Bioavailability of 17 ampicillin products

Area of Science:

• Pharmacology
• Pharmaceutical Sciences
• Clinical Pharmacy

Background:

• Ampicillin is a widely prescribed antibiotic.
• Ensuring consistent bioavailability across different manufacturers is crucial for therapeutic efficacy.
• Variability in drug products can impact patient outcomes.

Purpose of the Study:

• To evaluate and compare the bioavailability of 250-mg ampicillin capsules from 17 different distributors/manufacturers.
• To determine if significant pharmacokinetic differences exist between ampicillin products available on the market.

Main Methods:

• Serum ampicillin levels were measured at multiple time points (1, 2, 3, 4, 6, and 8 hours) post-administration.
• Key pharmacokinetic parameters including peak serum levels, time to peak, and area under the serum level-time curve (AUC) were analyzed.
• Statistical analysis was performed to identify significant differences between products.

Main Results:

• No statistically significant differences (p > 0.05) were observed between any of the 17 ampicillin capsule products tested.
• All evaluated products exhibited similar serum ampicillin concentration-time profiles.
• Pharmacokinetic parameters were consistent across all tested ampicillin lots.

Conclusions:

• The bioavailability of 250-mg ampicillin capsules is comparable across the 17 evaluated brands.
• This suggests consistent quality and therapeutic equivalence among these ampicillin products.
• Patients can be assured of similar ampicillin drug performance regardless of the tested manufacturer.