Solanaceae glycoalkaloids: α-solanine and α-chaconine modify the cardioinhibitory activity of verapamil.

Context: Solanaceae glycoalkaloids (SGAs) possess cardiomodulatory activity.

Objective: This study investigated the potential interaction between verapamil and glycoalkaloids.

Material And Methods: The cardioactivity of verapamil and glycoalkaloids (α-solanine and α-chaconine) was tested in adult beetle () myocardium using microdensitometric methods.