Table 1

Stability of dobutamine 500 mg in 50 ml syringes stored under different conditions of temperature, with and without exposure to light

	% of initial concentration (mean ±SD, n=3)
Storage conditions	3 days	7 days	14 days	21 days	28 days	35 days	42 days
4°C (protected from light)	100.02±0.16	99.92±0.09	99.40±0.14	99.36±0.15	99.00±0.17	98.72±0.12	98.26±0.11
Room temperature (protected from light)	99.82±0.16	99.73±0.11	99.21±0.18	98.91±0.05	98.36±0.12	97.70±0.13	97.18±0.14
40°C (protected from light)	99.75±0.16	99.23±0.16	98.74±0.07	97.81±0.16	96.90±0.16	96.13±0.10	94.92±0.07
Room temperature (exposed to light)	99.32±0.16	99.10±0.06	98.42±0.13	98.08±0.11	97.74±0.11	97.00±0.06	96.28±0.16