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# Isoxsuprine hydrochloride
## Overview
Isoxsuprine hydrochloride is a peripheral vasodilator.
## Primary Indications
* Intermittent claudication due to peripheral vascular disease.
* Vasospasm associated with arteriosclerosis obliterans, Buerger's disease, and Raynaud's disease.
* Off-label use for premature labor is not recommended due to lack of efficacy and potential adverse effects.
## Adult Dosing
* **Intermittent claudication/peripheral vascular disease:** 10 mg to 20 mg orally every 3 to 4 times daily.
* **Maximum dose:** Not explicitly defined, but doses exceeding 20 mg per administration are uncommon.
## Pediatric Dosing
No established pediatric dosing.
## Dose Adjustments
No specific dose adjustments for renal or hepatic impairment are established. Use with caution.
## Contraindications
* Hypersensitivity to isoxsuprine.
* Should not be administered in the immediate postpartum period or if there is a possibility of arterial bleeding.
## Adverse Effects
* **Common:** Nausea, vomiting, gastric distress, dizziness, weakness, nervousness, rash.
* **Less common:** Hypotension, tachycardia, flushing, abdominal pain, drowsiness, blurred vision, constipation, diarrhea, headache.
* **Serious:** Hypotension, cardiac arrhythmias.
## Key Drug Interactions
* **Antihypertensives:** May cause additive hypotensive effects. Monitor blood pressure closely.
* **Vasodilators:** Additive effects and increased risk of hypotension.
## Monitoring
* Blood pressure.
* Signs and symptoms of peripheral vascular disease.
* Adverse effects.
## Clinical Pearls
* Efficacy in peripheral vascular disease is controversial.
* Optimal timing of administration relative to meals is not specified, but taking with food may minimize gastric upset.
* Not recommended for use in premature labor.
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*Disclaimer: This information is intended for healthcare professionals. Always consult the most current prescribing information and relevant clinical guidelines before making therapeutic decisions. Dosing and recommendations may vary based on individual patient factors and local protocols.*
