Mylanta vs Rennie:Which is more popular in New Zealand?
In October 2026, Mylanta had more branded searches than Rennie among heartburn and indigestion brands in New Zealand. Mylanta had about 1,170 branded searches, while Rennie had 300. Mylanta made up 7.4% of all heartburn and indigestion brand searches we track, and Rennie accounted for 1.9%. When we asked ChatGPT and Google AI Overviews about heartburn and indigestion brands, Mylanta appeared in all five answers and Rennie in none.
Who do people search for more?
Mylanta, about 4 searches for every 1 for Rennie
Who does AI mention more?
Mylanta, mentioned in every answer we collected
Who does AI recommend more?
Mylanta, 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, Mylanta appeared in all five answers. Rennie 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 Mylanta or Rennie more popular in search?
This chart shows how often people search Google for Mylanta and Rennie 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 Mylanta, Rennie. 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 Mylanta and Rennie changed in New Zealand over the last 12 months?
3 findings
- Mylanta was ahead of Rennie in every measured month of the 12 months ending October 2026.
- Across the 12 months ending October 2026, Mylanta’s share of searches among heartburn and indigestion brands in New Zealand moved from 11.7% to 7.4%, and its estimated monthly branded searches moved from 1.1K to 1.2K.
- Across the 12 months ending October 2026, Rennie’s share of searches among heartburn and indigestion brands in New Zealand held steady at 1.9%, and its estimated monthly branded searches moved from 180 to 300.
How did search popularity change for New Zealand heartburn and indigestion brands in October 2026?
3 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, Mylanta lost share of searches among heartburn and indigestion brands in New Zealand, from 8.9% to 7.4%.
Estimated monthly branded searches for Rennie in New Zealand rose 66.7% over 12 measured months, from 180 to 300 in October 2026.
How are Mylanta’s and Rennie’s branded searches counted?
16 search terms
Brandwave collects information about searches that people make online using Mylanta’s and Rennie’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.
Other head-to-heads among heartburn and indigestion brands
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