Adult Dosing

Asthma

• 20 mg PO tid-qid

Pediatric Dosing

Asthma

• 6-9 yrs or weight <60 lbs: 10 mg PO tid-qid
• 9 yrs or weight >60 lbs: 20 mg PO tid-qid

• Not recommended for use in children <6 yrs
• Titrate the dosage according to individual patient's response to therapy

• Bronchodilator for bronchial asthma and for reversible bronchospasm occurring in association with bronchitis and emphysema

• Hypersensitivity to any of the ingredients of the product
• Cardiac arrhythmias associated with tachycardia

• N/A

Renal Dose Adjustment

• Renal impairment: No dose adjustments
• Hemodialysis: Dose adjustments not defined

Hepatic Dose Adjustment

• Hepatic impairment: Dose adjustments not defined

See Supplemental Patient Information

• Exercise extreme care with respect to the administration of additional sympathomimetic agents
• Expect significant changes in systolic and diastolic blood pressure in some patients after using any beta adrenergic bronchodilator
• Allow sufficient interval of time to elapse prior to administration of another sympathomimetic agent

Cautions: Use cautiously in:

• CV disorders
• Ischemic heart disease
• Hypertension
• Cardiac arrhythmias
• Hyperthyroidism
• Diabetes mellitus
• Patients who are unusually responsive to sympathomimetic amines
• Convulsive disorders

Supplemental Patient Information

• Advise patients to avoid using this drug more often than prescribed. Instruct them to promptly consult a physician on persistence of symptoms

Pregnancy Category:C

Breastfeeding: Safety unknown; no published literature exist on the use of metaproterenol by oral or by inhalation during lactation, Data from the related drug, terbutaline, indicate that very less amount of drug is excreted into breastmilk. This information is based upon LactMed database (available at http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT last accessed 12 February 2011. Manufacturer advises to use this drug during lactation only if the potential benefit justifies the possible risk to the newborn.

• CV: Cardiac arrest, palpitations, tachycardia
• RESP: Bronchoconstriction, paradoxical bronchospasm, exacerbation of asthma
• CNS: Nervousness, tremor, dizziness, headache
• GI: GI distress, nausea
• MISC: Acute hypersensitivity, flushing

• Sympathomimetic, bronchodilator; exhibits stimulation through beta adrenergic receptors of intracellular adenyl cyclase, increases c-AMP levels, relaxes bronchial smooth muscle and inhibits mediators of immediate hypersensitivity especially from mast cells
• <10% of the drug is absorbed intact
• Metabolized by liver; CYP450: Unknown
• Excreted in urine
• Half life: Unknown

US Trade Name(s)

• Only generic available

US Availability

metaproterenol (generic)

• TABS: 10, 20 mg
• SYRUP: 10 mg/5mL

Canadian Trade Name(s)

• N/A

Canadian Availability

• N/A

UK Trade Name(s)

• N/A

UK Availability

• N/A

Australian Trade Name(s)

• N/A

Australian Availability

• N/A

Pulmonary

Bronchodilators

Beta Agonists (Oral)

Allergy & Immunology

Bronchodilators

Beta Agonists (Oral)

Drug Name: Metaproterenol Sulfate 10 MG Oral Tablet

Ingredient(s): Metaproterenol

Imprint: Par;258

Color(s): White

Shape: Round

Size (mm): 8.00

Score: 2

Inactive Ingredient(s): collodal silicon dioxide / corn starch / lactose anhydrous / magnesium stearate / microcrystalline cellulose / pregelatinized starch

Drug Label Author:
Par Pharmaceutical Inc

DEA Schedule:
Non-Scheduled

Drug Name: Metaproterenol Sulfate 20 MG Oral Tablet

Ingredient(s): Metaproterenol

Imprint: Par;259

Color(s): White

Shape: Round

Size (mm): 9.00

Score: 2

Inactive Ingredient(s): collodal silicon dioxide / corn starch / lactose anhydrous / magnesium stearate / microcrystalline cellulose / pregelatinized starch

Drug Label Author:
Par Pharmaceutical Inc

DEA Schedule:
Non-Scheduled