Originally Posted by DBarcelo
I assume it's Metoprolol Titrate Tablets. It also comes as Lopressor Tablets, Lopressor Injection and Toprol-XL Tablets.
I show the Metoprolol Titrate being made by Mylan, Teva, Novopharm and Watson, but they're all the same really.
In any case, there is no known interaction and I don't see any interaction that can be infered. The beta channel blocking is pretty much isolated to the heart muscles. That's why it's called technically a selective beta-adrenoreceptor blocking agent. If it worries you, you can ask the doctor if you can switched to a calcium channel blocker instead. But you're fine with what you're on now.