Email this page To: From: Subject: Message: Labetalol - Labetalol (Trandate® or Normodyne®) is a medicine know as a beta-blocker. It is used to help the heart beat more regularly and lower blood pressure. Learn more. - https://www.stjude.org/treatment/patient-resources/caregiver-resources/medicines/a-z-list-of-medicines/labetalol.html A summary of this page will be sent along with your message I am a referring physician Yes, I would like to receive email updates. Send Email Your message has been emailed successfully. Thank you for your interest in St. Jude Children's Research Hospital.