AMIPAREN is a steril injection solution of total amino acids intended For use in hyperalimentation and general parenteral nutrition. AMIPAREN contains relatively larger amounts of branched chain amino Acids (leucine, isoleucine and valine), which suppress protein breakdown and promote protein synthesis in the muscle. A series of preclinical and clinical Studies established that AMIPAREN was effective in sparing protein in various types of insults and malnutrition state.
Composition per 1000 ml :
Total free amino acids : 100 g
Essential amino acids (E) : 59.10 g
Non-essential amino acids (N) : 40.90 g
E / N ratio : 1.44
AMIPAREN is indicated for amino acids supply in the following instances : Hypoproteinemia, malnutrition and pre and or postoperative condition.
Dosage and administration : Central vein infusion :
The usual adult dosage is 400-800 ml per day by drip infusion via the central vein. The dosage may be increased or decreased depending on the patient's age,symptoms and body weight.
Peripheral vein infusion :
The usual adult dosage is 200-400 ml per dose by drip infusion via the peripheral vein.
The usual peripheral infusion rate is such a rate as to provide about 10 g of amino acids over 60 minutes of infusion in order to achieve optimal physiological utilization of amino acids.
A typical infusion rate in adults is 100 ml over 60 minutes (about 25 drops per minute), and the rate should be adjusted downward in the case of children, elderly patients and severely ill patient's.
The dosage may be increased or decreased depending on the patient's age, symptoms and body weight.
Combination of AMIPAREN with a carbohydrate solution is highly recommended for efficients utilization of amino acids in the body.
Pharmacology :
The value of AMIPAREN as a source of amino acids in the nutritional support was Assessed in hyperalimentation therapy using normal rats and insulted rats :
AMIPAREN promptly improved and maintained nitrogen balance.
The solution promoted synthesis of plasma total protein and albumin.
The Urinary 3-methylhistidine / creatinine ratio, an indicator of protein catabolism in the muscle under insult, was low after infusion treatment, indicating a very potent inhibitory efect of the solution on muscle protein breakdown.
The plasma concentrations of free amino acids including branched chain amino acids showed minor fluctuation during infusion treatment. Amino acid metabolism was judged to be steady during AMIPAREN therapy.