--- title: "Nexium vs Rennie: Which is more popular in New Zealand?" description: "Is Nexium 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/nexium-vs-rennie" publisher: "Brandwave" --- # Nexium vs Rennie: Which is more popular in New Zealand? Is Nexium 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**: Nexium and Rennie - **Competitive set**: Heartburn and indigestion brands - **Market**: New Zealand - **Month measured**: Oct 2026 - **Nexium Share of Search**: 9.7% - **Rennie Share of Search**: 1.9% ## Is Nexium or Rennie more popular in search? - In October 2026, Nexium had more branded searches than Rennie among heartburn and indigestion brands in New Zealand. Nexium had about 1,520 branded searches, while Rennie had 300. Nexium made up 9.7% of all heartburn and indigestion brand searches we track, and Rennie accounted for 1.9%. - The lead changed hands 2 times in the 12 months ending October 2026: Rennie took it in March 2026, Nexium took it in April 2026. - 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. - 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, neither Nexium nor Rennie showed up 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, Nexium overtook Mylanta to rank 4th among heartburn and indigestion brands in New Zealand, with 9.7% of the searches. - 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 Nexium and Rennie changed in New Zealand over the last 12 months? | Month | Nexium estimated searches | Nexium Share of Search | Nexium rank | Rennie estimated searches | Rennie Share of Search | Rennie rank | | --- | --- | --- | --- | --- | --- | --- | | Nov 2025 | 530 | 5.7% | 5 | 180 | 1.9% | 6 | | Dec 2025 | 890 | 8.9% | 5 | 230 | 2.3% | 6 | | Jan 2026 | 650 | 6.1% | 5 | 210 | 2% | 6 | | Feb 2026 | 530 | 5.5% | 5 | 230 | 2.4% | 6 | | Mar 2026 | 550 | 5.1% | 6 | 570 | 5.2% | 5 | | Apr 2026 | 540 | 5.3% | 5 | 220 | 2.2% | 6 | | May 2026 | 530 | 4.9% | 5 | 250 | 2.3% | 6 | | Jun 2026 | 440 | 3.8% | 5 | 240 | 2.1% | 6 | | Jul 2026 | 480 | 4% | 5 | 350 | 2.9% | 6 | | Aug 2026 | 570 | 4.6% | 5 | 380 | 3.1% | 6 | | Sep 2026 | 500 | 3.7% | 5 | 300 | 2.2% | 6 | | Oct 2026 | 1.5K | 9.7% | 4 | 300 | 1.9% | 6 | ## How are Nexium’s and Rennie’s branded searches counted? Brandwave collects information about searches that people make online using Nexium’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. - **Nexium**: Measured on the search terms “nexium”, “nexium and gerd”, “nexium control”, “nexium drug”, “nexium omeprazole”, “nexium pills”, “nexium tablets”, “nexium v omeprazole” and “omeprazole v nexium”, 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. - [Nexium profile](/demand/nz/brands/nexium) - [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 Nexium or Rennie more popular in search? In October 2026, Nexium had more branded searches than Rennie among heartburn and indigestion brands in New Zealand. Nexium had about 1,520 branded searches, while Rennie had 300. Nexium made up 9.7% of all heartburn and indigestion brand searches we track, and Rennie accounted for 1.9%. ## Cite this page Brandwave. "Nexium vs Rennie: Which is more popular in New Zealand?". https://gobrandwave.com/demand/nz/compare/nexium-vs-rennie This page is also available as HTML at https://gobrandwave.com/demand/nz/compare/nexium-vs-rennie. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.