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Pronunciation |
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(kor
ti koe TROE
pin) |
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U.S. Brand
Names |
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Acthar®; H.P. Acthar®
Gel |
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Generic
Available |
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Yes |
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Synonyms |
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ACTH; Adrenocorticotropic Hormone; Corticotropin, Repository |
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Pharmacological Index |
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Corticosteroid, Parenteral |
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Use |
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Acute exacerbations of multiple sclerosis; diagnostic aid in adrenocortical
insufficiency, severe muscle weakness in myasthenia gravis |
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Pregnancy Risk
Factor |
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C |
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Contraindications |
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Scleroderma; osteoporosis; systemic fungal infections; ocular herpes simplex;
peptic ulcer; hypersensitivity to corticotropin or any
component |
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Adverse
Reactions |
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>10%:
Central nervous system: Insomnia, nervousness
Gastrointestinal: Increased appetite, indigestion
1% to 10%:
Dermatologic: Hirsutism
Endocrine & metabolic: Diabetes mellitus
Neuromuscular & skeletal: Arthralgia
Ocular: Cataracts
Respiratory: Epistaxis |
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Drug
Interactions |
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Decreased effect: Can antagonize the effect of anticholinesterases (eg,
neostigmine) in patients with myasthenia gravis
Decreased corticotropin levels with barbiturates |
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Stability |
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Store repository injection in the refrigerator; reconstituted solution
remains stable for 24 hours to 7 days when refrigerated depending on product;
warm gel before administration |
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Mechanism of
Action |
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Stimulates the adrenal cortex to secrete adrenal steroids (including
hydrocortisone, cortisone), androgenic substances, and a small amount of
aldosterone |
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Usual Dosage |
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Injection has a rapid onset and duration of activity of approximately 2
hours; the repository injection has a slower onset, but may sustain effects for
less than or equal to 3 days
Anti-inflammatory/immunosuppressant:
I.M., I.V., S.C. (aqueous): 1.6 units/kg/day or 50 units/m2/day
divided every 6-8 hours
I.M. (gel): 0.8 units/kg/day or 25 units/m2/day divided every
12-24 hours
Infantile spasms: Various regimens have been used. Some neurologists
recommend low-dose ACTH (5-40 units/day) for short periods (1-6 weeks), while
others recommend larger doses of ACTH (40-160 units/day) for long periods of
treatment (3-12 months). Well designed comparative dosing studies are needed.
Example of low dose regimen:
Initial: I.M. (gel): 20 units/day for 2 weeks, if patient responds, taper and
discontinue; if patient does not respond, increase dose to 30 units/day for 4
weeks then taper and discontinue
I.M. usual dose (gel): 20-40 units/day or 5-8 units/kg/day in 1-2 divided
doses; range: 5-160 units/day
Oral prednisone (2 mg/kg/day) was as effective as I.M. ACTH gel (20
units/day) in controlling infantile spasms
Adults: Acute exacerbation of multiple sclerosis: I.M.: 80-120 units/day for
2-3 weeks
Diagnostic purposes: I.V.: 10-25 units in 500 mL 5% dextrose in water infused
over 8 hours
Repository injection: I.M., S.C.: 40-80 units every 24-72 hours
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Dietary
Considerations |
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May increase renal loss of potassium, calcium, zinc, and vitamin C; may need
to increase dietary intake or give supplements |
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Administration |
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Reconstitute powder with 1-2 mL sterile water or NS. I.V. infusion - do not
use gel; dissolve 10-25 units into 500 mL D5W and administer over 8
hours. |
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Mental Health: Effects
on Mental Status |
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Insomnia and nervousness are common; may cause euphoria or
hallucinations |
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Mental Health:
Effects on Psychiatric
Treatment |
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Barbiturates may decrease the levels of corticotropin |
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Dental Health: Local
Anesthetic/Vasoconstrictor
Precautions |
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No information available to require special precautions |
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Dental Health:
Effects on Dental Treatment |
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No effects or complications reported |
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Patient
Information |
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Do not abruptly discontinue the medication; your physician may want you to
follow a low salt/potassium rich diet; tell physician you are using this drug
before having skin tests, before surgery, or emergency treatment if you get a
serious infection or injury |
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Nursing
Implications |
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Do not administer zinc hydroxide suspension S.C. or I.V.; do not abruptly
discontinue the medication |
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Dosage Forms |
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Injection, repository (H.P. Acthar® Gel): 40 units/mL
(1 mL, 5 mL); 80 units/mL (1 mL, 5 mL)
Powder for injection (Acthar®): 25 units, 40 units
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