--- title: "Delsym vs Mucinex: Which is searched more in the United States?" description: "Is Delsym or Mucinex more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Cold and flu brands set in the United States. 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/us/compare/delsym-vs-mucinex" publisher: "Brandwave" --- # Delsym vs Mucinex: Which is searched more in the United States? Is Delsym or Mucinex more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Cold and flu brands set in the United States. 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**: Delsym and Mucinex - **Competitive set**: Cold and flu brands - **Market**: United States - **Month measured**: Sep 2026 - **Delsym Share of Search**: 4.7% - **Mucinex Share of Search**: 28.9% ## Is Delsym or Mucinex more popular in search? - In September 2026, Mucinex had more branded searches than Delsym among cold and flu brands in the United States. Mucinex had about 450,000 branded searches, while Delsym had 74,000. Mucinex made up 28.9% of all cold and flu brand searches we track, and Delsym accounted for 4.7%. - Mucinex was ahead of Delsym in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, Delsym’s share of searches among cold and flu brands in the United States moved from 5% to 4.7%, and its estimated monthly branded searches moved from 60.5K to 74K. - 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. ## 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. Delsym was mentioned in two out of five: in one of the three ChatGPT answers and in one of the two Google AI Overviews. Too few answers listed options to rank the brands, so only mentions are counted. | Brand | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | | Mucinex | 2 of 3 | 2 of 2 | 4 of 5 | | NyQuil | 0 of 3 | 1 of 2 | 1 of 5 | | Robitussin | 1 of 3 | 1 of 2 | 2 of 5 | | Theraflu | 0 of 3 | 0 of 2 | 0 of 5 | | DayQuil | 0 of 3 | 1 of 2 | 1 of 5 | | Vicks | 0 of 3 | 1 of 2 | 1 of 5 | | Zicam | 0 of 3 | 0 of 2 | 0 of 5 | | Delsym | 1 of 3 | 1 of 2 | 2 of 5 | | Alka-Seltzer Plus | 0 of 3 | 0 of 2 | 0 of 5 | ## Every AI answer about cold and flu brands - Asked ChatGPT "What's the best cold medicine?": 1. Mucinex - Asked ChatGPT "What's good for a stuffy nose?": named none of the brands we track - Asked ChatGPT "What's the best cough medicine for adults?": 1. Delsym, 2. Robitussin, 3. Mucinex - Searched Google, AI Overview "cold medicine": 1. Mucinex - Searched Google, AI Overview "best cold medicine": 1. Vicks, 2. DayQuil, 3. NyQuil, 4. Mucinex, 5. Delsym, 6. Robitussin Not named in any answer: Theraflu, Zicam and Alka-Seltzer Plus. Brands are listed in the order each answer named them. The answers were collected in United States on October 27, 2026. ## How did search popularity change for United States cold and flu brands in September 2026? - In September 2026, Mucinex lost share of searches among cold and flu brands in the United States, from 31.3% to 28.9%. - Estimated monthly branded searches for Delsym in the United States rose 22.3% over 12 measured months, from 60.5K to 74K in September 2026. ## Month by month | Month | Delsym estimated searches | Delsym Share of Search | Delsym rank | Mucinex estimated searches | Mucinex Share of Search | Mucinex rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 60.5K | 5% | 8 | 368K | 30.1% | 1 | | Nov 2025 | 74K | 5% | 8 | 450K | 30.6% | 1 | | Dec 2025 | 110K | 4.7% | 8 | 673K | 28.7% | 1 | | Jan 2026 | 110K | 5.6% | 8 | 550K | 28% | 1 | | Feb 2026 | 90.5K | 5.6% | 8 | 450K | 28% | 1 | | Mar 2026 | 74K | 5.5% | 8 | 450K | 33.3% | 1 | | Apr 2026 | 60.5K | 5.7% | 7 | 368K | 34.6% | 1 | | May 2026 | 60.5K | 6.1% | 7 | 301K | 30.2% | 1 | | Jun 2026 | 40.5K | 5.6% | 7 | 246K | 33.9% | 1 | | Jul 2026 | 40.5K | 6.1% | 7 | 201K | 30.1% | 1 | | Aug 2026 | 49.5K | 5.1% | 8 | 301K | 31.3% | 1 | | Sep 2026 | 74K | 4.7% | 8 | 450K | 28.9% | 1 | ## How each brand is measured Brandwave collects information about searches that people make online using Delsym’s and Mucinex’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. - **Delsym**: Measured on the search term “delsym”. - **Mucinex**: Measured on the search term “mucinex”. - [Delsym profile](/demand/us/brands/delsym) - [Mucinex profile](/demand/us/brands/mucinex) - [All cold and flu brands in the United States](/demand/us/categories/us-cold-and-flu-brands): The set both shares are measured inside, 9 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 Delsym or Mucinex more popular in search? In September 2026, Mucinex had more branded searches than Delsym among cold and flu brands in the United States. Mucinex had about 450,000 branded searches, while Delsym had 74,000. Mucinex made up 28.9% of all cold and flu brand searches we track, and Delsym accounted for 4.7%. ## Cite this page Brandwave. "Delsym vs Mucinex: Which is searched more in the United States?". https://gobrandwave.com/demand/us/compare/delsym-vs-mucinex This page is also available as HTML at https://gobrandwave.com/demand/us/compare/delsym-vs-mucinex. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.