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# Isoxsuprine hydrochloride
## Overview
Isoxsuprine hydrochloride is a peripheral vasodilator used to improve blood flow.
## Primary Indications
* Intermittent claudication due to peripheral vascular disease.
* Raynaud's disease.
## Adult Dosing
* **Oral:** 10 mg to 20 mg three to four times daily.
* **Maximum:** Not explicitly defined, but doses exceeding 20 mg four times daily are generally not recommended.
## Pediatric Dosing
* There is no established pediatric dosing for isoxsuprine hydrochloride. Its use in children is generally not recommended.
## Dose Adjustments
* No specific dose adjustments are routinely recommended for hepatic or renal impairment, but caution is advised.
## Contraindications
* Hypersensitivity to isoxsuprine hydrochloride.
* Use in patients with congenital heart disease.
* Do not use in the immediate postpartum period.
## Adverse Effects
* **Common:** Hypotension, flushing, dizziness, nausea, vomiting, abdominal distress, rash, weakness.
* **Serious:** Tachycardia, EKG changes, gastrointestinal bleeding, paradoxical symptoms.
## Key Drug Interactions
* **Antihypertensives:** Isoxsuprine may potentiate the effects of antihypertensive medications, leading to excessive hypotension.
* **Sympathomimetic agents:** Concomitant use may lead to additive cardiovascular effects.
## Monitoring
* Blood pressure.
* Heart rate.
* Symptoms of peripheral vascular disease.
* Signs of adverse effects.
## Clinical Pearls
* Onset of action is typically within 30 minutes, with peak effects at 1-2 hours.
* Effectiveness for the primary indications is debated and not strongly supported by current evidence.
* Use with caution in patients with glaucoma or recent myocardial infarction.
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**Disclaimer:** This information is intended for healthcare professionals. Always consult the most current prescribing information and professional guidelines before making clinical decisions. Local protocols and patient-specific factors may necessitate deviations from this general guidance.
