Abstract:Objective: To observe the therapeutic effects and adverse effects of adriamycin at different concentration and gentamicin on trigeminal neuralgia. Methods: Fifty patients with trigeminal neuralgia were divided into three groups randomly. They received nerve block peripherally with gentamicin or adriamycin at 0.2% or 0.5%, respectively. The parameters included pain intensity before and 1d, 3d, 1w, 2w, 1m, 2m and 3m after treatment, pain relief rate and dosage of carbamazepine. The adverse effects were also evaluated. Results: The pain intensity in 0.5% adriamycin group and gentamicin group decreased significantly at each time point ( P <0.01). In 0.2% adriamycin group, obvious decrease were observed at all except the first day after treatment ( P <0.05). In 0.5% adriamycin group, the value of numeric rating scale (NRS) was significantly less than that in 0.2% adriamycin group at 1d, 2w, 1m, 2m and 3m after treatment, and less than that in gentamicin group at 1m, 2m. The effective rate in 0.5%, 0.2% adriamycin and gentamicin groups were 72.2%, 25% and 31.3%, respectively. Conclusion: 0.5% adriamycin is more suitable for trigeminal neuralgia than 0.5% adriamycin and gentamicin.