Table 3

Predefined categories of drug-related problems in pain therapy

Category of drug-related problemsControl group (n/total; (%)*)Medication management group (n/total; (%)*)p Value
Pharmacotherapeutic drug-related problems
 Non-opioid in inappropriate combination (eg, two different NSAIDs)14/406 (3)**18/407 (4)**0.475
 Opioid in inappropriate combination (eg, WHO-II with WHO-III opioid)139/240 (58)***110/227 (49)***0.041
 Opioid without non-opioid (although indicated)11/240 (5)***16/227 (7)***0.254
 Overdose (eg, exceeding dose limits of paracetamol)15/627 (2)8/654 (1)0.115
 Inappropriate administration instruction (eg, dosing interval differs from SmPC)14/627 (2)16/654 (2)0.800
 Missing or inappropriate supportive therapy (eg, missing laxatives)82/627 (13)70/654 (11)0.189
 Analgesic in inappropriate dosage form (eg, opioids with sustained release on demand or immediate release in fixed dose)13/627 (2)14/654 (2)0.933
 Analgesics in problematic ‘pain cocktails’ (eg, of tramadol, dipyrone and metoclopramide prescribed in a fixed but not specified way as ‘pain cocktail’)68/627 (11)42/654 (6)0.005
Drug–drug interactions84/627 (13)96/654 (15)0.509
 Administrative drug-related problems
 Duplicate prescriptions of analgesics32/627 (5)32/654 (5)0.863
 Prescription of analgesic with incomplete information concerning single dose165/627 (26)70/654 (11)<0.001
 Prescription of analgesic with incomplete information concerning dosage instruction (eg, dosing interval)185/627 (30)126/654 (19)<0.001
 Prescription of analgesic with incomplete information concerning daily dose204/627 (33)131/654 (20)<0.001
 Prescription of analgesic with incomplete information concerning drug name or dosage form81/627 (13)47/654 (7)<0.001
  • Based on the total number *) of all analgesic prescriptions, if not otherwise specified; **) of non-opioid analgesic prescriptions; ***) of opioid analgesic prescriptions.

  • NSAIDs, non-steroidal anti-inflammatory drugs; SmPC, Summary of Product Characteristics.