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WHO Step II analgesics used during Week -1 (safety population)
| WHO Step II analgesic, n (%) | Total (n = 200) |
|---|---|
| Tramadol | 17 (8.5) |
| Codeine, paracetamol | 15 (7.5) |
| Paracetamol, tramadol | 13 (6.5) |
| Tilidine, naloxone | 5 (2.5) |
| Dextropropoxyphene, paracetamol | 5 (2.5) |
| Caffeine, papaver somniferum latex, paracetamol | 2 (1.0) |
| Other analgesics and antipyretics | 2 (1.0) |
Abbreviation: WHO, World Health Organization.
