What you need to know about beta-blockers
Metoprolol is a type of drug called a beta-blocker. Learn more about the uses, types, side effects, and interactions of beta-blockers here.
How it works
Metoprolol is a cardioselective beta-blocker. Beta-blockers prevent the heart from getting too excited or overworked. They do this by blocking off the beta receptors in the blood and heart. When the receptors are inaccessible, compounds that would usually excite the heart, such as epinephrine, cannot act on them and cause these effects. As a result, this may help keep the blood vessels relaxed. When the blood vessels are relaxed, the heart does not have to work as hard to pump blood, which can help lower a person's heart rate. Beta-blockers may also reduce how much oxygen the heart requires and lessen the need for it to pump faster. This combination of effects is what helps reduce the symptoms of heart problems, including high blood pressure and angina.
How to take it
The required d/osage of each drug will differ from person to person as it will depend on a few different factors, including the condition that requires treatment. It is important to follow the dosing instructions that the doctor provides. In some cases, doctors may prescribe a low dose of the drug initially and then increase it incrementally to find the smallest effective dose that still relieves symptoms. As the Toprol-XL label states, the individual should take the extended-release metoprolol succinate tablet regularly and continuously, once each day, and preferably with or just after a meal. If the person misses a dose, they should not take a double dose but should take the next tablet as usual the following day.
Side effects
- dizziness, fatigue, constipation, diarrhea, shortness of breath, coughing or wheezing, skin rashes, temporary mental confusion, blurry vision, short-term memory loss, reduced sex drive or loss of interest in sex
- an allergic reaction, which may cause itching of the throat and swelling of the face, throat, or hands
- cold hands or feet that may feel numb
- extremely low or slow heart rate or weak pulse
- extreme fatigue that may get worse over time
- trouble concentrating
- symptoms of depression, such as continuous or recurring feelings of sadness
Interactions
Metoprolol interacts with several drugs. People who are taking the drug or may need to should review their other medications with a doctor first to check for any interactions.