Please check your internet connection and try again.
# Hyoscine butylbromide (Buscopan)
## Overview
Hyoscine butylbromide is an anticholinergic medication that works by blocking muscarinic receptors, leading to smooth muscle relaxation. It is primarily used for its antispasmodic effects.
## Primary Indications
* Symptomatic relief of abdominal cramping and pain associated with gastrointestinal spasms, such as irritable bowel syndrome (IBS).
* Pre-procedural bowel preparation to reduce fecal burden and improve visualization in diagnostic procedures like colonoscopy.
## Adult Dosing
* **Oral:** 10-20 mg three times daily. Maximum daily dose: 100 mg.
* **Intramuscular/Intravenous:** 20 mg every 6-8 hours as needed. Typically administered by healthcare professionals. Maximum daily dose: 100 mg.
## Pediatric Dosing
Dosing in children is less established and should be guided by clinical judgment and available product information, often at lower doses than adults.
* **Oral:** Dosing varies by age and weight. For children over 6 years: 10 mg two to three times daily. Younger children's dosing should be individualized, often starting at 5 mg.
* **Intramuscular/Intravenous:** Use in children is generally not recommended unless under strict medical supervision and for specific indications.
## Dose Adjustments
No specific dose adjustments are routinely required for hepatic or renal impairment.
## Contraindications
* Hypersensitivity to hyoscine butylbromide or any excipients.
* Narrow-angle glaucoma.
* Myasthenia gravis.
* Tachyarrhythmias.
* Mega colon.
* Ileus or intestinal atony.
* Prostatic hypertrophy with urinary retention.
* Lactation.
## Adverse Effects
Common adverse effects include dry mouth, blurred vision, drowsiness, and urinary hesitancy. Less common effects include tachycardia, constipation, and allergic reactions.
## Key Drug Interactions
* **Other anticholinergics:** Additive anticholinergic effects (e.g., tricyclic antidepressants, antihistamines).
* **Dopamine antagonists:** May reduce the efficacy of prokinetic agents like metoclopramide.
* **Beta-agonists:** May increase heart rate.
## Monitoring
Monitor for therapeutic effectiveness and signs of anticholinergic side effects, especially in elderly patients or those with pre-existing conditions.
## Clinical Pearls
* Hyoscine butylbromide acts locally on the gut and has minimal systemic anticholinergic effects compared to other agents like hyoscine hydrobromide, making it a preferred option for GI spasms.
* IV administration can provide rapid relief for acute, severe spasms.
* Caution is advised in patients with glaucoma, tachycardia, or urinary retention.
***
*Disclaimer: This information is intended for healthcare professionals and should not substitute for consulting the official Prescribing Information or Summary of Product Characteristics. Always verify current dosing, safety information, and local protocols before prescribing.*
