Related Experiment Videos
[Biological availability of potassium from a sustained release preparation]
Schweizerische Medizinische Wochenschrift
|January 3, 1976
Summary
This study found sustained-release potassium chloride (KCl) has equal bioavailability to standard KCl tablets. The slow-release potassium formulation was well-tolerated by healthy volunteers.
Area of Science:
- Pharmacokinetics and Drug Delivery
Background:
- Potassium chloride (KCl) is commonly used for potassium supplementation.
- Sustained-release formulations aim to improve drug delivery and patient compliance.
- Understanding the bioavailability of different KCl formulations is crucial for effective therapeutic use.
Purpose of the Study:
- To compare the bioavailability of a sustained-release potassium chloride preparation against a standard non-sustained-release KCl tablet.
- To assess the tolerability of the sustained-release potassium formulation.
Main Methods:
- A comparative pharmacokinetic study was conducted in 10 healthy volunteers.
- Urinary elimination data of potassium was used to determine bioavailability.
- Subjects received both sustained-release and non-sustained-release KCl formulations.
Main Results:
- Urinary excretion data indicated comparable bioavailability between the two KCl formulations.
- Approximately 88% of the administered potassium was eliminated renally for both preparations.
- The sustained-release potassium chloride formulation was excellently tolerated.
Conclusions:
- The sustained-release potassium chloride preparation demonstrates equivalent bioavailability to conventional KCl tablets.
- The retard form of potassium chloride offers a well-tolerated alternative for potassium supplementation.