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Glucagon
Pronunciation
U.S. Brand Names
Generic Available
Pharmacological Index
Use
Pregnancy Risk Factor
Contraindications
Warnings/Precautions
Adverse Reactions
Overdosage/Toxicology
Drug Interactions
Stability
Mechanism of Action
Pharmacodynamics/Kinetics
Usual Dosage
Monitoring Parameters
Mental Health: Effects on Mental Status
Mental Health: Effects on Psychiatric Treatment
Dental Health: Local Anesthetic/Vasoconstrictor Precautions
Dental Health: Effects on Dental Treatment
Patient Information
Nursing Implications
Dosage Forms
References

Pronunciation
(GLOO ka gon)

U.S. Brand Names
Glucagen®

Generic Available

No


Pharmacological Index

Antidote; Diagnostic Agent, Gastrointestinal


Use

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


Pregnancy Risk Factor

B


Contraindications

Hypersensitivity to glucagon or any component


Warnings/Precautions

Use with caution in patients with a history of insulinoma and/or pheochromocytoma


Adverse Reactions

1% to 10%:

Dermatologic: Urticaria

Gastrointestinal: Nausea, vomiting

Respiratory: Respiratory distress


Overdosage/Toxicology

Symptoms of overdose include hypokalemia, nausea, vomiting


Drug Interactions

Increased toxicity: Oral anticoagulant - hypoprothrombinemic effects may be increased possibly with bleeding


Stability

After reconstitution, use immediately; may be kept at 5°C for up to 48 hours if necessary


Mechanism of Action

Stimulates adenylate cyclase to produce increased cyclic AMP, which promotes hepatic glycogenolysis and gluconeogenesis, causing a raise in blood glucose levels


Pharmacodynamics/Kinetics

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


Usual Dosage

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


Monitoring Parameters

Blood pressure, blood glucose


Mental Health: Effects on Mental Status

None reported


Mental Health: Effects on Psychiatric Treatment

None reported


Dental Health: Local Anesthetic/Vasoconstrictor Precautions

No information available to require special precautions


Dental Health: Effects on Dental Treatment

No effects or complications reported


Patient Information

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.


Nursing Implications

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


Dosage Forms

Powder for injection, lyophilized: 1 mg [1 unit]; 10 mg [10 units]


References

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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