Dexketoprofen/tramadol 25 mg/75 mg: randomised double-blind trial in moderate-to-severe acute pain after abdominal hysterectomy

Table 1 Treatment arms

Study arm	Single-dose phase (first dose)	Multiple-dose phase (subsequent six doses)
1	dexketoprofen/tramadol 25 mg/75 mg	dexketoprofen/tramadol 25 mg/75 mg
2	dexketoprofen 25 mg	dexketoprofen 25 mg
3	tramadol 100 mg	tramadol 100 mg
4	placebo	dexketoprofen/tramadol 25 mg/75 mg
5	placebo	dexketoprofen 25 mg
6	placebo	tramadol 100 mg

The study included a total of six treatment arms, with an imbalanced 3:3:3:1:1:1 allocation ratio

ISSN: 1471-2253