Which otc medicines brands do AI assistants recommend in South Korea? Q4 2026
In South Korea, AI assistants most often recommend Tylenol, Zyrtec and Blackmores for otc medicines. Tylenol is named by 4 of 5 assistants.
What the data says
Tylenol (Kenvue) is the otc medicines brand AI assistants recommend most in South Korea, taking 8.2% of all recommendation points across 5 assistants. Zyrtec follows with 5.2% and Blackmores is third with 4.6%.
Tylenol's lead over Zyrtec is 3 points, a clear advantage in how AI shortlists the category.
ChatGPT and Gemini put Tylenol first, while Claude favours Melatonin, DeepSeek favours Panadol and Grok favours Blackmores.
The top five brands hold 26% of recommendations out of 76 brands named in total, leaving room for challengers to break into AI shortlists.
| # | Brand | Owner | AI share | ChatGPT | Claude | DeepSeek | Gemini | Grok |
|---|---|---|---|---|---|---|---|---|
| 1 | Tylenol | Kenvue | 8.2% | 60 | – | 50 | 35 | 60 |
| 2 | Zyrtec | Kenvue | 5.2% | 35 | – | 35 | 35 | 25 |
| 3 | Blackmores | Blackmores | 4.6% | 20 | – | – | 12 | 83 |
| 4 | Claritin | Bayer | 4.2% | 20 | – | 25 | 25 | 35 |
| 5 | Panpyrin | Dong-A | 3.9% | 12 | – | – | 25 | 60 |
| 6 | Gaviscon | Reckitt | 3.7% | – | 25 | 35 | 12 | 20 |
| 7 | Melatonin | Generic | 3.3% | – | 35 | 35 | – | 12 |
| 8 | Swisse | H&H Group | 2.9% | 12 | – | – | 35 | 25 |
| 9 | Whal Myung Su | Dong-A | 2.8% | 35 | – | – | 35 | – |
| 10 | Panadol | Haleon | 2.8% | – | – | 70 | – | – |
| 11 | Allegra | Sanofi | 2.6% | 25 | – | – | 20 | 20 |
| 12 | Ibuprofen | Generic | 2.1% | 20 | 25 | 8 | – | – |
| 13 | Advil | Haleon | 2.1% | – | – | 20 | 12 | 20 |
| 14 | Smecta | Ipsen | 1.9% | – | – | 12 | – | 35 |
| 15 | Vicks | Procter & Gamble | 1.8% | – | 25 | – | – | 20 |
| 16 | GNC | GNC | 1.8% | – | – | 12 | 25 | 8 |
| 17 | Strepsils | Reckitt | 1.7% | – | 35 | 8 | – | – |
| 18 | Pancold | Dong Wha Pharm | 1.4% | 35 | – | – | – | – |
| 19 | CJ | CJ Group | 1.4% | 35 | – | – | – | – |
| 20 | Pancol-S | Dong-A | 1.4% | – | – | – | 35 | – |
Questions about AI otc medicines recommendations
- Which otc medicines brand does ChatGPT recommend most in South Korea?
- ChatGPT recommends Tylenol most often for otc medicines in South Korea. Across all assistants, Tylenol leads with 8.2% of recommendations.
- Which otc medicines brand is improving fastest in South Korea?
- Whal Myung Su has the strongest momentum among challengers: AI names it first in 2 of 2 answers where it appears, while holding 2.8% share. This is the first Q4 2026 reading; change over time will be shown from the next update.
- How is the ranking calculated?
- We ask each AI assistant the questions shoppers ask in each category and market, record the top five brands it names, and give 35, 25, 20, 12 and 8 points for positions one to five. Share is a brand's points divided by all points awarded.
OTC Medicines: AI rankings by country
Covers: Allergy Management, Cough & Cold Relief, Digestive Aids, Pain Relief, Sleep Support.
Method: each AI assistant is asked the shopper questions for every segment in the category and market; the top five brands named score 35, 25, 20, 12 and 8 points. Share is a brand's points divided by all points awarded. Rankings reflect AI answers, not sales.
See how your brand ranks in AI answers.
Get a free report: where AI names you, where it leaves you out, and the product page, pack and message fixes that change it.