Please check your internet connection and try again.
# Hepamerz (l-ornithine l-aspartate)
## Overview
Hepamerz is a combination of two amino acids, ornithine and aspartate, used in the management of hyperammonemia, particularly in patients with liver disease. It is thought to promote ammonia detoxification by stimulating the urea cycle and glutamine synthesis.
## Primary Indications
* Treatment of overt hepatic encephalopathy (HE) in patients with cirrhosis.
## Adult Dosing
* **Hepatic Encephalopathy:** Typically administered intravenously as an infusion. Common regimens include:
* 30 grams (g) per day infused over 24 hours.
* Alternatively, 5-10 grams infused over 30-60 minutes, repeated up to 3 times daily.
* The exact dosing regimen and duration should be guided by clinical response and local protocol.
## Pediatric Dosing
* Limited data available for pediatric use. Dosing in pediatric patients should be individualized and supervised by a clinician experienced in pediatric liver disease.
## Dose Adjustments
* No specific dose adjustments are typically required for renal or hepatic impairment, as the drug is intended for patients with liver dysfunction. However, caution is advised in severe renal impairment.
## Contraindications
* Hypersensitivity to l-ornithine l-aspartate or any of its excipients.
* Severe renal insufficiency (creatinine clearance < 25 mL/min) due to potential accumulation of amino acids.
## Adverse Effects
* **Common:** Nausea, vomiting, abdominal discomfort, diarrhea, flatulence.
* **Less Common:** Headache, dizziness, fatigue, skin reactions.
* **Rare:** Allergic reactions.
## Key Drug Interactions
* No significant drug interactions have been definitively established, but caution should be exercised when co-administering with other medications affecting ammonia levels or liver function.
## Monitoring
* Clinical signs and symptoms of hepatic encephalopathy (e.g., mental status, asterixis).
* Serum ammonia levels (though correlation with clinical response can be variable).
* Electrolytes and renal function, particularly in patients with comorbidities.
## Clinical Pearls
* Hepamerz is primarily used for acute management of hepatic encephalopathy and may be used as an adjunct to other therapies.
* Oral formulations may be used for maintenance therapy, but data supporting their efficacy in severe HE is less robust.
* The mechanism involves stimulating the urea cycle in the liver and reducing ammonia levels in the blood.
***
*Please verify the current prescribing information for the most up-to-date and complete drug details.*
