许多药物经过临床长期使用的实践,又不断发现一些新的作用和用途。本文仅就四种老药新的临床应用加以总结,供临床使用参考。一、异烟肼异烟肼至今仍为良好的抗结核一线药物之一,在临床使用中发现:(1)治疗麦粒肿有效。口服对外麦粒肿疗效高于内麦粒肿。机理可能是由于其分子小具有强的穿透性,能透入细胞内且易进入细菌细胞膜,当生长期细菌分裂时,抑制第二代细菌的磷酯 Many drugs have been used in clinical practice over a long period of time and have continuously found some new roles and uses. This article only summarizes the four new clinical applications of old drugs for clinical use. First, isoniazid isoniazid is still a good first-line anti-TB drugs, found in clinical use: (1) effective treatment of the sty. Efficacy of oral administration of external stolons than internal sties. Mechanism may be due to its small molecules with strong penetration, can penetrate cells and easy access to the bacterial cell membrane, when the growth of bacterial division, inhibit the second generation of bacterial phospholipids