Demazin vs Lemsip:Which is more popular?
In September 2026, Lemsip had more branded searches than Demazin among cold and flu brands in New Zealand. Lemsip had about 3,840 branded searches, while Demazin had 900. Lemsip made up 14.2% of all cold and flu brand searches we track, and Demazin accounted for 3.3%. When we asked ChatGPT and Google AI Overviews about cold and flu brands, Lemsip appeared in two of the five answers and Demazin in one. Lemsip was mentioned before Demazin in two out of three answers.
Who do people search for more?
Lemsip, about 4 searches for every 1 for Demazin
Who does AI mention more?
Lemsip, mentioned in 2 of 5 answers, Demazin in 1
Who does AI recommend more?
Lemsip, named ahead of Demazin in 2 of 3 answers
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Top cold and flu brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Lemsip was mentioned in two out of five: in two of the three ChatGPT answers, but not in either of the two Google AI Overviews. Demazin was mentioned in one out of five: not in any of the three ChatGPT answers, but in one of the two Google AI Overviews. Lemsip was listed before Demazin in two out of three 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.
Codral3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Sudafed2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers- Lemsip2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Demazin1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Difflam0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Strepsils0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Vicks0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers- Coldrex0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about cold and flu brands
5 answers
Asked ChatGPT
“Which cold and flu brand should I buy in New Zealand?”
Asked ChatGPT
“What are the best cold and flu brands in New Zealand?”
Asked ChatGPT
“What's the best cold and flu brand in New Zealand for blocked nose?”
Searched Google, AI Overview
“cold and flu medicine”
Searched Google, AI Overview
“sore throat relief”
Brands are shown in the order each answer named them. The survey took place in New Zealand on October 20, 2026.
Is Demazin or Lemsip more popular in search?
This chart shows how often people search Google for Demazin and Lemsip by name. Each line represents a brand's share of searches for all eight cold and flu brands we track, month by month, from searches in New Zealand.
Share of searches by month for Lemsip, Demazin. The figures are in the table below the chart.
View monthly share of searches table
| Month | Sudafed | Difflam | Codral | Strepsils | Lemsip | Vicks | Demazin | Coldrex |
|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 23.6% | 16.7% | 16.4% | 15.7% | 12% | 12.4% | 2.5% | 0.7% |
| Nov 2025 | 21.8% | 19.1% | 15.2% | 14.2% | 12.5% | 13.9% | 2.9% | 0.39% |
| Dec 2025 | 21.7% | 20.3% | 14.7% | 14.8% | 11.2% | 14.3% | 2.5% | 0.57% |
| Jan 2026 | 21.5% | 18.4% | 14% | 16.4% | 12.2% | 14.5% | 2.5% | 0.48% |
| Feb 2026 | 20.7% | 15.7% | 14.9% | 16.2% | 15.1% | 14.6% | 2.3% | 0.54% |
| Mar 2026 | 21% | 15.3% | 16.3% | 17.1% | 15.6% | 11.8% | 2.4% | 0.52% |
| Apr 2026 | 21.4% | 15.8% | 19.7% | 13.7% | 13% | 13.1% | 2.6% | 0.62% |
| May 2026 | 21.2% | 13.4% | 18.8% | 13.8% | 15.4% | 13.9% | 3% | 0.59% |
| Jun 2026 | 20.4% | 14.3% | 19.4% | 13.6% | 15.3% | 13.6% | 2.9% | 0.49% |
| Jul 2026 | 20.3% | 14.6% | 19.2% | 13.5% | 15.6% | 13.5% | 2.8% | 0.55% |
| Aug 2026 | 18.6% | 13.7% | 17.7% | 15.2% | 17.1% | 14.2% | 3% | 0.44% |
| Sep 2026 | 18.9% | 18.6% | 17.1% | 15.7% | 14.2% | 11.7% | 3.3% | 0.52% |
How has the Demazin and Lemsip comparison changed over the last 12 months?
3 findings
- Lemsip was ahead of Demazin in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Demazin’s share of searches among cold and flu brands in New Zealand moved from 2.5% to 3.3%, and its estimated monthly branded searches moved from 430 to 900.
- Across the 12 months ending September 2026, Lemsip’s share of searches among cold and flu brands in New Zealand moved from 12% to 14.2%, and its estimated monthly branded searches moved from 2.1K to 3.8K.
How did search popularity change for New Zealand cold and flu brands in September 2026?
3 changes
In September 2026, Difflam overtook Codral and 3 others to rank 2nd among cold and flu brands in New Zealand, with 18.6% of the searches.
In September 2026, Lemsip lost share of searches among cold and flu brands in New Zealand, from 17.1% to 14.2%.
Estimated monthly branded searches for Demazin in New Zealand rose 109.3% over 12 measured months, from 430 to 900 in September 2026.
How are branded searches counted?
18 search terms
Brandwave collects information about searches that people make online using Demazin’s and Lemsip’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.
Demazin
6 branded search terms
- demazin
- demazin nasal decongestant
- demazin nasal spray
- demazin night
- demazin patches
- demazin spray
Lemsip
12 branded search terms
- lemsip
- lemsip capsules
- lemsip cough
- lemsip day night
- lemsip decongestant
- lemsip lozenges
- lemsip max
- lemsip max decongestant
- lemsip pregnant
- lemsip sachets
- lemsip sore throat
- lemsip woolies
Other head-to-heads among cold and flu brands
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