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# Isoxsuprine Hydrochloride
## Overview
Isoxsuprine hydrochloride is a peripheral vasodilator.
## Primary Indications
* Treatment of peripheral vascular disease (e.g., arteriosclerosis obliterans, Raynaud's disease, intermittent claudication).
* Management of cerebrovascular insufficiency.
## Adult Dosing
* **Typical Dose:** 10 mg to 20 mg by mouth every 3 to 4 times daily.
* **Maximum Dose:** Not clearly established, but doses exceeding 20 mg per administration are uncommon.
## Pediatric Dosing
* **Established Dosing:** There is no established pediatric dosing for isoxsuprine hydrochloride. Use in pediatric patients is generally not recommended.
## Dose Adjustments
* No specific dose adjustments are routinely recommended for hepatic or renal impairment. However, caution should be exercised.
## Contraindications
* Use in patients with congenital heart disease.
* Hypersensitivity to isoxsuprine hydrochloride.
## Adverse Effects
* **Common:** Nausea, vomiting, gastrointestinal distress, dizziness, weakness, nervousness, flushing, rash.
* **Serious:** Hypotension, tachycardia, cardiac arrhythmias, angina exacerbation.
## Key Drug Interactions
* **Antihypertensives:** Isoxsuprine may potentiate the effects of antihypertensive medications, potentially leading to excessive hypotension.
* **Vasodilators:** Additive vasodilatory effects may occur with other vasodilators.
## Monitoring
* Blood pressure and heart rate.
* Symptoms of peripheral vascular disease.
* Signs of adverse effects (e.g., GI upset, dizziness).
## Clinical Pearls
* The efficacy of isoxsuprine in peripheral vascular disease is controversial and not universally supported by robust clinical evidence.
* Onset of action may take several weeks.
* Take with meals to minimize gastrointestinal upset.
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*This information is intended for healthcare professionals and does not substitute for professional medical advice. Always consult the most current prescribing information and your institution's protocols before making clinical decisions.*
