Antibacterials Derived From the Plants of Lamiaceae: Phytochemical Framework and Mechanistic Insights

Antibiotic resistance is expeditiously reducing the effectiveness of standard therapies, playing a significant role in the increase in drug-resistant microbes and causing a global health emergency. Increasing alarm calls for innovative and better safety features, a critical priority. Medicinal plants, specifically members of the Lamiaceae family, have gained attention due to the presence of diverse essential oils, flavonoids and phenolic acids which exhibit antioxidant, and anti-inflammatory activity and antibacterial potential. The antibacterial properties of Lamiaceae species are reviewed in this paper, with particular attention paid to their bioactive components, modes of action against bacterial pathogens, and synergistic effects with conventional antibiotics. These bioactive components work in a variety of ways, disrupting microbial membranes, inhibiting enzyme activity, and preventing the formation of biofilms. Thymol, carvacrol, and rosmarinic acid have been found to exhibit significant synergism with antibiotics like chloramphenicol, gentamicin, ciprofloxacin, and vancomycin, against multidrug-resistant pathogens like Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus and Salmonella spp. Although these results are encouraging, clinical verification and additional research are needed to maximize the therapeutic potential of Lamiaceae-based combination therapies in the battle against antibiotic resistance.