| Category | Number of sites n (%); total, n = 32 |
|---|---|
| Site without any physical address | 6 (18.8%) |
| Site without contact number | 13 (40.0%) |
| Site without purchasing amount restriction | 14 (43.8%) |
| Site without prescription requirement | 32 (100.0%) |
| Site selling 45 mg pioglitazone (not approved in Japan) | 4 (12.5%) |
| Site delivering a different amount of tablets from that ordered | 4 (12.5%) |