Interactions with supplements
Dehydroepiandrosterone (DHEA)
Look Up > Drugs > Fludrocortisone Acetate
Fludrocortisone Acetate
Pronunciation
U.S. Brand Names
Generic Available
Synonyms
Pharmacological Index
Use
Pregnancy Risk Factor
Contraindications
Warnings/Precautions
Adverse Reactions
Overdosage/Toxicology
Drug Interactions
Mechanism of Action
Pharmacodynamics/Kinetics
Usual Dosage
Dietary Considerations
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

Pronunciation
(floo droe KOR ti sone AS e tate)

U.S. Brand Names
Florinef® Acetate

Generic Available

No


Synonyms
Fluohydrisone Acetate; Fluohydrocortisone Acetate; 9a-Fluorohydrocortisone Acetate

Pharmacological Index

Corticosteroid, Oral


Use

Partial replacement therapy for primary and secondary adrenocortical insufficiency in Addison's disease; treatment of salt-losing adrenogenital syndrome


Pregnancy Risk Factor

C


Contraindications

Known hypersensitivity to fludrocortisone; systemic fungal infections


Warnings/Precautions

Taper dose gradually when therapy is discontinued; use with caution with Addison's disease, sodium retention and potassium loss


Adverse Reactions

1% to 10%:

Central nervous system: Convulsions, headache, dizziness

Dermatologic: Acne, rash, bruising

Endocrine & metabolic: Hypokalemic alkalosis, suppression of growth, hyperglycemia, HPA suppression

Gastrointestinal: Peptic ulcer

Neuromuscular & skeletal: Muscle weakness

Ocular: Cataracts

Miscellaneous: Diaphoresis


Overdosage/Toxicology

Symptoms of overdose include hypertension, edema, hypokalemia, excessive weight gain. When consumed in excessive quantities, systemic hypercorticism and adrenal suppression may occur; in those cases, discontinuation and withdrawal of the corticosteroid should be done judiciously.


Drug Interactions

Decreased effect:

Decreased corticosteroid effects by rifampin, barbiturates, and hydantoins

Decreased salicylate levels


Mechanism of Action

Promotes increased reabsorption of sodium and loss of potassium from renal distal tubules


Pharmacodynamics/Kinetics

Absorption: Rapid and complete from GI tract, partially absorbed through skin

Protein binding: 42%

Metabolism: In the liver

Half-life: Plasma: 30-35 minutes; Biological: 18-36 hours

Time to peak serum concentration: Within 1.7 hours


Usual Dosage

Oral:

Adults: 0.1-0.2 mg/day with ranges of 0.1 mg 3 times/week to 0.2 mg/day

Addison's disease: Initial: 0.1 mg/day; if transient hypertension develops, reduce the dose to 0.05 mg/day. Preferred administration with cortisone (10-37.5 mg/day) or hydrocortisone (10-30 mg/day).

Salt-losing adrenogenital syndrome: 0.1-0.2 mg/day


Dietary Considerations

Systemic use of mineralocorticoids/corticosteroids may require a diet with increased potassium, vitamins A, B6, C, D, folate, calcium, zinc, and phosphorus, and decreased sodium. With fludrocortisone a decrease in dietary sodium is often not required as the increased retention of sodium is usually the desired therapeutic effect.


Monitoring Parameters

Monitor blood pressure and signs of edema when patient is on chronic therapy; very potent mineralocorticoid with high glucocorticoid activity; monitor serum electrolytes, serum renin activity, and blood pressure; monitor for evidence of infection


Mental Health: Effects on Mental Status

May cause dizziness


Mental Health: Effects on Psychiatric Treatment

Barbiturates and carbamazepine may decrease corticosteroid effects; useful in the management of psychotropic-induced hypotension


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

Take exactly as directed. Do not take more than prescribed dose and do not discontinue abruptly; consult prescriber. Take with or after meals. Take once-a-day dose with food in the morning. Limit intake of caffeine or stimulants. Maintain adequate nutrition; consult prescriber for possibility of special dietary recommendations. If diabetic, monitor serum glucose closely and notify prescriber of changes; this medication can alter hypoglycemic requirements. Notify prescriber if you are experiencing higher than normal levels of stress; medication may need adjustment. Periodic ophthalmic examinations will be necessary with long-term use. You will be susceptible to infection; avoid crowds or infected persons or persons with contagious diseases. You may experience insomnia or nervousness; use caution when driving or engaging in tasks requiring alertness until response to drug is known. Report weakness, change in menstrual pattern, vision changes, signs of hyperglycemia, signs of infection (eg, fever, chills, mouth sores, perianal itching, vaginal discharge), other persistent side effects, or worsening of condition. Pregnancy/breast-feeding precautions: Inform prescriber if you are or intend to be pregnant. Consult prescriber if breast-feeding.


Nursing Implications

Monitor blood pressure and signs of edema when patient is on chronic therapy; very potent mineralocorticoid with high glucocorticoid activity; monitor serum electrolytes, serum renin activity, and blood pressure; monitor evidence of infection; closely monitor patients with Addison's disease and stop treatment if a significant increase in weight or blood pressure, edema or cardiac enlargement occurs


Dosage Forms

Tablet: 0.1 mg


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