Generic name: Corticorelin ovine triflutate 100ug in 2mL
Dosage form: injection, powder, lyophilized, for solution
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A single intravenous dose of ACTHREL® at 1 mcg/kg is recommended for the testing of pituitary corticotrophin function. A dose of 1 mcg/kg is the lowest dose that produces maximal cortisol responses and significant (though apparently sub-maximal) ACTH responses. Doses above 1 mcg/kg are not recommended (see PRECAUTIONS and ADVERSE REACTIONS).
At a dose of 1 mcg/kg, the ACTH and cortisol responses to ACTHREL® are prolonged and remain elevated for up to 2 hours. The maximum increment in plasma ACTH occurs between 15 and 60 minutes after ACTHREL® administration, whereas the maximum increment in plasma cortisol occurs between 30 and 120 minutes. In a clinical study of 30 normal healthy men, the peak plasma ACTH and cortisol responses to ACTHREL® administration in the early afternoon occurred at 42 ± 29 minutes and 65 ± 26 minutes (average ±SD), respectively. If a repeated evaluation using the corticorelin stimulation test with ACTHREL® is needed, it is recommended that the repeat test be carried out at the same time of day as the original test because there are differences in basal levels and peak response levels following a.m. or p.m. administration to normal humans.
ACTHREL® is to be reconstituted aseptically with 2 mL of Sodium Chloride injection, USP (0.9% sodium chloride), at the time of use by injecting 2 mL of the saline diluent into the lyophilized drug product cake. To avoid bubble formation, DO NOT SHAKE the vial; instead, roll the vial to dissolve the product. The sterile solution containing 50 mcg corticorelin/mL is then ready for injection by the intravenous route. The dosage to be administered is determined by the patient's weight (1 mcg corticorelin/kg). Some of the adverse effects can be reduced by administering the drug as an infusion over 30 seconds instead of as a bolus injection.
Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit.
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- Drug class: corticotropin