A pharmaceutical formulation comprises, in combination with a penem of formula (I): ##STR1## in which: R.sup.1 is hydrogen or an organic substituent group; R.sup.2 is a fused bicyclic heterocyclic ring system of general formula: ##STR2## wherein R.sup.4 and R.sup.5 are independently hydrogen or one or more substituents replacing hydrogen atoms in the ring system shown; m is 2 or 3; p is zero, 1 or 2; and R.sup.3 is hydrogen, a salt-forming cation or an ester-forming group; and the symbol .dbd./.dbd. indicates that the double bond may be in either the E or Z configuration; and a pharmaceutically acceptable carrier; a .beta.-lactam antibiotic selected from the group consisting of ceftazidime, cefotaxime, amoxycillin, and piperacillin, and pharmaceutically acceptable derivatives thereof.
一种药物制剂包括以下成分:与式(I)的penem结合,其中:R1是氢或有机取代基;R2是一种融合的双环杂环环系,其一般式为:其中R4和R5分别是氢或取代杂环中氢原子的一个或多个取代基;m为2或3;p为0、1或2;R3是氢、盐形成阳离子或酯形成基;符号.dbd./.dbd.表示双键可以是E或Z构型;以及一种药学上可接受的载体;一种从
头孢他啶、头孢噻
肟、
阿莫西林和
哌拉西林及其药学上可接受的衍
生物中选择的β-内酰胺类抗生素。