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What is Labetalol used for?
This medicine treats angina (chest pain related to cardiac conditions), high blood pressure, pregnancy linked hypertension, and heart failure. It also controls blood pressure during emergencies such as surgeries.
How does Labetalol work?
Labetalol blocks beta and alpha-1 adrenergic receptors. The action mechanism helps blood vessels to relax. It thus reduces the heart rate. The medication is helpful in decreasing pressure on the heart, lowering blood pressure, and improving blood circulation.
What are the Labetalol ingredients and available forms?
The active ingredient is labetalol hydrochloride. Tablets may have inactive ingredients such as lactose monohydrate and magnesium stearate.​ The available formats are tablets (usually 100 mg, 200 mg, and 300 mg) or injectable solutions for intravenous use.
How long does Labetalol take to act?
The oral tablet may take 2 hours to lower the blood pressure, and reach peak effect in 3 hours. However, intravenous solutions may work quicker within 5 to 10 minutes with peak effects after 5 minutes of injection.
How long does the treatment with Labetalol last?
Labetalol’s effect can go up to 6 to 8 hours. The dosage needed is two to three times daily to control the blood pressure. The duration of effect also depends on the medication form and other factors.
What are the Labetalol benefits?
This medicine relaxes heart blood vessels and lowers blood pressure. It reduces risks of cardiac complications. It is also a useful product for relief in hypertensive emergencies. Also, it is safe for use during pregnancy. It enhances blood flow by slowing the heart and relaxing blood vessels.
What is the Labetalol dosage and administration?
For adults, oral dose begins at 100mg two times daily. The doctor may adjust the dose by monitoring health conditions. For intravenous administration, the dose is 20mg over one minute to start with. This dose is then repeated every 5 to 10 minutes in case high blood pressure continues. The maximum dose is 300mg.
What are the Labetalol side effects?
Common side effects include dizziness, fatigue, nausea, slow heart rate, headache, and erectile dysfunction. Rare but serious effects include liver damage, heart failure, allergic reactions, and breathing difficulties.​
What are Labetalol’s precautions and contraindications?
Caution must be taken for using this medicine in people with liver disease, bradycardia, heart failure, and asthma. Contraindications are heart block, allergy to the medicine contents, cardiogenic shock, and severe bradycardia. Do not suddenly stop taking the medicine as it may cause withdrawal and lead to sudden and unsafe blood pressure changes.