Related Experiment Videos
[Sympathomimetics and theophylline: combined use?]
R Alvarez Sintes1, R Alvarez Sintes, M R Alvarez Castro
1Medicina Interna y Cuidados Intensivos, Hospital Clínico-Quirúrgico Docente, Calixto García, La Habana, Cuba.
Anales De Medicina Interna (Madrid, Spain : 1984)
|September 1, 1995
Summary
Theophylline and salbutamol, alone or combined, improved lung function in asthma patients compared to placebo. While generally safe, higher-dose combinations showed more minor side effects.
Area of Science:
- Pulmonology
- Clinical Pharmacology
Background:
- Bronchial asthma management often involves bronchodilators.
- Theophylline and salbutamol are commonly used agents with different mechanisms.
- Optimizing treatment requires understanding comparative efficacy and safety profiles.
Purpose of the Study:
- To compare the bronchodilator effects of theophylline, salbutamol, and their combinations.
- To evaluate the toxicity and adverse reactions of these treatment regimens.
- To determine optimal dosing for asthma management.
Main Methods:
- A randomized crossover trial involving 30 bronchial asthma patients.
- Comparison of five treatment groups: theophylline, salbutamol, high-dose combination, low-dose combination, and placebo.
- Assessment of bronchodilator effect via FEV1 and monitoring of adverse events.
Main Results:
- All active treatments (theophylline, salbutamol, and combinations) significantly improved FEV1 compared to placebo.
- No major adverse reactions or cardiotoxicity were observed, with good tolerability overall.
- The high-dose combination regimen exhibited a higher incidence of minor adverse reactions compared to monotherapy or the low-dose combination.
Conclusions:
- Theophylline and salbutamol, individually and in combination, are effective bronchodilators for asthma.
- Treatment regimens were generally well-tolerated, with no serious safety concerns.
- Dose optimization is important, as higher combination doses may increase minor adverse effects.