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# Walethmade bromide
## Overview
Walethmade bromide is a quaternary ammonium compound with anticholinergic and antispasmodic properties. It is poorly absorbed orally.
## Primary Indications
* Gastrointestinal spasms and hypermotility.
* Biliary colic.
* Renal colic.
* Urinary tract spasms.
## Adult Dosing
* **Oral:** Typically 5 mg to 10 mg every 4 to 6 hours as needed. Maximum dose not clearly established but generally limited by adverse effects.
* **Intramuscular/Intravenous:** Typically 5 mg to 10 mg every 4 to 6 hours as needed.
Specific dosing may vary based on local protocols and the severity of symptoms.
## Pediatric Dosing
Dosing in pediatric patients is not well-established and should be approached with caution. If used, consider a reduced dose based on weight (e.g., 0.1 mg/kg per dose) for oral or parenteral administration, with careful monitoring.
## Dose Adjustments
* **Renal Impairment:** Use with caution. Reduced doses may be necessary due to potential accumulation of bromide ions.
* **Hepatic Impairment:** No specific dose adjustments are typically recommended, but caution is advised.
## Contraindications
* Hypersensitivity to walethmade bromide or other quaternary ammonium compounds.
* Glaucoma (narrow-angle).
* Myasthenia gravis.
* Ileus or obstructive gastrointestinal disease.
* Severe ulcerative colitis.
* Prostatic hypertrophy with urinary retention.
* Tachycardia.
## Adverse Effects
* **Anticholinergic:** Dry mouth, blurred vision, urinary retention, constipation, tachycardia.
* **Neurologic:** Drowsiness, confusion, dizziness.
* **Other:** Nausea, vomiting, rash.
* **Chronic use:** Bromism (neurologic symptoms, psychosis, skin rash, gastrointestinal distress) due to bromide accumulation.
## Key Drug Interactions
* **Other Anticholinergics:** Additive anticholinergic effects.
* **Opioid Analgesics:** Increased risk of ileus.
* **Antacids:** May reduce absorption if given concomitantly. Separate administration.
## Monitoring
* Monitor for signs and symptoms of anticholinergic effects.
* Assess for urinary retention and constipation.
* In patients with chronic use or renal impairment, monitor for signs of bromism.
## Clinical Pearls
* Oral absorption is poor, limiting systemic effects and making it useful for localized GI effects.
* Parenteral administration provides more rapid and potent effects.
* Avoid use in patients prone to glaucoma, urinary retention, or ileus.
* Long-term use carries a risk of bromide accumulation and toxicity (bromism).
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**Disclaimer:** This information is intended for healthcare professionals. Always consult the most current prescribing information and relevant literature for complete and up-to-date details before making clinical decisions. Local protocols and patient-specific factors may necessitate variations from the information provided.
