Hospital admission for xanthine toxicity

Area of Science:

• Pharmacology
• Clinical Pharmacy
• Drug Safety

Background:

• Theophylline is a widely prescribed medication for respiratory conditions.
• Monitoring for adverse events is crucial for patient safety.
• Xanthine toxicity can lead to severe health complications.

Purpose of the Study:

• To determine the incidence of hospitalization due to theophylline-induced xanthine toxicity in an outpatient setting.
• To assess the risk of severe adverse events associated with theophylline use.

Main Methods:

• A retrospective follow-up study was conducted.
• Data from 35,909 outpatients were analyzed over a 9-year period.
• Prescription data for over 220,000 theophylline prescriptions were reviewed.

Main Results:

• A total of 30 hospitalizations for xanthine toxicity were identified.
• The estimated incidence rate of hospitalization for xanthine toxicity was 7.8 per 10,000 person-years at risk.
• Hospitalization for xanthine toxicity was found to be a relatively rare event in this patient population.

Conclusions:

• Theophylline-induced xanthine toxicity leading to hospitalization is infrequent in outpatients.
• Theophylline can be used with a relatively low risk of severe toxicity requiring hospitalization.
• Continued vigilance for adverse events is warranted, though the overall risk appears low.