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Year : 2020  |  Volume : 22  |  Issue : 1  |  Page : 35-39

Prospective, open-label, randomized, parallel group, comparative clinical study of two topical formulations of diclofenac diethylamine in the treatment of acute painful musculoskeletal conditions

1 CMO, HQWNC & Professor, Department of Orthopedics, INHS Asvini & CMO, HQWNC, Mumbai, Maharashtra, India
2 Department of Orthopedics, IFH Level III, MONUSCO, DR Congo
3 Department of Orthopedics, Military Hospital, Secunderabad, Telengana, India

Correspondence Address:
Major Vivek Mathew Philip
Department of Orthopedics, Indian Field Hospital Level III, MONUSCO
DR Congo
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jmms.jmms_58_19

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Background: Oral nonsteroidal anti-inflammatory drugs have been used in the management of musculoskeletal pain due to inconsistent skin penetration of topical formulations. The quick penetrating solution of diclofenac is a novel topical solution of diclofenac diethylamine (4.64%), which has increased skin penetration. The present study was designed to compare the efficacy and safety of quick penetrating solution of diclofenac with diclofenac gel in patients with acute musculoskeletal pain. Materials and Methods: A randomized controlled clinical trial was conducted in 140 patients suffering from acute musculoskeletal pain who were randomized to receive diclofenac diethylamine 4.64% w/v topical solution (Group A) or diclofenac diethylamine 1.16% gel (Group B). The pain intensity difference (PID) between patients in both groups at rest and during movement of the affected area on day 3 and day 7 after injury was noted using the visual analog scale (VAS) and were compared with the baseline. A comparison of the requirement of oral rescue analgesics and adverse effects in both groups was also carried out. Results: The PID in VAS from baseline was significantly better in patients in Group A than patients in Group B on days 3 (3.74 and 2.42;P< 0.05) and 7 (6.8 and 5.54,P< 0.05), respectively, at rest. The PID in VAS from baseline was significantly better in patients in Group A than patients in Group B on day 3 (4.05 and 2.65;P< 0.05) and day 7 (7.34 and 6.00,P< 0.05), respectively, during movement. The number of patients requiring rescue medications were significantly lower in Group A (n = 1) compared to Group B (n = 16) (P < 0.05). Conclusions: Diclofenac diethylamine 4.64% w/v is more effective in relieving acute pain in painful musculoskeletal conditions in comparison with diclofenac diethylamine topical gel 1.16% w/w with lesser requirement of rescue analgesics and minimal adverse effects.

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