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What is Lopressor?


The active ingredient of Lopressor is Metoprolol, which is a part of a group of drugs known as selective ?1-blockers. It blocks the action of some natural chemicals in the body on the heart and blood vessels reducing heart’s strain, stabilizing the heart rhythm when it is irregular and lowering high blood pressure.

What are the indications for using Lopressor?


Lopressor can be used to treat a range of conditions including ventricular and supraventricular tachycardia, acute myocardial infarction, congestive heart failure, hypertension, angina, and prevention of migraine. It is also used as a part of the treatment for hyperthyroidism, vasovagal syncope, long QT syndrome, and prevention of atrial fibrillation. Social anxiety disorder and performance anxiety can also be treated using Lopressor.

What is the dosage for Lopressor?


Treatment of hypertension:
When taking Lopressor make sure to take it while or right before eating. The starting dose is 100 mg, which can be separated into two doses or left as one. Each week the dosage can be slightly increased until the desired blood pressure is achieved. The dosage can range from 100 to 450 mg. By measuring the blood pressure at the end of the dosing period, the doctor can determine if the dosage should be separated into two or more doses.

Treatment of angina:
The initial dose of Lopressor for treatment of angina pectoris is 100 mg/day. The dosage is then raised to achieve optimal results; however, it shouldn’t go beyond 400 mg/day. If the treatment is discontinued, the dosage should be lowered gradually over a period of 2 weeks.

What are the contraindications for using Lopressor?


First of all Lopressor shouldn’t be used by patients who are allergic to metoprolol or other beta-blockers. Other contraindications include:

severe heart failure
severe blood circulation problems
2nd and 3rd degree AV block or sick sinus syndrome
if the patient is unable to urinate

The doctor should be consulted if the patient has gout, thyroid disorder, asthma, glaucoma, liver disease, kidney disease and diabetes.

What are the adverse effects of Lopressor?


You should immediately contact your doctor if you experience any of the following adverse effects:

nausea, loss of appetite, upper stomach pain, dark urine, jaundice, clay-colored stools;
swelling of hands and feet;
shortness of breath, even after slight exertion;
fainting or feeling of light-headedness;
chest pain, fluttering or pounding heartbeats;
trouble breathing;
easy bruising and purple/red spots under the skin;
cold feeling in hands and feet;
depression, memory problems, confusion, and hallucinations.


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