A Review on Analgesic Properties of Herbal Extracts

Herbal extracts have long been investigated as sources of analgesic (pain-relieving) agents. This review summarizes preclinical mechanisms, clinical evidence, safety considerations, and research gaps for several widely studied analgesic herbs: curcumin (turmeric), eugenol (clove), ginger (Zingiber officinale), Boswellia serrata, and willow bark (Salix spp.). Overall, strong preclinical evidence supports anti-inflammatory and nociception-modulating effects for these botanicals; clinical trials show promising but heterogeneous results, with limitations including variable preparations/doses and small sample sizes. Future work needs larger, well-controlled clinical trials, standardized extracts, and pharmacokinetic / pharmacodynamic characterization. Substances employed for relieving pain but not causing unconsciousness are analgesics. The term analgesic comes from ancient Greek roots: "an-" means without, while "-algos" signifies pain. Medications of analgesic nature influence different parts of the brain and spinal cord as well as other nerve tissues throughout the body. Different types of pain relievers include both artificial ones such as opioid medications derived from plants like Aloe vera, licorice root, ginger rhizome, cinnamon leaf, boswellia resin, willow bark (from Salix species), and various herbal extracts containing compounds known for their anti-inflammatory properties. Furthermore. The critique provides insights into various pain-relieving substances derived from nature.