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Metaproterenol Syrup

What is this medication?

METAPROTERENOL (met a proe TER e nole) treats lung diseases, such as asthma, where the airways in the lungs narrow, causing breathing problems or wheezing (bronchospasm). It works by opening the airways of the lungs, making it easier to breathe.

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

COMMON BRAND NAME(S): Metaprel

What should I tell my care team before I take this medication?

They need to know if you have any of the following conditions:

  • Diabetes
  • Heart disease
  • High blood pressure
  • High thyroid levels
  • Irregular heartbeat or rhythm
  • Seizures
  • An unusual or allergic reaction to metaproterenol, other medications, foods, dyes, or preservatives
  • Pregnant or trying to get pregnant
  • Breastfeeding

How should I use this medication?

Take this medication by mouth. Take it as directed on the prescription label at the same time every day. Use a specially marked oral syringe, spoon, or dropper to measure each dose. Ask your pharmacist if you do not have one. Household spoons are not accurate. Keep taking it unless your care team tells you to stop.

Talk to your care team about the use of this medication in children. While it may be given to children as young as 6 years for selected conditions, precautions do apply.

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?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, use only that dose. Do not take double or extra doses.

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What may interact with this medication?

Do not take this medication with any of the following:

  • Cisapride

This medication may also interact with the following:

  • Certain medications for depression, such as like amitriptyline
  • MAOIs, such as Marplan, Nardil, and Parnate

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 medication?

Visit your care team for regular checks on your progress. Tell your care team if your symptoms do not start to get better or if they get worse.

What side effects may I notice from receiving this medication?

Side effects that you should report to your care team as soon as possible:

  • Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat
  • Heart rhythm changes—fast or irregular heartbeat, dizziness, feeling faint or lightheaded, chest pain, trouble breathing
  • Increase in blood pressure

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

  • Headache
  • Nausea
  • Tremors or shaking

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 medication?

Keep out of the reach of children and pets.

Store at room temperature below 30 degrees C (86 degrees F). Protect from light. Get rid of any unused medication after the expiration date.

To get rid of medications that are no longer needed or have expired:

  • Take the medication to a medication take-back program. Check with your pharmacy or law enforcement to find a location.
  • If you cannot return the medication, check the label or package insert to see if the medication should be thrown out in the garbage or flushed down the toilet. If you are not sure, ask your care team. If it is safe to put it in the trash, pour the medication out of the container. Mix the medication with cat litter, dirt, coffee grounds, or other unwanted substance. Seal the mixture in a bag or container. Put it in the trash.

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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Note: Introduction and Additional Common Questions written and medically approved by Cleveland Clinic professionals.

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