Comparative Pharmacology
Head-to-head clinical analysis: AMINOPHYLLINE IN SODIUM CHLORIDE 0 45 IN PLASTIC CONTAINER versus MAGNESIUM SULFATE IN PLASTIC CONTAINER.
Peer-Reviewed Evidence
Head-to-head clinical analysis: AMINOPHYLLINE IN SODIUM CHLORIDE 0 45 IN PLASTIC CONTAINER versus MAGNESIUM SULFATE IN PLASTIC CONTAINER.
AMINOPHYLLINE IN SODIUM CHLORIDE 0.45% IN PLASTIC CONTAINER vs MAGNESIUM SULFATE IN PLASTIC CONTAINER
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Aminophylline is a complex of theophylline and ethylenediamine. Theophylline acts as a non-selective phosphodiesterase inhibitor, increasing intracellular cyclic AMP levels, leading to bronchodilation. It also blocks adenosine receptors, stimulates catecholamine release, and enhances diaphragmatic contractility. The ethylenediamine component increases solubility.
Magnesium sulfate causes decreased release of acetylcholine at the neuromuscular junction, reducing muscle contractility. It also blocks calcium channels, leading to vasodilation and anticonvulsant effects.
Loading dose: 5-6 mg/kg IV over 20-30 minutes (if not on theophylline). Maintenance: 0.5-0.7 mg/kg/h IV continuous infusion.
IV: 1-4 g as a 10-20% solution, rate not exceeding 1 g/min; for eclampsia: 4-5 g IV bolus then 1-2 g/hour IV infusion.
None Documented
None Documented
Terminal elimination half-life: 3-12 hours in adults (mean 5-6 hours); prolonged in hepatic impairment, heart failure, COPD, and neonates (up to 30 hours). Smoking reduces half-life by 30-50%.
Normal renal function: 4–6 hours (terminal). In oliguria or anuria, half-life may extend to >24 hours, requiring dose adjustment.
Renal excretion of unchanged drug (about 10-20%) and metabolites (primarily 1,3-dimethyluric acid, 1-methyluric acid, 3-methylxanthine). Billary/fecal excretion is negligible.
Primarily renal (glomerular filtration); >90% excreted unchanged in urine. Biliary/fecal elimination is negligible (<1%).
Category A/B
Category C
Electrolyte
Electrolyte