- Patients with cancer pain receiving any of the following treatments constantly for at least 3days before the treatment period :(1)Morphine preparations equivalent to less than 45 mg/day of oral morphine (or less than 30 mg/day of suppositories, or less than 15 mg/day of injectable preparations), (2)oral oxycodone preparations equivalent to less than 30 mg/day, (3)Fentanyl citrate injectable solution equivalent to less than 0.3 mg/day