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Manufacturer's information insert and subjective theophylline side-effects
1Département des Maladies Respiratoires, Centre Hospitalier et Universitaire de Marseille et UBRAC, Briançon, France.
The European Respiratory Journal
|November 1, 1990
Summary
Theophylline drug inserts significantly increased perceived side effects in asthma patients, leading to reduced treatment adherence. This suggests patient awareness, influenced by inserts, impacts therapeutic compliance.
Area of Science:
- Pharmacology
- Clinical Medicine
- Patient Adherence
Background:
- European medicine packaging includes manufacturer-provided inserts detailing drug side effects.
- Theophylline is a common asthma medication with known potential side effects.
Purpose of the Study:
- To investigate the impact of manufacturer-provided drug inserts on the perceived side effects of theophylline.
- To assess the influence of these inserts on patient compliance with theophylline therapy.
Main Methods:
- Forty adult asthmatic patients were randomized into two groups.
- Group A received theophylline with the manufacturer's insert; Group B received theophylline without the insert.
- Patients self-reported symptoms daily for one week, and blood levels were measured.
Main Results:
- Theophylline side effects were significantly more pronounced in Group A compared to Group B.
- More patients in Group A (8) discontinued treatment due to perceived intolerance than in Group B (3).
- No significant differences in theophylline blood levels were observed between the groups.
Conclusions:
- Drug inserts may suggest or heighten patient awareness of side effects, negatively impacting treatment compliance.
- Theophylline side effect perception, influenced by package inserts, can detrimentally affect adherence to therapy.