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"Comparably massive" penicillin G therapy in renal failure
Annals of Internal Medicine
|February 1, 1975
Summary
This study presents a method to safely administer penicillin G to patients with renal failure. It ensures effective drug levels, preventing both toxicity and undertreatment in kidney impairment.
Area of Science:
- Pharmacology
- Nephrology
- Clinical Pharmacy
Background:
- Penicillin G excretion is impaired in renal failure, increasing the risk of dose-related toxicity.
- Accurate dosing is crucial to avoid life-threatening complications in patients with kidney impairment.
Purpose of the Study:
- To report a method for achieving target serum penicillin G concentrations in patients with renal failure.
- To minimize the risks of both undertreatment and drug toxicity in this population.
Main Methods:
- The method utilizes the linear relationship between total plasma clearance of penicillin G (Cpen) and endogenous creatinine clearance.
- A formula is provided to calculate the daily maintenance dose based on Cpen and desired serum concentration.
Main Results:
- Application of the method to 15 patients with varying renal impairment resulted in desired serum penicillin G concentrations in 14 instances.
- The method proved effective for both constant-rate and intermittent infusion regimens.
Conclusions:
- A reliable method exists for calculating penicillin G doses in renal failure.
- This approach facilitates safe and effective penicillin G therapy in patients with impaired kidney function.
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