Brandwave

Gaviscon vs Mylanta:Which is more popular in New Zealand?

In October 2026, Gaviscon had more branded searches than Mylanta among heartburn and indigestion brands in New Zealand. Gaviscon had about 8,210 branded searches, while Mylanta had 1,170. Gaviscon made up 52.2% of all heartburn and indigestion brand searches we track, and Mylanta accounted for 7.4%. When we asked ChatGPT and Google AI Overviews about heartburn and indigestion brands, Mylanta appeared in all five answers and Gaviscon in four. Gaviscon was mentioned before Mylanta in every answer.

Among heartburn and indigestion brands in New Zealand in October 2026

Who do people search for more?

Gaviscon, about 7 searches for every 1 for Mylanta

Gaviscon 8.2K searchesMylanta 1.2K searches

Who does AI mention more?

Mylanta, mentioned in every answer we collected

Mylanta in 5 of 5Gaviscon in 4 of 5

Who does AI recommend more?

Gaviscon, named ahead of Mylanta in every answer

Gaviscon first in 4Mylanta never first

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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. Gaviscon was mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. Gaviscon was listed before Mylanta in every answer.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Gaviscon1st
  2. Quick-Eze2nd
  3. Mylanta3rd
  4. Losec4th
  5. Nexium–
  6. Rennie–
  7. Eno–

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

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in New Zealand on October 21, 2026.

Is Gaviscon or Mylanta more popular in search?

This chart shows how often people search Google for Gaviscon and Mylanta 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.

Gaviscon and Mylanta among heartburn and indigestion brands in New Zealand, by month

Share of searches by month for Gaviscon, Mylanta. The figures are in the table below the chart.

View monthly share of searches table
MonthGavisconQuick-EzeLosecNexiumMylantaRennieEno
Nov 202553.7%13.2%12.4%5.7%11.7%1.9%1.4%
Dec 202551.7%15.6%11.4%8.9%9%2.3%1.1%
Jan 202650.3%17.9%12.4%6.1%9.8%2%1.5%
Feb 202654.8%13%12.1%5.5%11.1%2.4%1.1%
Mar 202652.4%14.2%11.9%5.1%10%5.2%1.2%
Apr 202653.5%14.8%13.1%5.3%10.1%2.2%0.98%
May 202653.7%17.3%10.7%4.9%10%2.3%1.1%
Jun 202657.3%16.7%10%3.8%9.2%2.1%0.87%
Jul 202656%15.8%10.7%4%9.5%2.9%1.2%
Aug 202654.5%18.2%9.2%4.6%9.6%3.1%0.8%
Sep 202658.9%16.4%9.3%3.7%8.9%2.2%0.66%
Oct 202652.2%17.7%10.4%9.7%7.4%1.9%0.76%

How has branded search for Gaviscon and Mylanta changed in New Zealand over the last 12 months?

3 findings

How did search popularity change for New Zealand heartburn and indigestion brands in October 2026?

3 changes
  1. In October 2026, Nexium overtook Mylanta to rank 4th among heartburn and indigestion brands in New Zealand, with 9.7% of the searches.

  2. In October 2026, Gaviscon lost share of searches among heartburn and indigestion brands in New Zealand, from 58.9% to 52.2%.

  3. In October 2026, Mylanta lost share of searches among heartburn and indigestion brands in New Zealand, from 8.9% to 7.4%.

How are Gaviscon’s and Mylanta’s branded searches counted?

20 search terms

Brandwave collects information about searches that people make online using Gaviscon’s and Mylanta’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

Mylanta

6 branded search terms

  • mylanta
  • mylanta antacid
  • mylanta heartburn
  • mylanta indigestion
  • mylanta liquid
  • mylanta reflux

How the Brand Demand Index is measured

Other head-to-heads among heartburn and indigestion brands

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