Metoprolol succ er 100 mg?

Metoprolol succinate ER 100 mg is a beta-blocker (extended-release) medicine used for conditions like high blood pressure, angina (chest pain), and sometimes heart rhythm problems or heart failure (depending on the specific formulation).

What it is used for

• Hypertension (high blood pressure)
  
• Angina
  
• Heart rhythm control (e.g., certain tachyarrhythmias)
  
• Heart failure (specifically metoprolol succinate ER)
  
  

How it’s usually taken

• Typically once daily because it’s extended-release
  
• Swallow whole (don’t crush/chew), unless your pharmacist told you otherwise
  
• Try to take it at the same time each day
  
• Don’t stop suddenly—can cause rebound fast heart rate or blood pressure issues
  
  

Common side effects

• Slower heart rate
  
• Dizziness/lightheadedness
  
• Fatigue
  
• Cold hands/feet
  
• Low blood pressure
  
• Sometimes sleep changes or stomach upset
  
  

Important cautions (seek medical advice)

• If you have very slow heart rate, heart block, or severe asthma/COPD (may worsen breathing)
  
• Be careful with other meds that also lower heart rate/BP (some calcium channel blockers, antiarrhythmics, etc.)
  
• If you take diabetes meds, metoprolol can mask warning signs of low blood sugar (like fast heartbeat)
  
  

Quick question so I can help better

Are you asking about what it’s for, how to take it, side effects, or whether it’s safe with another medication? Also—what condition are you taking it for and what other meds do you take?