Lopressor Injection Dosage
Medically reviewed by Drugs.com. Last updated on Dec 12, 2022.
Early Treatment: During the early phase of definite or suspected acute myocardial infarction, initiate treatment with Lopressor as soon as possible after the patient’s arrival in the hospital. Such treatment should be initiated in a coronary care or similar unit immediately after the patient’s hemodynamic condition has stabilized.
Begin treatment in this early phase with the intravenous administration of three bolus injections of 5 mg of Lopressor each; give the injections at approximately 2-minute intervals. During the intravenous administration of Lopressor, monitor blood pressure, heart rate, and electrocardiogram.
In patients who tolerate the full intravenous dose (15 mg), initiate Lopressor tablets, 50 mg every 6 hours, 15 minutes after the last intravenous dose and continue for 48 hours. Thereafter, the maintenance dosage is 100 mg orally twice daily.
Start patients who appear not to tolerate the full intravenous dose on Lopressor tablets either 25 mg or 50 mg every 6 hours (depending on the degree of intolerance) 15 minutes after the last intravenous dose or as soon as their clinical condition allows. In patients with severe intolerance, discontinue Lopressor (see WARNINGS).
Pediatric patients: No pediatric studies have been performed. The safety and efficacy of Lopressor in pediatric patients have not been established.
Renal impairment: No dose adjustment of Lopressor is required in patients with renal impairment.
Hepatic impairment: Lopressor blood levels are likely to increase substantially in patients with hepatic impairment. Therefore, Lopressor should be initiated at low doses with cautious gradual dose titration according to clinical response.
Geriatric patients (>65 years): In general, use a low initial starting dose in elderly patients given their greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.
Frequently asked questions
- What is the best time of day to take blood pressure medication?
- Metoprolol Succinate vs Tartrate - What's the difference between them?
- How long does Metoprolol stay in your system after you stop taking it?
- How long does it take for metoprolol to work?
- Which is safer: metoprolol succinate or tartrate?
- Is Metoprolol a blood thinner?
- What is Prolomet XL 50? What is the mechanism of action and what are this medicine side effects?
- How is atenolol superior to metoprolol?
More about Lopressor (metoprolol)
- Check interactions
- Compare alternatives
- Pricing & coupons
- Reviews (15)
- Drug images
- Side effects
- Dosage information
- During pregnancy
- Generic availability
- Drug class: cardioselective beta blockers
- En español
- Lopressor (Metoprolol Intravenous) advanced reading
- Lopressor (Metoprolol Oral) (Advanced Reading)
- Lopressor (Metoprolol Injection)
- Lopressor (Metoprolol Tablets)
Related treatment guides
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.