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Blood Pressure
    Home > Blood Pressure > Lopressor (Metoprolol Tartrate)

Lopressor (Metoprolol Tartrate)
Select Ref Description Manufacturer Pack Size Strength Our Price
J205 Lopressor (Metoprolol Tartrate) Generic 10 tabs 25 mg $ 3.80
J206 Lopressor (Metoprolol Tartrate) Generic 10 tabs 50 mg $ 4.65
J207 Lopressor (Metoprolol Tartrate) Generic 10 tabs 100 mg $ 5.30
P1059 Betaloc (Metoprolol Tartarate) AstraZeneca 30 tabs 25 mg $ 10.44
P1060 Betaloc (Metoprolol Tartarate) AstraZeneca 30 tabs 50 mg $ 9.95
P1061 Betaloc (Metoprolol Tartarate) AstraZeneca 10 tabs 100 mg $ 4.50
P1062 Betaloc H (Metoprolo Tartarate + Hydrochlorothiazide) AstraZeneca 10 tabs 100 mg+12.5 mg $ 4.45
P1066 Betaloc H (Metoprolo Tartarate + Hydrochlorothiazide) AstraZeneca 10 tabs 50 mg+12.5 mg $ 3.36
J475 Metoprolol Generic 10 tabs 100 mg $ 5.50
J486 Metoprolol Generic 10 tabs 100 mg $ 5.50
J487 Metoprolol Generic 10 tabs 50 mg $ 4.29
J488 Metoprolol Tartrate Xr Generic 10 tabs 25 mg $ 3.60
J489 Metoprolol Tartrate Xr Generic 10 tabs 50 mg $ 4.40
P1063 Seloken XL (Metoprolol Succinate) AstraZeneca 15 tabs 25 mg $ 7.70
P1064 Seloken XL (Metoprolol Succinate) AstraZeneca 15 tabs 50 mg $ 11.43
P1065 Seloken XL (Metoprolol Succinate) AstraZeneca 15 tabs 100 mg $ 15.93
Price is per pack & not per tab.. eg: if pack size is 10 tabs & price is $2.75 then for 100 tabs the price would be $27.50

Why is Metoprolol tartrate prescribed?

Lopressor, a type of medication known as a beta blocker, is used in the treatment of high blood pressure, angina pectoris (chest pain, usually caused by lack of oxygen to the heart due to clogged arteries), and heart attack. When prescribed for high blood pressure, it is effective when used alone or in combination with other high blood pressure medications. Beta blockers decrease the force and rate of heart contractions, thereby reducing the demand for oxygen and lowering blood pressure.

Occasionally doctors prescribe Lopressor for the treatment of aggressive behavior, prevention of migraine headache, and relief of temporary anxiety.

An extended-release form of Metoprolol tartrate, called Toprol-XL, is prescribed for high blood pressure, angina, and heart failure.

Most important fact about Metoprolol tartrate

If you have high blood pressure, you must take Lopressor regularly for it to be effective. Since blood pressure declines gradually, it may be several weeks before you get the full benefit of Lopressor; and you must continue taking it even if you are feeling well. Lopressor does not cure high blood pressure; it merely keeps it under control.

How should you take Metoprolol tartrate?

Lopressor should be taken with food or immediately after you have eaten.

Take Lopressor exactly as prescribed, even if your symptoms have disappeared.

Try not to miss any doses. If Metoprolol tartrate is not taken regularly, your condition may worsen.

If you miss a dose...
If it is within 4 hours of your next dose, skip the one you missed and go back to your regular schedule. Never take 2 doses at the same time.

Storage instructions...
Store Lopressor at room temperature in a tightly closed container, away from light. Protect from moisture. Store Toprol-XL at room temperature.

What side effects may occur?

Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Lopressor.

Side effects may include:

Depression, diarrhea, dizziness, itching, rash, shortness of breath, slow heartbeat, tiredness

Why should Metoprolol tartrate not be prescribed?

If you have a slow heartbeat, certain heart irregularities, low blood pressure, inadequate output from the heart, or heart failure, you should not take Metoprolol tartrate.

