Last updated on RxList: 22 2009 OVERDOSE Overdose with verapamil may lead to pronounced hypotension, bradycardia, and conduction system abnormalities. How to thank TFD for its existence? Tell friend about us, add link to this page, add the site to iGoogle, or visit webmaster page for free fun content. Symptoms of overdose may include: severe dizziness fainting, fast irregular very slow heartbeat, confusion. Periodic monitoring of kaufen isoptin diat pille liver function in patients receiving verapamil is therefore prudent. Other Alcohol: Verapamil has been found to significantly inhibit ethanol elimination resulting in elevated blood ethanol concentrations that may prolong the intoxicating effects of alcohol. Click here to visit our most popular health centers and learn more.