Table 2

The percentage of intravenous co-trimoxazole remaining in the glucose 5% infusion stored at room temperature for various time points. Results are expressed as mean±SD. Each intravenous co-trimoxazole infusion bag was prepared in triplicate and each sample analysed in duplicate

Dilution ratio	Drug	Initial concentration	% Initial drug concentration remaining
Dilution ratio	Drug	0 hour (mg/mL)	0.5 hour	1 hour	2 hours	4 hours
1:25 v/v	Trimethoprim	0.63	101±0.8	100±0.6	100±1.0	100±1.5
	Sulfamethoxazole	3.18	100±6.2	100±2.2	100±4.5	100±6.3
1:20 v/v	Trimethoprim	0.8	100±0.8	100±0.4	99±0.5	99±1.2
	Sulfamethoxazole	3.99	100±2.8	100±1.9	100±2.2	99±6.3
1:15 v/v	Trimethoprim	1.06	99±0.5	99±0.4	99±0.5	98±0.4
	Sulfamethoxazole	5.29	99±2.2	100±4.7	99±2.6	98±2.8
1:10 v/v	Trimethoprim	1.64	100±0.5	99±1.0	100±1.6	100±0.7
	Sulfamethoxazole	8.12	100±2.7	99±5.2	100±5.9	100±4.7