Theophylline and Aminophylline: IV Start and Level Adjustment
Theophylline and aminophylline by the FDA label.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Mode: IV start or adjustment
- IV start: loading dose and infusion rate
- IV start: product
- Aminophylline
- IV start: ideal body weight
- 70 kg
- IV start: patient group
- Adult 16 to 60, otherwise healthy nonsmoker
- IV start: theophylline in the past 24 hours
- No theophylline in the past 24 hours
Result: Aminophylline on 70 kg ideal weight: load 399 mg aminophylline over 30 minutes, then 35 mg/h.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Mode: IV start or adjustment
- IV start: product
- IV start: ideal body weight
- IV start: patient group
- IV start, infant group: age
- IV start: theophylline in the past 24 hours
- IV start with a level: desired level
- Measured level (adjustment: the peak)
The other 2 fields
- Adjustment: IV infusion or oral product
- Adjustment: current mg/h (IV) or mg/day (oral)
How this is calculated
Citation
FDA labels on DailyMed. Aminophylline Injection, Dosage and Administration: loading dose 4.6 mg/kg (or from a level, V 0.5 L/kg), Table V infusion rates and ceilings, Table VI. Theophylline Extended-Release Tablets, Table VI: adjustment by peak serum level. Read the sources: Aminophylline injection label ↗, Theophylline extended-release label ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.