Studies have shown that COREG CR works to lower blood pressure by:
* Helping the heart beat more slowly and with less force. This puts less strain on the heart*
* Allowing the blood vessels to relax. This means there is less resistance, which helps blood to flow throughout the body

Beta-blockers approved by the US FDA for heart failure include Toprol-XL and Coreg. Toprol-XL blocks beta-1 receptors. Coreg blocks beta-1, beta-2, and alpha-receptors. They are both good for heart failure. Coreg lowers blood pressure more, so if you already have low blood pressure, you might want to use Toprol-XL. Toprol-XL costs less, and may improve [...]

Coreg Oral Precautions
Before taking carvedilol, tell your doctor or pharmacist if you are allergic to it; or if you have had a serious reaction to other beta blockers (e.g., propranolol); or if you have any other allergies.
This medication should not be used if you have certain medical conditions.

This medication is an alpha and beta blocker used to treat high blood pressure and heart failure. It is also used after a heart attack to improve the chance of survival. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems.