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Pronunciation |
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(GLOO
ka
gon) |
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U.S. Brand
Names |
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Glucagen® |
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Generic
Available |
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No |
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Pharmacological Index |
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Antidote; Diagnostic Agent, Gastrointestinal |
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Use |
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Management of hypoglycemia; diagnostic aid in the radiologic examination of
GI tract when a hypnotic state is needed; used with some success as a cardiac
stimulant in management of severe cases of beta-adrenergic blocking agent
overdosage |
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Pregnancy Risk
Factor |
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B |
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Contraindications |
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Hypersensitivity to glucagon or any component |
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Warnings/Precautions |
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Use with caution in patients with a history of insulinoma and/or
pheochromocytoma |
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Adverse
Reactions |
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1% to 10%:
Dermatologic: Urticaria
Gastrointestinal: Nausea, vomiting
Respiratory: Respiratory distress |
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Overdosage/Toxicology |
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Symptoms of overdose include hypokalemia, nausea,
vomiting |
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Drug
Interactions |
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Increased toxicity: Oral anticoagulant - hypoprothrombinemic effects may be
increased possibly with bleeding |
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Stability |
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After reconstitution, use immediately; may be kept at
5°C for up to 48 hours if necessary |
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Mechanism of
Action |
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Stimulates adenylate cyclase to produce increased cyclic AMP, which promotes
hepatic glycogenolysis and gluconeogenesis, causing a raise in blood glucose
levels |
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Pharmacodynamics/Kinetics |
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Peak effect on blood glucose levels: Parenteral: Within 5-20 minutes
Duration of action: 60-90 minutes
Metabolism: In the liver with some inactivation occurring in the kidneys and
plasma
Half-life, plasma: 3-10 minutes |
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Usual Dosage |
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Hypoglycemia or insulin shock therapy: I.M., I.V., S.C.:
Children: 0.025-0.1 mg/kg/dose, not to exceed 1 mg/dose, repeated in 20
minutes as needed
Adults: 0.5-1 mg, may repeat in 20 minutes as needed
If patient fails to respond to glucagon, I.V. dextrose must be
given
Diagnostic aid: Adults: I.M., I.V.: 0.25-2 mg 10 minutes prior to procedure
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Monitoring
Parameters |
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Blood pressure, blood glucose |
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Mental Health: Effects
on Mental Status |
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None reported |
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Mental Health:
Effects on Psychiatric
Treatment |
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None reported |
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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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Identify appropriate support person to administer glucagon if necessary.
Follow prescribers instructions for administering glucagon. Review diet, insulin
administration, and testing procedures with prescriber or diabetic
educator. |
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Nursing
Implications |
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Parenteral: Dilute with manufacturer provided diluent resulting in 1 mg/mL;
if doses exceeding 2 mg are used, dilute with sterile water instead of diluent;
administer by direct I.V. injection |
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Dosage Forms |
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Powder for injection, lyophilized: 1 mg [1 unit]; 10 mg [10
units] |
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References |
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Lang DM,
"Anaphylactoid and Anaphylactic Reactions. Hazards of Beta-Blockers," Drug
Saf, 1995, 12(5):299-304.
Lvoff R and Wilcken D,
"Glucagon in Heart Failure and in Cardiogenic Shock - Experience in 50 Patients,"
Circulation, 1972, 45(3):534-42.
Pollack CV Jr, "Utility of Glucagon in the Emergency Department," J Emerg
Med, 1993, 11(2):195-205.
Thoma ME and Glauser JM,
"Use of Glucagon for Removal of an Orogastric Lavage Tube," Am J Emerg
Med, 1995, 13(2):219-22. |
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