Brandwave

NyQuil vs Theraflu:Which is more popular?

In September 2026, NyQuil and Theraflu were level in searches among cold and flu brands in the United States, with an estimated 201K branded searches each, at 12.9% of the total each. When we asked ChatGPT and Google AI Overviews about cold and flu brands, NyQuil appeared in one of the five answers and Theraflu in none.

Among cold and flu brands in the United States in September 2026

Who do people search for more?

NyQuil and Theraflu are searched for about as often as each other.

NyQuil 201K searchesTheraflu 201K searches

Who does AI mention more?

NyQuil, mentioned in 1 of 5 answers, Theraflu in 0

NyQuil in 1 of 5Theraflu in 0 of 5

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Top cold and flu brands in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, NyQuil was mentioned in one out of five: not in any of the three ChatGPT answers, but in one of the two 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

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 NyQuil or Theraflu more popular in search?

This chart shows how often people search Google for NyQuil 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.

NyQuil and Theraflu among cold and flu brands in the United States, by month

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

View monthly share of searches table
MonthMucinexNyQuilRobitussinTherafluDayQuilVicksZicamDelsymAlka-Seltzer Plus
Oct 202530.1%13.5%13.5%11%9%9%7.4%5%1.5%
Nov 202530.6%13.7%11.2%13.7%9.2%7.5%7.5%5%1.5%
Dec 202528.7%12.8%10.5%19.2%8.6%7%7%4.7%1.4%
Jan 202628%12.5%10.2%18.7%8.4%8.4%6.9%5.6%1.4%
Feb 202628%12.5%10.3%15.3%10.3%8.4%8.4%5.6%1.4%
Mar 202633.3%12.2%12.2%12.2%8.1%8.1%6.7%5.5%1.6%
Apr 202634.6%12.7%12.7%10.3%8.5%8.5%5.7%5.7%1.4%
May 202630.2%13.5%13.5%11%9.1%9.1%6.1%6.1%1.5%
Jun 202633.9%12.5%12.5%10.2%8.3%10.2%5.6%5.6%1.4%
Jul 202630.1%13.5%13.5%9.1%9.1%11.1%6.1%6.1%1.5%
Aug 202631.3%14%11.4%11.4%9.4%9.4%6.3%5.1%1.5%
Sep 202628.9%12.9%12.9%12.9%10.6%8.7%7.1%4.7%1.4%

How has the NyQuil and Theraflu comparison changed over the last 12 months?

3 findings
  • The lead changed hands 2 times in the 12 months ending September 2026: Theraflu took it in December 2025, NyQuil took it in April 2026.
  • Across the 12 months ending September 2026, NyQuil’s share of searches among cold and flu brands in the United States moved from 13.5% to 12.9%, and its estimated monthly branded searches moved from 165K to 201K.
  • 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
  1. In September 2026, Theraflu gained share of searches among cold and flu brands in the United States, from 11.4% to 12.9%.

  2. In September 2026, NyQuil lost share of searches among cold and flu brands in the United States, from 14% to 12.9%.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using NyQuil’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.

NyQuil

1 branded search term

  • nyquil

Theraflu

1 branded search term

  • theraflu

How the Brand Demand Index is measured

Other head-to-heads among cold and flu brands

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