Study to evaluate the efficacy and safety of the Dexketoprofen / Vitamin B combination versus dexketoprofen for the management of acute pain secondary to post-traumatic cervical sprain grade I-II of the Quebec scale, evaluated by means of the Visual Analogue Scale (VAS). To compare the degree of disability due to neck pain measured through the Northwick Park Neck Pain Questionnaire in Spanish version on days 3, 5, and 7 compare to its baseline measurement between the treatment groups. Compare the proportion of subjects requiring rescue medication during the study between treatment groups. Describe the frequency and intensity of adverse events presented during the study.
Phase IIIb, multicenter, prospective, randomized, double-blind study to evaluate the fixed combination of Desketoprofen / Vitamin B in the management of acute pain in patients with cervical sprain grade I-II of the Quebec scale.