What is this medicine?

LABETALOL (la BET a lole) is a beta-blocker. Beta-blockers reduce the workload on the heart and help it to beat more regularly. This medicine is used to treat high blood pressure.

This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.

COMMON BRAND NAME(S): Normodyne, Trandate

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:

  • diabetes
  • history of heart attack, heart disease, or heart failure
  • kidney disease
  • liver disease
  • lung or breathing disease, like asthma or emphysema
  • pheochromocytoma
  • an unusual or allergic reaction to labetalol, other beta-blockers, medicines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast-feeding

How should I use this medicine?

This medicine is for injection or infusion into a vein. It is usually given by a health-care professional in a hospital or clinic setting.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.

NOTE: This medicine is only for you. Do not share this medicine with others.

What if I miss a dose?

This does not apply.

What may interact with this medicine?

This medicine may interact with the following medications:

  • certain medicines for blood pressure, heart disease, irregular heart beat
  • cimetidine
  • general anesthetics
  • medicines for asthma or lung disease like albuterol
  • medicines for depression
  • nitroglycerin

This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.

What should I watch for while using this medicine?

After your blood pressure and heart rate have been steadied with this medicine, your doctor or health care professional may want you to take medicine by mouth. Regular checks on your heart rate and blood pressure are necessary.

You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this drug affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol can make you more drowsy and dizzy. Avoid alcoholic drinks.

This medicine may increase blood sugar. Ask your healthcare provider if changes in diet or medicines are needed if you have diabetes.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:

  • allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
  • breathing problems
  • cold hands or feet
  • dark urine
  • depression
  • general ill feeling or flu-like symptoms
  • irregular heartbeat
  • light-colored stools
  • loss of appetite, nausea
  • pain or trouble passing urine
  • right upper belly pain

signs and symptoms of high blood sugar such as being more thirsty or hungry or having to urinate more than normal. You may also feel very tired or have blurry vision.

  • slow heart rate (fewer than recommended by your doctor or health care professional)
  • swollen legs or ankles
  • tingling of the scalp or skin
  • unusually weak
  • vomiting
  • yellowing of the eyes or skin

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • decreased sexual function or desire
  • dry itching skin
  • headache
  • tiredness

This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Where should I keep my medicine?

This drug is given in a hospital or clinic and will not be stored at home.

NOTE: This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.

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