A composition for testing or treating microbial systems or infections, comprising an effective potentiating amount of a microbial dihydropteridine antagonist, which itself inhibits hydroxymethyldihydropteridine pyrophospokinase and has a sufficiently low toxicity, in combination with an effective amount of a competitor of para-aminobenzoic acid or an inhibitor of dihydrofolate reductase or both, its method of preparation, and its use in the inhibition of the production of dihydrofolic acid by microorganisms under in vivo or in vitro conditions.
一种用于测试或治疗微
生物系统或感染的组合物,包括有效增敏量的微
生物二氢蝶啶拮抗剂,其本身抑制羟甲基二氢蝶啶
焦磷酸激酶且具有足够低的毒性,与
对氨基苯甲酸的有效竞争剂量或二氢叶酸还原酶
抑制剂或两者的组合,其制备方法,及其在体内或体外条件下抑制微
生物产生二氢叶酸的用途。