BMC Clinical Pharmacology

Table 8 Stability of Piperacillin/Tazobactam in water for injection at 4°C and 25°C

From: Comparative in vitrostudy of the antimicrobial activities of different commercial antibiotic products for intravenous administration

Time	4°C			25°C
	Slope	Intercept	R²	Slope	Intercept	R²
0 hours	2.8549	9.2827	0.9969	2.7549	9.2827	0.9969
6 hours	2.8705	10.204	0.9949	2.7902	10.32	0.9892
12 hours	2.8234	13.45	0.9895	2.7247	13.355	0.9838
24 hours	2.8507	10.185	0.99	2.7927	9.4542	0.9908
48 hours	2.8802	8.9856	0.9955	2.8346	9.4962	0.9929
6 days	2.8158	9.4177	0.9987	2.8067	7.2892	0.9995

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