Metaproterenol

Generic name: Metaproterenol (oral)
Dosage form: oral syrup (10 mg/5 mL)
Drug class: Adrenergic bronchodilators

Usage of Metaproterenol

Metaproterenol is a bronchodilator. It works by relaxing muscles in the airways to improve breathing.

Metaproterenol is used to treat conditions such as asthma, bronchitis, and emphysema.

Metaproterenol may also be used for purposes not listed in this medication guide.

Metaproterenol side effects

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Metaproterenol may cause serious side effects. Call your doctor at once if you have:

  • chest pain, fast heart rate;
  • pounding heartbeats or fluttering in your chest;
  • a light-headed feeling, like you might pass out;
  • tremors; or
  • worsening or no improvement in your symptoms.

    • Common side effects of metaproterenol may include:

  • nervousness;
  • headache;
  • dizziness, drowsiness;
  • nausea, diarrhea, upset stomach, dry mouth;
  • tired feeling; or
  • sleep problem (insomnia).

    • This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

    Before taking Metaproterenol

    You should not use metaproterenol if you are allergic to it, or if you have a heart rhythm disorder that causes fast heartbeats.

    To make sure metaproterenol is safe for you, tell your doctor if you have:

  • heart disease, high blood pressure, heart rhythm disorder;
  • epilepsy or another seizure disorder;
  • low levels of potassium in your blood;
  • diabetes; or
  • an overactive thyroid.

    • It is not known whether metaproterenol will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using this medication.

    It is not known whether metaproterenol passes into breast milk or if it could harm a nursing baby. Tell your doctor if you are breast-feeding a baby.

    Metaproterenol should not be given to a child younger than 6 years old.

    Relate drugs

    How to use Metaproterenol

    Usual Adult Dose for Asthma -- Acute:

    20 mg orally 3 to 4 times a dayComments:-Titrate dose according to patient response.

    Usual Adult Dose for Asthma -- Maintenance:

    20 mg orally 3 to 4 times a dayComments:-Titrate dose according to patient response.

    Usual Adult Dose for Chronic Obstructive Pulmonary Disease -- Acute:

    20 mg orally 3 to 4 times a dayComments:-Titrate dose according to patient response.

    Usual Adult Dose for Chronic Obstructive Pulmonary Disease -- Maintenance:

    20 mg orally 3 to 4 times a dayComments:-Titrate dose according to patient response.

    Usual Pediatric Dose for Asthma -- Acute:

    Ages 6 to 9 OR weight under 60 pounds: 10 mg orally 3 to 4 times a dayAdult dose: 20 mg orally 3 to 4 times a dayComments:-Titrate dose according to patient response.

    Usual Pediatric Dose for Asthma -- Maintenance:

    Ages 6 to 9 OR weight under 60 pounds: 10 mg orally 3 to 4 times a dayAdult dose: 20 mg orally 3 to 4 times a dayComments:-Titrate dose according to patient response.

    Usual Pediatric Dose for Chronic Obstructive Pulmonary Disease -- Acute:

    Ages 6 to 9 OR weight under 60 pounds: 10 mg orally 3 to 4 times a dayAdult dose: 20 mg orally 3 to 4 times a dayComments:-Titrate dose according to patient response.

    Usual Pediatric Dose for Chronic Obstructive Pulmonary Disease -- Maintenance:

    Ages 6 to 9 OR weight under 60 pounds: 10 mg orally 3 to 4 times a dayAdult dose: 20 mg orally 3 to 4 times a dayComments:-Titrate dose according to patient response.

    Warnings

    You should not use metaproterenol if you have a heart rhythm disorder that causes fast heartbeats.

    What other drugs will affect Metaproterenol

    Tell your doctor about all medicines you use, and those you start or stop using during your treatment with metaproterenol, especially:

  • an MAO inhibitor--isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, tranylcypromine; or
  • a beta blocker--atenolol, Bisoprolol, carvedilol, labetalol, metoprolol, nadolol, nebivolol, propranolol, sotalol, and others.

    • This list is not complete. Other drugs may interact with metaproterenol, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed in this medication guide.

    Disclaimer

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