Britanyl 20 Tablets x 2.5mg

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Medicine

Detail Description

Britanyl 20 Tablets × 2.5 mg Specification

Requires Prescription (YES/NO)
Yes — Terbutaline is a prescription-only bronchodilator 

Generics
Terbutaline sulfate (a selective β₂-adrenergic agonist bronchodilator) .

Used For

  • Treatment of bronchospasm in conditions like asthma, chronic bronchitis, and emphysema

  • Relief from wheezing, chest tightness, and shortness of breath.

How It Works
Terbutaline selectively stimulates β₂-adrenergic receptors in the bronchial smooth muscle, increasing cyclic AMP and leading to smooth muscle relaxation and bronchodilation.

Usage and Safety

Dosage

  • Adults (maintenance): Start with 2.5 mg three times daily; may increase to 5 mg three times daily if needed, not exceeding ~15 mg/day.

  • Pediatric use (<12 years): Not recommended—not established as safe or effective 

Side Effects
Frequently reported effects include:

  • Nervousness, tremor, headache, fast or irregular heartbeat

  • Dizziness, nausea, sweating, restlessness, dry mouth 
    Overdose may lead to palpitations, tremors, arrhythmias, hypokalemia, and hyperglycemia.

Drug Interactions & Precautions

  • Interactions:

    • Combined use with nonselective β-blockers (e.g., propranolol, labetalol) may negate the effect of terbutaline 

    • Other medications (antiarrhythmics, etc.) may increase arrhythmia risk 

  • Precautions:

    • Use cautiously in patients with cardiovascular disease, diabetes, or electrolyte imbalances .

    • Monitor heart rate, blood pressure, and potassium levels in at-risk individuals.

Indication
Indicated for relief and prevention of bronchospasm associated with asthma and COPD-related lung diseases.

When Not to Use (Contraindications)
Contraindicated in cases of known hypersensitivity to terbutaline or its formulations/

Precautions

  • Use with caution in patients with:

    • Severe heart disease (e.g., ischemic heart disease, arrhythmias)

    • Thyrotoxicosis

    • Diabetes or risk of hypokalemia.

Additional Information

Pregnancy & Lactation
Use with caution during pregnancy, especially near term, due to potential tocolytic effects. Terbutaline is excreted in breast milk but is unlikely to adversely affect the infant at therapeutic doses .

Storage (YES/NO)
Typically stored at room temperature in a cool, dry place—avoid direct light and heat (standard for oral tablets).