Gaviscon vs Nexium:Which is more popular in New Zealand?
In October 2026, Gaviscon had more branded searches than Nexium among heartburn and indigestion brands in New Zealand. Gaviscon had about 8,210 branded searches, while Nexium had 1,520. Gaviscon made up 52.2% of all heartburn and indigestion brand searches we track, and Nexium accounted for 9.7%. When we asked ChatGPT and Google AI Overviews about heartburn and indigestion brands, Gaviscon appeared in four of the five answers and Nexium in none.
Who do people search for more?
Gaviscon, about 5 searches for every 1 for Nexium
Who does AI mention more?
Gaviscon, mentioned in 4 of 5 answers, Nexium in 0
Who does AI recommend more?
Gaviscon, the only one of the two named
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Top heartburn and indigestion brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Gaviscon was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Nexium did not appear in any of the five answers.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
Mylanta5 of 5Named in 3 of 3 ChatGPT answersNamed in 2 of 2 Google answers- Gaviscon4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Quick-Eze4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Losec2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Nexium0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers- Rennie0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Eno0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about heartburn and indigestion brands
5 answers
Asked ChatGPT
“Which heartburn and indigestion relief brand should I buy in New Zealand?”
Asked ChatGPT
“What are the best heartburn and indigestion relief brands in New Zealand?”
Asked ChatGPT
“What's the best heartburn and indigestion relief brand in New Zealand for acid reflux?”
Searched Google, AI Overview
“best heartburn relief”
Searched Google, AI Overview
“indigestion tablets nz”
Brands are shown in the order each answer named them. The survey took place in New Zealand on October 21, 2026.
Is Gaviscon or Nexium more popular in search?
This chart shows how often people search Google for Gaviscon and Nexium by name. Each line represents a brand's share of searches for all seven heartburn and indigestion brands we track, month by month, from searches in New Zealand.
Share of searches by month for Gaviscon, Nexium. The figures are in the table below the chart.
View monthly share of searches table
| Month | Gaviscon | Quick-Eze | Losec | Nexium | Mylanta | Rennie | Eno |
|---|---|---|---|---|---|---|---|
| Nov 2025 | 53.7% | 13.2% | 12.4% | 5.7% | 11.7% | 1.9% | 1.4% |
| Dec 2025 | 51.7% | 15.6% | 11.4% | 8.9% | 9% | 2.3% | 1.1% |
| Jan 2026 | 50.3% | 17.9% | 12.4% | 6.1% | 9.8% | 2% | 1.5% |
| Feb 2026 | 54.8% | 13% | 12.1% | 5.5% | 11.1% | 2.4% | 1.1% |
| Mar 2026 | 52.4% | 14.2% | 11.9% | 5.1% | 10% | 5.2% | 1.2% |
| Apr 2026 | 53.5% | 14.8% | 13.1% | 5.3% | 10.1% | 2.2% | 0.98% |
| May 2026 | 53.7% | 17.3% | 10.7% | 4.9% | 10% | 2.3% | 1.1% |
| Jun 2026 | 57.3% | 16.7% | 10% | 3.8% | 9.2% | 2.1% | 0.87% |
| Jul 2026 | 56% | 15.8% | 10.7% | 4% | 9.5% | 2.9% | 1.2% |
| Aug 2026 | 54.5% | 18.2% | 9.2% | 4.6% | 9.6% | 3.1% | 0.8% |
| Sep 2026 | 58.9% | 16.4% | 9.3% | 3.7% | 8.9% | 2.2% | 0.66% |
| Oct 2026 | 52.2% | 17.7% | 10.4% | 9.7% | 7.4% | 1.9% | 0.76% |
How has branded search for Gaviscon and Nexium changed in New Zealand over the last 12 months?
3 findings
- Gaviscon was ahead of Nexium in every measured month of the 12 months ending October 2026.
- Across the 12 months ending October 2026, Gaviscon’s share of searches among heartburn and indigestion brands in New Zealand moved from 53.7% to 52.2%, and its estimated monthly branded searches moved from 5K to 8.2K.
- Across the 12 months ending October 2026, Nexium’s share of searches among heartburn and indigestion brands in New Zealand moved from 5.7% to 9.7%, and its estimated monthly branded searches moved from 530 to 1.5K.
How did search popularity change for New Zealand heartburn and indigestion brands in October 2026?
2 changes
In October 2026, Nexium overtook Mylanta to rank 4th among heartburn and indigestion brands in New Zealand, with 9.7% of the searches.
In October 2026, Gaviscon lost share of searches among heartburn and indigestion brands in New Zealand, from 58.9% to 52.2%.
How are Gaviscon’s and Nexium’s branded searches counted?
23 search terms
Brandwave collects information about searches that people make online using Gaviscon’s and Nexium’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Gaviscon
14 branded search terms
- advanced gaviscon
- gaviscon
- gaviscon antacid
- gaviscon double action
- gaviscon dual action
- gaviscon extra strength
- gaviscon heartburn
- gaviscon indigestion
- gaviscon infant
- gaviscon liquid
- gaviscon reflux
- gaviscon sachets
- gaviscon tablets
- gaviscon woolies
Nexium
9 branded search terms
- nexium
- nexium and gerd
- nexium control
- nexium drug
- nexium omeprazole
- nexium pills
- nexium tablets
- nexium v omeprazole
- omeprazole v nexium
Other head-to-heads among heartburn and indigestion brands
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