Subjects and methods. The follow-up included 66 patients (34 women and 32 men) who took NSAIDs for emergent low back pain. Results. The findings may suggest that etoricoxib-based therapy is highly effective and relatively safe for the management of acute nonspecific backache in patients with comorbidity. The important feature is the established tendency towards BP destabilization in patients with chronic cerebrovascular diseases treated with NSAIDs (diclofenac, meloxicam, to a lesser extent, nimesulide). After completion of drug intake for 14 days or longer, acute cerebral circulatory disorder and acute cerebrovascular event developed within 4.5 months in 3 and 2 patients, respectively. Conclusion. Thus, the spectrum of possible adverse cardiovascular effects of NSAIDs is rather broad. It is advisable to identify two major groups of NSAID-associated complications: 1) destabilized hypertension; 2) cardiovascular and cerebrovascular events.