Table 3

Stability of a mixture of 2.5 mg/mL nefopam and 52 µg/mL droperidol diluted in 0.9% sodium chloride

Drug	Initial concentration	Syringe	Percentage of initial concentration±SD (%)
Drug	Initial concentration	Syringe	0 hour	6 hours	24 hours	48 hours
Nefopam (mg/mL)	2.48	S1	100.00±0.21	102.04±0.22	99.16±1.08	100.59±0.54
	2.45	S2	100.00±0.55	104.40±0.25	103.54±0.34	105.27±0.53
	2.58	S3	100.00±0.48	99.89±0.38	99.25±0.07	100.65±0.02
Droperidol (µg/mL)	56.08	S1	100.00±0.21	101.91±0.18	98.52±0.83	99.81±0.67
	54.44	S2	100.00±0.69	105.91±0.38	104.03±0.78	106.26±0.80
	57.01	S3	100.00±0.49	99.82±0.28	99.25±0.38	100.57±0.51

Note: Drug concentrations in samples taken at time zero were designated as 100%. Samples were prepared in triplicate for each syringe.