Top 22 Medicines in South Korea
This curated ranking covers the 22 largest medicines in South Korea, ordered by estimated audience size from Rascasse's anonymized search-behavior signals. Merck & Co., Novo Nordisk and Amway lead the list with a combined estimated audience of 161,716 people. Across all 22 entries the average audience size is 15,053, and the largest, Merck & Co., reaches around 76,353 people in South Korea. Audience size is the estimated number of unique people in South Korea who actively engage with each medicine, derived from search demand signals. Rankings reflect search-behavior signals collected across South Korea and are refreshed weekly.
Ranking
| Rank | Name | Audience size | Country share | Subtype | Category |
|---|---|---|---|---|---|
| 1 |  Merck & Co. |
76,353 | 1.6% | Medicine | Health |
| 2 |  Novo Nordisk |
49,301 | 0.5% | Medicine | Health |
| 3 |  Amway |
36,062 | 0.3% | Medicine | Health |
| 4 |  GlaxoSmithKline |
27,635 | 0.6% | Medicine | Health |
| 5 |  Herbalife |
24,118 | 0.1% | Medicine | Health |
| 6 |  Bayer |
21,413 | 0.2% | Medicine | Health |
| 7 |  Pfizer |
20,356 | 0.1% | Medicine | Health |
| 8 |  BASF |
13,620 | 0.3% | Medicine | Health |
| 9 |  Abbott Laboratories |
13,277 | 0.4% | Medicine | Health |
| 10 |  Bristol-Myers Squibb |
8,795 | 0.4% | Medicine | Health |
| 11 |  Sanofi |
7,933 | 0.1% | Medicine | Health |
| 12 |  Naloxone |
7,590 | 0.8% | Medicine | Health |
| 13 |  Novartis |
7,285 | 0.1% | Medicine | Health |
| 14 |  Dr. Scholl's |
5,102 | 0.2% | Medicine | Health |
| 15 |  Boehringer Ingelheim |
5,100 | 0.1% | Medicine | Health |
| 16 |  Polydimethylsiloxane |
4,850 | 4.5% | Medicine | Health |
| 17 |  Doppelherz |
1,079 | 0.1% | Medicine | Health |
| 18 |  Shaklee |
527 | 0.1% | Medicine | Health |
| 19 |  Varilux |
349 | 0.1% | Medicine | Health |
| 20 |  ThermaCare |
275 | 0.1% | Medicine | Health |
| 21 |  Meridol |
133 | 0.0% | Medicine | Health |
| 22 |  Bausch & Lomb |
34 | 0.0% | Medicine | Health |
Frequently asked questions
How is this Top 22 list compiled?
Rascasse aggregates anonymized search-behavior signals across South Korea and ranks each medicine by its estimated audience size. Only entries with at least 5 measured entities are listed.
How often is the list updated?
The ranking is refreshed weekly from the latest search-behavior data and re-published as a static page.
What is the largest medicine in South Korea?
Merck & Co. currently leads with an estimated audience of 76,353 people in South Korea.
Methodology
Audience sizes are estimated from anonymized search-behavior signals across South Korea. Lists below 5 entries are not published. See methodology for full details.