Some people taking beta blockers notice that their fingers or toes feel colder than before.
This can happen because beta-blocker effects may alter blood flow in peripheral blood vessels.
For many people this is uncomfortable but not dangerous.
However, contact a healthcare professional if coldness is accompanied by:
Severe pain
Marked color changes
Numbness that persists
Wounds that heal poorly
A significant worsening of a known circulation problem
Metoprolol and Raynaud’s Symptoms
People with Raynaud’s phenomenon or significant peripheral vascular disease should mention this condition to their prescriber.
A healthcare professional can decide whether the benefits of treatment outweigh any potential worsening of peripheral symptoms.
6. Shortness of Breath or Wheezing
Metoprolol is considered relatively selective for beta-1 receptors in the heart, particularly at lower doses.
However, this selectivity is not absolute.
At higher doses, or in susceptible individuals, beta blockade can also influence beta receptors involved in airway function.
