[Antibacterial activity of thymol, carvacrol and cinnamaldehyde alone or in combination]

The antimicrobial activity of thymol, carvacrol and cinnamaldehyde was tested by several methods on bacteria involved in upper respiratory tract infections. Their combinations were investigated too. The broad spectrum of activity and the synergistic effect observed with some combinations (specially thymol and carvacrol) could allowed the use of the three compounds alone or, like thymol an carvacrol, combined during the treatment of respiratory infections.