Which otc medicines brands do AI assistants recommend in Thailand? Q4 2026
In Thailand, AI assistants most often recommend Panadol, Decolgen and Claritin for otc medicines. Panadol is named by 5 of 5 assistants.
What the data says
Panadol (Haleon) is the otc medicines brand AI assistants recommend most in Thailand, taking 9.8% of all recommendation points across 5 assistants. Decolgen follows with 6.6% and Claritin is third with 6%.
Panadol's lead over Decolgen is 3.2 points, a clear advantage in how AI shortlists the category.
ChatGPT, Claude, DeepSeek and Grok put Panadol first, while Gemini favours Zyrtec.
The top five brands hold 33% of recommendations out of 61 brands named in total, leaving room for challengers to break into AI shortlists.
| # | Brand | Owner | AI share | ChatGPT | Claude | DeepSeek | Gemini | Grok |
|---|---|---|---|---|---|---|---|---|
| 1 | Panadol | Haleon | 9.8% | 55 | 55 | 55 | 20 | 60 |
| 2 | Decolgen | United Laboratories | 6.6% | 25 | 35 | 45 | 25 | 35 |
| 3 | Claritin | Bayer | 6% | 25 | 35 | 35 | 20 | 35 |
| 4 | Blackmores | Blackmores | 5.8% | 35 | 35 | 8 | 25 | 41 |
| 5 | Tiffy | T.Man Pharma | 5.2% | 35 | 25 | 35 | 35 | – |
| 6 | Zyrtec | Kenvue | 5% | 20 | 25 | 20 | 35 | 25 |
| 7 | Telfast | Sanofi | 5% | 35 | 20 | 25 | 25 | 20 |
| 8 | Smecta | Ipsen | 3.9% | 12 | 25 | 25 | – | 35 |
| 9 | Mega We Care | Mega Lifesciences | 3.6% | 25 | – | – | 12 | 52 |
| 10 | Sara | PT Kimia Farma | 2.9% | 37 | – | – | 35 | – |
| 11 | Gaviscon | Reckitt | 2.7% | – | 8 | 35 | 25 | – |
| 12 | Tylenol | Kenvue | 2.3% | 20 | 12 | – | 25 | – |
| 13 | Strepsils | Reckitt | 2.2% | – | 12 | 12 | 12 | 20 |
| 14 | Nature's Way | Schwabe Group | 2.2% | – | 20 | – | – | 35 |
| 15 | Natrol | Aurobindo Pharma | 2.2% | 8 | 12 | – | 35 | – |
| 16 | Eno | Haleon | 2.2% | – | 35 | – | 20 | – |
| 17 | Melatonin | Generic | 1.9% | – | – | 35 | – | 12 |
| 18 | Swisse | H&H Group | 1.8% | 20 | 25 | – | – | – |
| 19 | Air-X | United Laboratories | 1.7% | 8 | – | – | 35 | – |
| 20 | Brand’s | Suntory | 1.4% | 35 | – | – | – | – |
Questions about AI otc medicines recommendations
- Which otc medicines brand does ChatGPT recommend most in Thailand?
- ChatGPT recommends Panadol most often for otc medicines in Thailand. Across all assistants, Panadol leads with 9.8% of recommendations.
- Which otc medicines brand is improving fastest in Thailand?
- Tiffy has the strongest momentum among challengers: AI names it first in 3 of 4 answers where it appears, while holding 5.2% 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.
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