--- title: "Gaviscon vs Rennie: Which is more popular in New Zealand?" description: "Is Gaviscon or Rennie more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Heartburn and indigestion brands set in New Zealand. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time." canonical: "https://gobrandwave.com/demand/nz/compare/gaviscon-vs-rennie" publisher: "Brandwave" --- # Gaviscon vs Rennie: Which is more popular in New Zealand? Is Gaviscon or Rennie more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Heartburn and indigestion brands set in New Zealand. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time. ## Key facts - **Compared**: Gaviscon and Rennie - **Competitive set**: Heartburn and indigestion brands - **Market**: New Zealand - **Month measured**: Oct 2026 - **Gaviscon Share of Search**: 52.2% - **Rennie Share of Search**: 1.9% ## Is Gaviscon or Rennie more popular in search? - In October 2026, Gaviscon had more branded searches than Rennie among heartburn and indigestion brands in New Zealand. Gaviscon had about 8,210 branded searches, while Rennie had 300. Gaviscon made up 52.2% of all heartburn and indigestion brand searches we track, and Rennie accounted for 1.9%. - Gaviscon was ahead of Rennie 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, 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. ## 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. Rennie did not appear in any of the five answers. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | --- | | Gaviscon | 1st | 3 of 3 | 1 of 2 | 4 of 5 | | Quick-Eze | 2nd | 3 of 3 | 1 of 2 | 4 of 5 | | Mylanta | 3rd | 3 of 3 | 2 of 2 | 5 of 5 | | Losec | 4th | 1 of 3 | 1 of 2 | 2 of 5 | | Nexium | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Rennie | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Eno | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | ## Every AI answer about heartburn and indigestion brands - Asked ChatGPT "Which heartburn and indigestion relief brand should I buy in New Zealand?": 1. Gaviscon, 2. Quick-Eze, 3. Mylanta - Asked ChatGPT "What are the best heartburn and indigestion relief brands in New Zealand?": 1. Gaviscon, 2. Mylanta, 3. Quick-Eze - Asked ChatGPT "What's the best heartburn and indigestion relief brand in New Zealand for acid reflux?": 1. Gaviscon, 2. Mylanta, 3. Quick-Eze, 4. Losec - Searched Google, AI Overview "best heartburn relief": 1. Mylanta - Searched Google, AI Overview "indigestion tablets nz": 1. Quick-Eze, 2. Gaviscon, 3. Mylanta, 4. Losec Not named in any answer: Nexium, Rennie and Eno. Brands are listed in the order each answer named them. The answers were collected in New Zealand on October 21, 2026. ## How did search popularity change for New Zealand heartburn and indigestion brands in October 2026? - In October 2026, Gaviscon lost share of searches among heartburn and indigestion brands in New Zealand, from 58.9% to 52.2%. - Estimated monthly branded searches for Rennie in New Zealand rose 66.7% over 12 measured months, from 180 to 300 in October 2026. ## How has branded search for Gaviscon and Rennie changed in New Zealand over the last 12 months? | Month | Gaviscon estimated searches | Gaviscon Share of Search | Gaviscon rank | Rennie estimated searches | Rennie Share of Search | Rennie rank | | --- | --- | --- | --- | --- | --- | --- | | Nov 2025 | 5K | 53.7% | 1 | 180 | 1.9% | 6 | | Dec 2025 | 5.2K | 51.7% | 1 | 230 | 2.3% | 6 | | Jan 2026 | 5.4K | 50.3% | 1 | 210 | 2% | 6 | | Feb 2026 | 5.3K | 54.8% | 1 | 230 | 2.4% | 6 | | Mar 2026 | 5.7K | 52.4% | 1 | 570 | 5.2% | 5 | | Apr 2026 | 5.4K | 53.5% | 1 | 220 | 2.2% | 6 | | May 2026 | 5.8K | 53.7% | 1 | 250 | 2.3% | 6 | | Jun 2026 | 6.6K | 57.3% | 1 | 240 | 2.1% | 6 | | Jul 2026 | 6.8K | 56% | 1 | 350 | 2.9% | 6 | | Aug 2026 | 6.8K | 54.5% | 1 | 380 | 3.1% | 6 | | Sep 2026 | 8.1K | 58.9% | 1 | 300 | 2.2% | 6 | | Oct 2026 | 8.2K | 52.2% | 1 | 300 | 1.9% | 6 | ## How are Gaviscon’s and Rennie’s branded searches counted? Brandwave collects information about searches that people make online using Gaviscon’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. - **Gaviscon**: Measured on the 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” and “gaviscon woolies”, summed into one figure. - **Rennie**: Measured on the search terms “rennie”, “rennie duo”, “rennie duo liquid”, “rennie heart burn”, “rennie indigestion”, “rennie liquid”, “rennie peppermint”, “rennie spearmint”, “rennie tablets” and “rennies indigestion tablets”, summed into one figure. - [Gaviscon profile](/demand/nz/brands/gaviscon) - [Rennie profile](/demand/nz/brands/rennie) - [All heartburn and indigestion brands in New Zealand](/demand/nz/categories/nz-heartburn-and-digestive-brands): The set both shares are measured inside, 7 brands. ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Is Gaviscon or Rennie more popular in search? In October 2026, Gaviscon had more branded searches than Rennie among heartburn and indigestion brands in New Zealand. Gaviscon had about 8,210 branded searches, while Rennie had 300. Gaviscon made up 52.2% of all heartburn and indigestion brand searches we track, and Rennie accounted for 1.9%. ## Cite this page Brandwave. "Gaviscon vs Rennie: Which is more popular in New Zealand?". https://gobrandwave.com/demand/nz/compare/gaviscon-vs-rennie This page is also available as HTML at https://gobrandwave.com/demand/nz/compare/gaviscon-vs-rennie. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.