Thanks for the post.
Q:" ... I believe you suggested an alternative medication - what was it and how does it differ from metoprolol?"
Some of the medications that may be helpful (without any proof to demonstrate
effectiveness) would be acebutolol or hyoscamine. Acebutolol is a beta-blocker with instrinsic sympathomimetic activity, so it tends to not slow the heart rate
as much. Hyoscamine is a vagolytic, and is often used to treat nasuea.