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Serum theophylline concentrations in asthmatic children
Annals of Allergy
|December 1, 1978
Summary
Sustained-release theophylline preparations led to higher serum concentrations in asthmatic children compared to short-acting ones. This finding is crucial for optimizing asthma management and preventing theophylline toxicity.
Area of Science:
- Pediatric Pulmonology
- Clinical Pharmacology
- Pharmacokinetics
Background:
- Theophylline is a bronchodilator used for asthma management.
- Monitoring serum theophylline concentrations is vital to ensure therapeutic efficacy and avoid toxicity.
- Different theophylline formulations may impact drug levels differently.
Purpose of the Study:
- To compare serum theophylline concentrations in pediatric asthma patients receiving sustained-release versus short-acting theophylline preparations.
- To identify potential differences in achieving therapeutic theophylline levels based on formulation.
Main Methods:
- Serum theophylline levels were measured in 25 children with asthma on continuous therapy.
- Patients were categorized based on receiving either sustained-release or short-acting theophylline formulations.
- Concentrations exceeding 8 mcg/ml were noted as a key indicator.
Main Results:
- A higher frequency of serum theophylline concentrations exceeding 8 mcg/ml was observed in children using sustained-release preparations.
- This suggests a potential for higher systemic exposure with sustained-release formulations.
Conclusions:
- Sustained-release theophylline preparations may lead to higher serum concentrations in pediatric asthma patients compared to short-acting formulations.
- Careful monitoring is recommended when using sustained-release theophylline to prevent supratherapeutic levels and potential adverse effects.