MedDataToolLabetalol is a medication used to manage high blood pressure, either on its own or alongside other blood pressure medications. It works by blocking certain receptors in the body, which helps to relax blood vessels and lower heart rate, ultimately reducing blood pressure. You typically take it in tablet form, starting with 100 mg twice a day, and the dose can be increased to a maximum of 400 mg twice a day based on your blood pressure response. It's important to know that labetalol should not be used if you have asthma or severe heart failure. Additionally, if you're taking other blood pressure medications, your doctor may need to adjust your dose of labetalol to avoid excessive lowering of blood pressure.
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Uses
- Hypertension.
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Dosage
Start with 100 mg twice daily.
Increase by 100 mg twice daily every 2 or 3 days as needed.
Usual maintenance is 200 mg to 400 mg twice daily.
Patients with severe hypertension may need 1200 mg to 2400 mg daily.
Elderly patients may require lower doses, typically 100 mg to 200 mg twice daily.
Always follow your doctor's specific instructions for your dose.
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Side effects
Common
Dizzinessnauseafatigueheadache
Serious
Liver injurycardiac failurebronchospasm
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Warnings
⚠ Important warnings
- Risk of severe liver injury; monitor liver function.
- Use cautiously in patients with heart failure.
- Do not stop abruptly if you have heart disease.
- Not recommended for patients with bronchospastic disease.
- Monitor closely if you have diabetes.
Ask about this drug
Answers pulled from the FDA label only.
Medical Disclaimer: This content is provided for informational and educational purposes only and is not intended as medical advice. Always consult a qualified healthcare provider before taking any medication.
Data Source: Publicly available drug labeling information from the U.S. Food and Drug Administration (FDA).
Data Source: Publicly available drug labeling information from the U.S. Food and Drug Administration (FDA).