Mechanism of Action

Metoprolol is a cardioselective beta-1-adrenergic receptor inhibitor that competitively blocks beta1-receptors with minimal or no effects on beta-2 receptors at oral doses of less than 100 mg in adults. It decreases cardiac output by negative inotropic and chronotropic effects.

What should I avoid while taking metoprolol?

Caffeine has the ability to decrease the effectiveness of certain drugs like metoprolol. It is therefore better to avoid the intake of caffeine-containing foods and beverages while taking metoprolol.

What are the most common side effects of metoprolol?

Metoprolol may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
dizziness or lightheadedness.tiredness.depression.nausea.dry mouth.stomach pain.vomiting.gas or bloating.

How much does metoprolol lower your blood pressure?

The estimate of blood pressure lowering effect of metoprolol was ‐9/‐8 mmHg.

What heart rate is too low for metoprolol?

A heart rate of 55-60 is not unusual in people taking metoprolol. However, if a person had a heart rate that slow without a beta blocker, a doctor would be concerned that they would eventually develop symptoms from that slow of a heart rate.

What are the dangers of taking metoprolol?

Metoprolol may worsen the symptoms of heart failure in some patients. Check with your doctor right away if you are having chest pain or discomfort, dilated neck veins, extreme fatigue, irregular breathing or heartbeat, swelling of the face, fingers, feet, or lower legs, trouble breathing, or weight gain.

Is 50 mg of metoprolol a lot?

The dose is usually 1 milligram (mg) per kilogram (kg) of body weight once a day. The first dose should not be more than 50 mg once a day.

Does metoprolol help anxiety?

In conclusion, metoprolol is considered a safe and effective solution for social phobia and performance anxiety, especially when prescribed with therapy, lifestyle changes, and other medications (Dooley, 2015).

Do you hold metoprolol if blood pressure is low?

You shouldn’t take beta-blockers if you have low blood pressure or a slow pulse, because bringing down your heart rate more can cause dizziness and lightheadedness.

Does metoprolol affect sleep?

In some cases, metoprolol has been linked with insomnia, hallucinations, nightmares, and excessive daytime sleepiness. It’s also reported that metoprolol may suppress REM sleep. The rapid eye movement sleep cycle occurs about 90 minutes after you fall asleep.

How much does 50mg of metoprolol lower blood pressure?

After 9 weeks, metoprolol succinate extended-release alone decreased sitting blood pressure by 6 to 8/4 to 7 mmHg (placebo-corrected change from baseline) at 24 hours post-dose.

What happens if you take metoprolol on an empty stomach?

If you don’t feel dizzy after that, you can take it in the morning. What happens if you take Lopressor (metoprolol tartrate) on an empty stomach? Taking Lopressor (metoprolol tartrate) with a meal will lower your risk of having side effects. Lopressor (metoprolol tartrate) will be absorbed by your body more with food.

What is a normal resting heart rate on beta blockers?

The distribution of HR in patients treated or not with beta-blockers is depicted in Figure 4. Mean (SD) pulse HR was 67.6 (10.4) and 70.3 (11.2) bpm for patients with and without beta-blockers, respectively.

Do beta blockers weaken the heart?

Beta blockers, also called beta adrenergic blocking agents, block the release of the stress hormones adrenaline and noradrenaline in certain parts of the body. This results in a slowing of the heart rate and reduces the force at which blood is pumped around your body.

How long does 25mg of metoprolol last?

Metoprolol has a half-life of between 3 and 7 hours. This means that after 3 to 7 hours, half of a dose of the drug has been eliminated from your body.

Will metoprolol help irregular heartbeat?

Arrhythmias: bisoprolol and metoprolol succinate are often preferred. Beta-blockers are the first-line treatment for long-term symptomatic rate control in patients with a range of cardiac arrhythmias, including atrial fibrillation and ventricular tachycardia.

What is a dangerously low heart rate?

The hearts of adults at rest usually beat between 60 and 100 times a minute. If you have bradycardia, your heart beats fewer than 60 times a minute. Bradycardia can be a serious problem if the heart rate is very slow and the heart can’t pump enough oxygen-rich blood to the body.

Can I take vitamin D with metoprolol?

Interactions between your drugs

No interactions were found between metoprolol and Vitamin D3.