The efficacy and tolerability of an 8-day administration of intravenous and oral meloxicam: A comparison with intramuscular and oral diclofenac in patients with acute lumbago

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Abstract
In this controlled, randomized, parallel and open multicentre study, the efficacy and tolerability of a regimen comprising intravenous (i.v.) meloxicam followed by oral therapy was compared with a standard regimen of intramuscular (i.m.) diclofenac followed by oral dosing in patients with acute lumbago. Of a total of 183 patients, 92 were randomized to receive meloxicam 15mg i.v. on day I followed by 7 days oral treatment with one 15 mg tablet daily, and 91 patients received diclofenac 75 mg i.m. on day 1 followed by 7 days treatment with one 100 mg slow release tablet daily. Pain on movement and limitation of activities were assessed by patients and physicians using questionnaires. Meloxicam i.v. demonstrated a significantly faster median time of onset of analgesic action (30 minutes), compared with diclofenac i.m. (60 minutes). The reduction in pain during movement 30 minutes after injection was also significantly in favour of meloxicam. Assessments of global efficacy indicated that meloxicam was significantly better than diclofenac as rated by investigators (p = 0.02) and patients (p = 0.01). Moreover, the rating of investigators and patients for local and global tolerance was significantly in favour of meloxicam (p < 0.05) and improvements in the quality of life were almost significant (p = 0.053). Fewer adverse events, particularly of a gastrointestinal (GI) nature, occurred in the meloxicam group compared with the diclofenac group. This study therefore demonstrates that meloxicam 15mg i.v. followed by oral therapy is both efficacious and well tolerated in the treatment of acute lumbago, and compares favourably with the standard NSAID, diclofenac, in this indication.