Safely Buy Lopressor SR ( Metoprolol Tartrate Sr ) from Canada Prescriptions Plus.

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Lopressor SR

Prescription Required
Formulation : ER Tablet
Drug Name Dosage Quantity Price Buy Now
Lopressor SR 200mg 84 $78.20 Add To Cart
Lopressor SR
Dosage: 200mg
Quantity: 84
Price: $78.20

( Affordable Generic Alternatives )

Metoprolol Tartrate Sr

Prescription Required
Formulation : Sustained Release Tablet
Drug Name Dosage Quantity Price Buy Now
Metoprolol Tartrate Sr 100mg 100 $53.53 Add To Cart
Metoprolol Tartrate Sr
Dosage: 100mg
Quantity: 100
Price: $53.53


Lopressor SR is a medication that belongs to the class of medications called beta-blockers. It contains the active ingredient metoprolol tartrate.

Lopressor SR is primarily used to treat high blood pressure (hypertension) and prevent the symptoms of angina (chest pain).

Use and Dosage

The usual maintenance dose of metoprolol ranges from 100 mg daily to 200 mg daily. However, the dose may be increased to 400 mg daily if necessary to obtain symptom control. Immediate-release tablets are taken in 2 divided doses while slow-release tablets are taken once a day.

The medication should be taken with or soon after a meal. Try to take the doses of metoprolol at the same time each day.

Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.

This medication must be taken exactly as prescribed by your doctor. If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.

Store this medication at room temperature, protect it from light and moisture, and keep it out of the reach of children.

Do not dispose of medications in wastewater (e.g. down the sink or in the toilet) or in household garbage. Ask your pharmacist how to dispose of medications that are no longer needed or have expired.

Side Effects

Get emergency medical help if you have signs of an allergic reaction to metoprolol: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Serious side effects include:

  • Very slow heartbeats
  • Light-headed feeling, like you might pass out
  • Shortness of breath (even with mild exertion), swelling, rapid weight gain
  • Cold feeling in your hands and feet

Common side effects of metoprolol may include:

  • Dizziness
  • Tired feeling
  • Depression
  • Confusion
  • Memory problems
  • Nightmares
  • Trouble sleeping
  • Diarrhea
  • Mild itching or rash

This is not a complete list of side effects and others may occur. 


  • You should not use this medicine if you are allergic to metoprolol, or other beta-blockers or if you have:
    • Serious heart problem such as heart block, sick sinus syndrome, or slow heart rate
    • Severe circulation problems
    • Severe heart failure (that required you to be in the hospital)
    • History of slow heartbeats that have caused you to faint
  • To make sure this medicine is safe for you, tell your doctor if you have:
    • Asthma, chronic obstructive pulmonary disease (COPD), sleep apnea, or other breathing disorder
    • Diabetes (taking metoprolol may make it harder for you to tell when you have low blood sugar)
    • Liver disease
    • Congestive heart failure
    • Problems with circulation (such as Raynaud’s syndrome)
    • Thyroid disorder
    • Pheochromocytoma (tumor of the adrenal gland)
  • Do not give this medicine to a child without medical advice.
  • Tell your doctor if you are pregnant or plan to become pregnant. It is not known whether metoprolol will harm an unborn baby. However, having high blood pressure during pregnancy may cause complications such as diabetes or eclampsia (dangerously high blood pressure that can lead to medical problems in both mother and baby). The benefit of treating hypertension may outweigh any risks to the baby.
  • Ask a doctor before using this medicine if you are breast-feeding. Metoprolol can pass into breast milk and may cause dry skin, dry mouth, diarrhea, constipation, or slow heartbeats in your baby.

Forms and Strengths

Lopressor SR is available in the following forms and strengths:

  • Lopressor SR ER Tablet:
    • 200 mg
  • Metoprolol Tartrate Sustained Release Tablet:
    • 100 mg


What happens if I miss a dose?

Skip the missed dose and use your next dose at the regular time. Do not use two doses at one time.

What happens if I overdose?

Seek emergency medical attention.

What to avoid?

Avoid driving or hazardous activity until you know how this medicine will affect you. Your reactions could be impaired.

Drinking alcohol can increase certain side effects of this medicine.



Additional information

Brand Name:

Lopressor SR

Scientific Name:

Metoprolol Tartrate SR, Metoprolol Tartrate Sr

Other Names:

Lopresor SR, Metoprolol SR


100mg, 200mg

Quantities Available:

84, 100


ER Tablet, Sustained Release Tablet