Mucinex vs Theraflu:Which is more popular?
In September 2026, Mucinex had more branded searches than Theraflu among cold and flu brands in the United States. Mucinex had about 450,000 branded searches, while Theraflu had 201,000. Mucinex made up 28.9% of all cold and flu brand searches we track, and Theraflu accounted for 12.9%. When we asked ChatGPT and Google AI Overviews about cold and flu brands, Mucinex appeared in four of the five answers and Theraflu in none.
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Top cold and flu brands in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, Mucinex was mentioned in four out of five: in two of the three ChatGPT answers and in both Google AI Overviews. Theraflu did not appear in any of the five answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
Mucinex4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Robitussin2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Delsym2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
NyQuil1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers- DayQuil1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Vicks1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
- Theraflu0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Zicam0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Alka-Seltzer Plus0 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
“What's the best cold medicine?”
Asked ChatGPT
“What's good for a stuffy nose?”
Asked ChatGPT
“What's the best cough medicine for adults?”
Searched Google, AI Overview
“cold medicine”
Searched Google, AI Overview
“best cold medicine”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in United States on October 27, 2026.
Is Mucinex or Theraflu more popular in search?
This chart shows how often people search Google for Mucinex and Theraflu by name. Each line represents a brand's share of searches for all nine cold and flu brands we track, month by month, from searches in United States.
Share of searches by month for Mucinex, Theraflu. The figures are in the table below the chart.
View monthly share of searches table
| Month | Mucinex | NyQuil | Robitussin | Theraflu | DayQuil | Vicks | Zicam | Delsym | Alka-Seltzer Plus |
|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 30.1% | 13.5% | 13.5% | 11% | 9% | 9% | 7.4% | 5% | 1.5% |
| Nov 2025 | 30.6% | 13.7% | 11.2% | 13.7% | 9.2% | 7.5% | 7.5% | 5% | 1.5% |
| Dec 2025 | 28.7% | 12.8% | 10.5% | 19.2% | 8.6% | 7% | 7% | 4.7% | 1.4% |
| Jan 2026 | 28% | 12.5% | 10.2% | 18.7% | 8.4% | 8.4% | 6.9% | 5.6% | 1.4% |
| Feb 2026 | 28% | 12.5% | 10.3% | 15.3% | 10.3% | 8.4% | 8.4% | 5.6% | 1.4% |
| Mar 2026 | 33.3% | 12.2% | 12.2% | 12.2% | 8.1% | 8.1% | 6.7% | 5.5% | 1.6% |
| Apr 2026 | 34.6% | 12.7% | 12.7% | 10.3% | 8.5% | 8.5% | 5.7% | 5.7% | 1.4% |
| May 2026 | 30.2% | 13.5% | 13.5% | 11% | 9.1% | 9.1% | 6.1% | 6.1% | 1.5% |
| Jun 2026 | 33.9% | 12.5% | 12.5% | 10.2% | 8.3% | 10.2% | 5.6% | 5.6% | 1.4% |
| Jul 2026 | 30.1% | 13.5% | 13.5% | 9.1% | 9.1% | 11.1% | 6.1% | 6.1% | 1.5% |
| Aug 2026 | 31.3% | 14% | 11.4% | 11.4% | 9.4% | 9.4% | 6.3% | 5.1% | 1.5% |
| Sep 2026 | 28.9% | 12.9% | 12.9% | 12.9% | 10.6% | 8.7% | 7.1% | 4.7% | 1.4% |
How has the Mucinex and Theraflu comparison changed over the last 12 months?
3 findings
- Mucinex was ahead of Theraflu in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, Mucinex’s share of searches among cold and flu brands in the United States moved from 30.1% to 28.9%, and its estimated monthly branded searches moved from 368K to 450K.
- Across the 12 months ending September 2026, Theraflu’s share of searches among cold and flu brands in the United States moved from 11% to 12.9%, and its estimated monthly branded searches moved from 135K to 201K.
How did search popularity change for United States cold and flu brands in September 2026?
2 changes
In September 2026, Theraflu gained share of searches among cold and flu brands in the United States, from 11.4% to 12.9%.
In September 2026, Mucinex lost share of searches among cold and flu brands in the United States, from 31.3% to 28.9%.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using Mucinex’s and Theraflu’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.
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