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

Pronunciation
(thye roe TROE pin)

U.S. Brand Names
Thytropar®

Generic Available

No


Synonyms
Thyroid Stimulating Hormone; Thyrotropic Hormone; TSH

Pharmacological Index

Diagnostic Agent, Thyroid Function


Use

Diagnostic aid to differentiate thyroid failure; diagnosis of decreased thyroid reserve, to differentiate between primary and secondary hypothyroidism and between primary hypothyroidism and euthyroidism in patients receiving thyroid replacement


Pregnancy Risk Factor

C


Contraindications

Coronary thrombosis, untreated Addison's disease, hypersensitivity to thyrotropin or any component


Warnings/Precautions

Use with caution in patients with angina pectoris or cardiac failure, patients with hypopituitarism, adrenal cortical suppression as may be seen with corticosteroid therapy; may cause thyroid hyperplasia


Adverse Reactions

<1%: Tachycardia, fever, headache, menstrual irregularities, nausea, vomiting, increased bowel motility, anaphylaxis with repeated administration


Overdosage/Toxicology

Symptoms of overdose include weight loss, nervousness, sweating, tachycardia, insomnia, heat intolerance, menstrual irregularities, headache, angina pectoris, CHF

Acute massive overdose may require cardiac glycosides for CHF; fever should be controlled with the help of acetaminophen; antiadrenergic agents, particularly propranolol 1-3 mg I.V. every 6 hours or 80-160 mg/day, can be used to treat increased sympathetic activity.


Drug Interactions

No data reported


Stability

Refrigerate at 2°C to 8°C (36°F to 46°F) after reconstitution; use within 2 weeks


Mechanism of Action

Stimulates formation and secretion of thyroid hormone, increases uptake of iodine by thyroid gland


Pharmacodynamics/Kinetics

Half-life: 35 minutes, dependent upon thyroid state

Elimination: Rapidly by the kidney in the urine


Usual Dosage

Adults: I.M., S.C.: 10 units/day for 1-3 days; follow by a radioiodine study 24 hours past last injection, no response in thyroid failure, substantial response in pituitary failure


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

You will receive this medication for 3 days prior to the radiologic studies. You may experience some nausea or vomiting. Report dizziness, faintness, palpitations, or any respiratory difficulties. Pregnancy precautions: Inform prescriber if you are or intend to be pregnant.


Dosage Forms

Injection: 10 units


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