Special warnings about Metoprolol tartrate

If you have a history of congestive heart failure, Lopressor should be used with caution. If you are taking the extended release form of Metoprolol tartrate, Toprol-XL, to relieve heart failure, the condition may temporarily be worsened as your dosage is increased. Be sure to alert your doctor to any signs of worsening heart failure such as weight gain or increasing shortness of breath. If you have peripheral vascular disease, use Toprol-XL with caution.

Do not stop Lopressor abruptly. This can cause increased chest pain and heart attack. Dosage should be gradually reduced.

If you suffer from asthma, seasonal allergies or other bronchial conditions, or liver disease, Metoprolol tartrate should be used with caution.

Ask your doctor if you should check your pulse while taking Lopressor. This medication can cause your heartbeat to become too slow.

This medication may mask some symptoms of low blood sugar in diabetics or alter blood sugar levels. If you are diabetic, discuss this with your doctor.

If you have pheochromocytoma and your doctor prescribes Toprol-XL, you will first need to take an alpha-blocking drug (a different type of blood pressure medication).

Lopressor may cause you to become drowsy or less alert; therefore, driving or operating dangerous machinery or participating in any hazardous activity that requires full mental alertness is not recommended until you know how you respond to Metoprolol tartrate.

Notify your doctor or dentist that you are taking Lopressor if you have a medical emergency, or before you have surgery or dental treatment.

Notify your doctor if you have any difficulty in breathing.

Possible food and drug interactions when taking Metoprolol tartrate

If Lopressor is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Lopressor with certain high blood pressure drugs such as reserpine.

Other medications that might interact with Lopressor include:

Albuterol, Amiodarone, Barbiturates such as phenobarbital, Calcium channel blockers such as diltiazem and verapamil, Cimetidine, Ciprofloxacin, Clonidine, Epinephrine, Fluoxetine, Hydralazine, Insulin, Nonsteroidal anti-inflammatory drugs such as ibuprofen and indomethacin, Oral diabetes drugs such as glipizide and glyburide, Paroxetine, Prazosin, Propafenone, Quinidine, Ranitidine, Rifampin

Special information if you are pregnant or breastfeeding

The effects of Lopressor during pregnancy have not been adequately studied. If you are pregnant or plan to become pregnant, inform your doctor immediately. Lopressor appears in breast milk and could affect a nursing infant. If Metoprolol tartrate is essential to your health, your doctor may advise you to discontinue breastfeeding until your treatment with Metoprolol tartrate is finished.

Recommended dosage for Metoprolol tartrate


Dosages of Lopressor should be individualized by your doctor. It should be taken with or immediately following meals.

High Blood Pressure

The usual starting dosage of Lopressor is a total of 100 milligrams a day taken in 1 or 2 doses, whether taken alone or with a diuretic. The initial dosage of Toprol-XL ranges from 50 to 100 milligrams once a day. Your doctor may gradually increase the dosage up to 400 milligrams a day. Generally, the effectiveness of each dosage increase will be seen within a week.

Angina Pectoris

The usual starting dosage is a total of 100 milligrams a day taken in 2 doses of Lopressor or a single dose of Toprol-XL. Your doctor may gradually increase the dosage up to 400 milligrams a day.

Generally, the effectiveness of each dosage increase will be seen within a week. If treatment is to be discontinued, your doctor will withdraw the drug gradually over a period of 1 to 2 weeks.

Heart Attack

Lopressor can be used for treatment of heart attack both in the hospital during the early phases and after the individual's condition has stabilized. Your doctor will determine the dosage according to your needs.

Heart Failure

The recommended starting dose of Toprol-XL is 25 milligrams once daily for 2 weeks (12.5 milligrams in severe cases). Your doctor will double the dose every 2 weeks up to the highest level that works without side effects. The maximum recommended dose is 200 milligrams daily.


The safety and effectiveness of Lopressor have not been established in children.


Any medication taken in excess can cause symptoms of overdose. If you suspect an overdose, seek medical attention immediately.

The symptoms of Lopressor overdose may include:

Asthma-like symptoms, coma, heart failure, irregular heartbeat, low blood pressure, nausea and vomiting, shock, slow heartbeat, stopped heart


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