Table 2

Linear regression equation, degradation coefficient and calculated T_95% of dobutamine in Central Intravenous Additives Service syringes based on 5% loss when stored under various experimental conditions

Storage conditions	Linear regression equation and correlation coefficient	k (days−1)	Calculated T_95% (days)
4°C (protected from light)	y=−0.0002x+2.9995	0.000461	111.4
4°C (protected from light)	R²=0.9696	0.000461	111.4
Room temperature (protected from light)	y=−0.0003x+2.9993	0.000691	74.3
Room temperature (protected from light)	R²=0.9857	0.000691	74.3
40°C (protected from light)	y=−0.0005x+2.9995	0.001152	44.6
40°C (protected from light)	R²=0.9901	0.001152	44.6
Room temperature (exposed to light)	y=−0.0004x+2.9976	0.000921	55.7
Room temperature (exposed to light)	R²=0.9797	0.000921	55.7