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# Isoxsuprine hydrochloride
## Overview
Isoxsuprine hydrochloride is a vasodilator that acts directly on vascular smooth muscle. It is also a beta-adrenergic agonist.
## Primary Indications
* Peripheral vascular disease (e.g., intermittent claudication)
* Cerebrovascular insufficiency
## Adult Dosing
* The typical dose is 10 mg to 20 mg orally every 4 to 6 hours.
* Maximum daily dose is not well-established, but doses higher than 20 mg every 4-6 hours are generally not recommended.
## Pediatric Dosing
* There is no established pediatric dosing for isoxsuprine hydrochloride.
## Dose Adjustments
* No specific dose adjustments are recommended for hepatic or renal impairment. However, caution is advised due to potential accumulation.
## Contraindications
* Hypersensitivity to isoxsuprine.
* Use in patients with congenital heart disease or arrhythmias is generally not recommended.
## Adverse Effects
* Common: Flushing, gastrointestinal upset (nausea, vomiting, abdominal distress), dizziness, weakness, headache.
* Less common: Hypotension, tachycardia, rash, blurred vision.
## Key Drug Interactions
* Antihypertensives: May potentiate hypotensive effects.
* Other vasodilators: Additive hypotensive effects.
## Monitoring
* Blood pressure and heart rate.
* Signs and symptoms of peripheral vascular disease improvement.
## Clinical Pearls
* Efficacy in the treatment of peripheral vascular disease is controversial and not strongly supported by current evidence.
* Administer oral doses with food or milk to minimize gastrointestinal upset.
* Avoid use in patients where a drop in blood pressure could be detrimental.
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**Disclaimer:** This information is intended for healthcare professionals and should not replace clinical judgment. Always consult the most current prescribing information and institutional protocols before making any treatment decisions.
