Comparative Pharmacology
Head-to-head clinical analysis: OXTRIPHYLLINE versus THEOPHYL SR.
Peer-Reviewed Evidence
Head-to-head clinical analysis: OXTRIPHYLLINE versus THEOPHYL SR.
OXTRIPHYLLINE vs THEOPHYL-SR
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Xanthine derivative that inhibits phosphodiesterase, increasing intracellular cyclic AMP; also antagonizes adenosine receptors, leading to bronchodilation and stimulation of respiratory drive.
Theophylline is a methylxanthine that inhibits phosphodiesterase, increasing cyclic AMP levels, and antagonizes adenosine receptors, leading to bronchodilation and anti-inflammatory effects.
200 mg orally every 6 hours, or 400 mg orally every 8-12 hours; maximum 600 mg per dose.
300 mg orally every 12 hours, with dosing titrated to achieve serum trough concentrations of 5-15 mcg/mL.
None Documented
None Documented
Adults: 3-5 hours (non-smokers); smokers: 4-6 hours; children: 1-4 hours; neonates: 20-30 hours; congestive heart failure or hepatic cirrhosis: prolonged up to 10-20 hours. Note: Oxtriphylline is a choline salt of theophylline, and its half-life reflects theophylline kinetics.
Clinical Note
moderateOxtriphylline + Deferasirox
"The serum concentration of Deferasirox can be increased when it is combined with Oxtriphylline."
Clinical Note
moderateOxtriphylline + Acemetacin
"The therapeutic efficacy of Acemetacin can be decreased when used in combination with Oxtriphylline."
Clinical Note
moderateOxtriphylline + Tenofovir disoproxil
"The metabolism of Tenofovir disoproxil can be decreased when combined with Oxtriphylline."
Clinical Note
moderateOxtriphylline + Clotrimazole
Adults: 8-10 hours (range 3-12); Neonates: 20-30 hours; Smokers: 4-5 hours; Cirrhosis: 30-40 hours. Dose adjustments needed based on half-life variations.
Renal: ~70-80% as unchanged drug and metabolites (including theophylline); biliary/fecal: minimal (<10%)
Renal: ~10% unchanged; Hepatic metabolism (90%) via CYP1A2, 3A4; metabolites (caffeine, 3-methylxanthine) excreted renally. Total clearance predominantly hepatic.
Category C
Category C
Bronchodilator
Bronchodilator
"The metabolism of Clotrimazole can be decreased when combined with Oxtriphylline."