Plasma nitrendipine concentrations in elderly hypertensive patients after single and multiple dosing

Area of Science:

• Pharmacology
• Geriatric Medicine
• Cardiovascular Research

Background:

• Hypertension is a prevalent condition in the elderly.
• Nitrendipine is a calcium channel blocker used for hypertension management.
• Understanding drug pharmacokinetics in elderly populations is crucial for safe and effective treatment.

Purpose of the Study:

• To evaluate the pharmacokinetic profile of nitrendipine in elderly hypertensive patients.
• To determine if nitrendipine accumulates in plasma with daily dosing over 8 days.
• To assess the consistency of plasma nitrendipine concentrations in this demographic.

Main Methods:

• A cohort of 23 elderly hypertensive subjects was enrolled.
• Subjects received oral nitrendipine 10mg once daily for 8 days.
• Plasma concentrations of nitrendipine were measured after the first and final doses.

Main Results:

• No significant differences in plasma nitrendipine concentrations were observed between the first and last dose.
• Pharmacokinetic parameters derived from plasma concentrations showed no significant changes.
• Evidence of drug accumulation was not detected during the 8-day treatment period.

Conclusions:

• Nitrendipine exhibits predictable pharmacokinetics in elderly hypertensive patients.
• Daily oral administration of nitrendipine 10mg does not lead to drug accumulation over 8 days.
• The findings support the safe and consistent use of nitrendipine in this patient group.