Implementation Study of Patient-Ready Syringes Containing 25 mg/mL Methotrexate Solution for Use in Treating Ectopic Pregnancy

Table 1

Stability of 25 mg/mL methotrexate solution for injection packaged in polypropylene syringes.

Time (days)	% of initial concentration remaining (mean ± SD; CV%) (𝑛=3)
	25 mg/mL	25 mg/mL
	23°C dark	+2 to +8°C dark
1	101.2±1.6;1.6	101.2±0.3;0.3
7	101.2±0.3;0.3	100.3±1.0;1.0
14	100.0±1.0;1.0	99.0±2.3;2.3
28	100.0±0.8;0.8	99.2±0.3;0.3
56	100.3±0.8;0.8	99.0±0.5;0.5
84	102.2±1.1;1.0	102.5±2.3;2.2