 42 Count (Pack of 1) (Packaging may vary)**Amazon Basic Care**$8.59**4.7★60,288 rev](https://www.amazon.com/dp/B074F1RWV9) [3**Zantac 360 Maximum Strength Tablets 50 Count Heartburn Prevention and Relief 20 mg Tablets**Zantac**$15.31**4.8★3,692 rev](https://www.amazon.com/dp/B091BH175S) [4**Ohm Omeprazole 20mg 42 Delayed-Release Tablets Acid Reducer for Frequent Heartburn 24-Hour Relief Heartburn Medicine Helps Relieve Stomach & Chest Discomfort (6 Weeks of Supply 42 Count)**Ohm**$8.90**4.8★18,221 rev](https://www.amazon.com/dp/B08F72WMNQ) [5**Prilosec OTC Frequent Heartburn Medicine and Acid Reducer Treatment with Omeprazole Proton Pump Inhibitor - PPI 42 Tablets (20 mg)**Prilosec**$21.09**4.7★19,716 rev](https://www.amazon.com/dp/B0000AN9L7)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Berkley Jensen Ultra Strength Antacid Chewable Tablets - 1000mg Calcium Carbonate for Heartburn Acid Indigestion Upset Stomach Relief - Assorted Berry Flavor - 265 Count**berkley jensen**$9.96**1,381 rev5mo ago](https://www.amazon.com/dp/B0GJN28LBP) [**Nexium 24HR Acid Reducer Heartburn Relief Capsules for All-Day and All-Night Protection from Frequent Heartburn Heartburn Medicine with Esomeprazole Magnesium - 42 Count**Nexium**$23.47**3,513 rev1y ago](https://www.amazon.com/dp/B0DX76JNN1) [**HealthA2Z Acid Reducer | Famotidine 20mg | Maximum Strength | Relief from Heart Burn Due to Acid Indigestion (365 Tablets (Pack of 1))**HealthA2Z**$10.46**4,063 rev1y ago](https://www.amazon.com/dp/B0DK9T9JWD) [**Amazon Basic Care Maximum Strength Famotidine Tablets 20 mg Acid Reducer for Heartburn Relief Prevents & Relieves Acid Indigestion Heartburn Medicine 12 Hour Protection 200 Count**Amazon Basic Care**$10.31**54,405 rev1y ago](https://www.amazon.com/dp/B074F18H4B) [**HealthA2Z Acid Reducer | Famotidine 20mg | Maximum Strength | Relief from Heart Burn Due to Acid Indigestion (225 Tablets (Pack of 1))**HealthA2Z**$8.81**4,063 rev2y ago](https://www.amazon.com/dp/B0CLF1QNYP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Berkley Jensen Ultra Strength Antacid Chewable Tablets - 1000mg Calcium Carbonate for Heartburn Acid Indigestion Upset Stomach Relief - Assorted Berry Flavor - 265 Count**berkley jensen**$9.96**4.7★**▲ 242%**](https://www.amazon.com/dp/B0GJN28LBP) [**HealthA2Z Acid Reducer | Famotidine 20mg | Maximum Strength | Relief from Heart Burn Due to Acid Indigestion (365 Tablets (Pack of 1))**HealthA2Z**$10.46**4.7★**▲ 54%**](https://www.amazon.com/dp/B0DK9T9JWD) [**Nexium 24HR Acid Reducer Heartburn Relief Capsules for All-Day and All-Night Protection from Frequent Heartburn Heartburn Medicine with Esomeprazole Magnesium - 42 Count**Nexium**$23.47**4.8★**▲ 50%**](https://www.amazon.com/dp/B0DX76JNN1) [**Amazon Basic Care Maximum Strength Famotidine Tablets 20 mg Acid Reducer for Heartburn Relief Prevents & Relieves Acid Indigestion Heartburn Medicine 50 Count**Amazon Basic Care**$5.21**4.7★**▲ 38%**](https://www.amazon.com/dp/B08ZF5KVCN) [**MAJOR Regular Strength Antacid Tablets - Calcium Carbonate 500 mg - Assorted Fruit Flavor - 150 Chewable Count (2 Pack)**MAJOR**$10.01**4.6★**▲ 32%**](https://www.amazon.com/dp/B01M07E78O)
**~~View all trending →~~**
## **What buyers say about acid reflux medicine**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**19%
*“much cheaper”*
**Efficiency**11%
*“Works effectively”*
**Quality-Overall**11%
*“Excellent Product”*
**Heart Health**9%
*“its a great product for heart”*
**Advertised Vs Actual Product**8%
*“Accurate description”*
**Taste-Overall**8%
*“Better Taste”*
**Acid Regulator/Stomach Ache Relief**5%
*“Helps with acid reflux”*
**Regulates Digestion**3%
*“Indigestion Relief”*
**Ease Of Chewing/Swallowing**3%
*“Easier to swallow”*
**Dosage**3%
*“Great product, easy to snap in half, for customized dosing, lol”*
### **What buyers complain about **
**Functionality-Overall**11%
*“Works poorly”*
**Taste-Overall**7%
*“Chalky Taste”*
**Value For Money**7%
*“its expensive”*
**Heart Health**6%
*“I was experiencing terrible heart burn”*
**Dosage**5%
*“Seems low dosage”*
**Size-Overall**5%
*“Smaller than expected”*
**Ease Of Chewing/Swallowing**4%
*“Hard to swallow”*
**Hard Feel**4%
*“Hard plastic tray”*
**Acid Regulator/Stomach Ache Relief**3%
*“they were making my stomach hurt”*
**Regulates Digestion**3%
*“this does not help my acid reflux at all”*
### **Top return reasons **
**Advertised Vs Actual Product**27%
**Functionality-Overall**23%
**Ingredients-Overall**19%
**Smell**14%
**Texture/Consistency-Overall**5%
**Product Condition**2%
**Dilute/Watery**2%
**Moist/Dry**2%
**Size-Overall**2%
**Defective Material/Parts**2%
## **Common questions**
- **Is acid reflux medicine profitable to sell on Amazon United States?**
- The niche generates $4.4M/yr across 31 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -0.3%. Flapen's verdict: Worth a look (59/100).
- **How competitive is the acid reflux medicine niche?**
- 18 brands and 620 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 74% of demand.
- **What do buyers complain about in acid reflux medicine?**
- Top complaints mined from reviews: Functionality-Overall, Taste-Overall, Value For Money. The return rate is 0.0%.
- **When does demand for acid reflux medicine peak?**
- Demand peaks in Sep; the busiest month runs 1.7× the quietest.
- **What does it cost to enter the acid reflux medicine niche?**
- Listings span $3.96–$23.47; the average listing price is $11.06 (sweet spot $15–$100). The average incumbent carries 12,911 reviews — the moat a new listing must climb.
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