Verapamil is a non-dihydropyridine calcium channel blocker used to treat atherosclerosis in chickens. It is an antihypertensive and vasodilating agent that relaxes the blood vessels so the heart does not have to pump as hard.
In one study, chickens receiving this treatment showed a 30-40% decrease in lipid deposition of the aorta. The effects were dose dependent (B Garcia Perez et al).
Overdose of this drug can be dangerous. Signs of toxicity include vomiting, decreased heart rate, low blood pressure, altered mental status, diarrhea and weakness.
