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What is Lopressor SR (Metoprolol Tartrate) prescribed for?

Lopressor is a medication that may or may not be used with other medicines to treat high blood pressure. This medication is also used to treat chest pain and helps improve your survival rate after a heart attack. Commonly used as a high blood pressure medication, it helps lower your blood pressure, and by lowering your blood pressure you can help prevent yourself from getting strokes, heart attacks and kidney problems.

This medication works by blocking the action of a natural chemical in your body, such as epinephrine, in the heart and blood vessels.  But doing so, it creates an effect that lowers the heart rate, blood pressure, and the strain on the heart.

This medication comes in the singular dose of 200mg. Remember; your dose is based on your medical background and your overall response to the treatment. If your doctor or pharmacist has given you some information in the form of a pamphlet, take the time to read up on this drug, and if you have any questions or concerns regarding this medication, please consult your doctor.

This medication is to be taken by mouth, with a meal or right after you have eaten, or as directed by your doctor. And it is usually taken 1 to 3 times a day.

Remember the dosage given to you is based on your medical condition and your response to the treatment.  For treatment of high blood pressure, it may take about several weeks before you begin to feel the full effect of the medication.

To prevent chest pain, second heart attack, or migraines and headaches, it is so important to take this medication regularly, and exactly how it has been prescribed to you. This medication is not to be used to treat chest pains or migraines when they occur.


Before taking this medication, it is best to advise your doctor if you are allergic to Metoprolol Tartrate; or to any other medications or allergies in general.

Also it is best to notify your doctor of your medical history. Inform you doctor if you have had any of the following; certain types of heart rhythm problems (such as a slow heartbeat, sick sinus syndrome, second- or third-degree atrioventricular block), breathing problems (such as asthma, chronic bronchitis, emphysema), liver disease, heart failure, serious allergic reactions, including those needing treatment with epinephrine, blood circulation problems (such as Raynaud's disease, peripheral vascular disease), mental/mood disorders (such as depression), a certain muscle disease (myasthenia gravis).

If you have diabetes, this product may mask the fast/pounding heartbeat you would usually feel when your blood sugar falls too low (hypoglycemia). Other symptoms of low blood sugar, such as dizziness and sweating, are unaffected by this drug. This product may also make it harder to control your blood sugar. Check your blood sugar regularly as directed and share the results with your doctor. Tell your doctor right away if you have symptoms of high blood sugar such as increased thirst/urination. Your doctor may need to adjust your diabetes medication, exercise program, or diet.

Side Effects

Some of these side effects may occur when taking this medication, they are as follows; Drowsiness, dizziness, tiredness, diarrhea, and slow heartbeat may occur. However if any of these effects persist or worsen, contact your doctor right away.

If you are experiencing any of these rare but very serious side effects, seek medical help right away. The side effects are as follows; very slow heartbeat, severe dizziness, fainting, blue fingers/toes, trouble breathing, new or worsening symptoms of heart failure (such as shortness of breath, swelling ankles/feet, unusual tiredness, unusual/sudden weight gain), mental/mood changes (such as confusion, mood swings, depression).

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.


What happens if I suddenly stop taking this medication?

There may be a relapse in symptoms as well as side effects. You should speak your doctor before stop taking this medication.


 What is the best dosage to take?

The diagnosis with your doctor will be able to determine the best dosage for your treatment. Work with your doctor closely for dosage and dosing schedules.


 What happens if I miss a dose?

You should take the missed dose as soon you realize you have forgotten. If the forgotten dose is closer to your next scheduled dose, take the next schedule dose to avoid overlapping in dose.


 What is the best way to store this medication?

This medication is stored at room temperature, and should be kept away from children and pets. Do not throw away this medication in the wastebasket. If you are uncertain how to dispose of this medication speak with your pharmacist for help in safely disposing of this medication.

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