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Florinef Acetate Uses, Dosage, Side Effects

Acetate - (floo-droe-kor′ti-sone) - Florinef Acetate

Classifications: ADRENOCORTICAL STEROID; MINERALOCORTICOID

Therapeutic: MINERALOCORTICOID; ANTI-INFLAMMATORY

Pregnancy Category: C

AVAILABILITY

Tablet

ACTION & THERAPEUTIC EFFECT

Long-acting synthetic steroid with potent mineralocorticoid activity. Small doses produce marked sodium retention, increased urinary potassium excretion, and elevated BP. Synthetic corticosteroid replacement product for adrenocortical insufficiency.

USES

Partial replacement therapy for adrenocortical insufficiency and for treatment of salt-losing forms of congenital adrenogenital syndrome.

UNLABELED USES

To increase systolic and diastolic blood pressure in patients with severe hypotension secondary to diabetes mellitus or to levodopa therapy.

CONTRAINDICATIONS

Hypersensitivity to glucocorticoids, idiopathic thrombocytopenic purpura, psychoses, acute glomerulonephritis, viral or bacterial diseases of skin, systemic fungal infections; infections not controlled by antibiotics, active or latent amebiasis, hypercorticism, smallpox vaccination or other immunologic procedures.

CAUTIOUS USE

Diabetes mellitus; chronic, active hepatitis positive for hepatitis B surface antigen; hyperlipidemia; cirrhosis; stromal herpes simplex; glaucoma, tuberculosis of eye; osteoporosis; convulsive disorders; hypothyroidism; diverticulitis; nonspecific ulcerative colitis; fresh intestinal anastomoses; active or latent peptic ulcer; gastritis; esophagitis; thromboembolic disorders; CHF; metastatic carcinoma; hypertension; renal insufficiency; history of allergies; active or arrested tuberculosis; myasthenia gravis; history of psychosis; pregnancy (category C), lactation; children.

ROUTE & DOSAGE

Adrenocortical Insufficiency

Adult: PO 0.1 mg/day, may range from 0.1 mg 3 × wk to 0.2 mg/day

Child: PO 0.05–0.1 mg/day

Salt-Losing Adrenogenital Syndrome

Adult: PO 0.1–0.2 mg/day

Child: PO 0.05–0.1 mg/day

ADMINISTRATION

Oral

Note: Concomitant oral cortisone or hydrocortisone therapy may be advisable to provide substitute therapy approximating normal adrenal activity.
Store in airtight containers at 15°– 30° C (59°–86° F). Protect from light.

ADVERSE EFFECTS (≥1%)

CNS: Vertigo, headache, nystagmus, increased intracranial pressure with papilledema (usually after discontinuation of medication), mental disturbances, aggravation of preexisting psychiatric conditions, insomnia, ataxia (rare). CV: CHF, hypertension, thromboembolism (rare), tachycardia. Endocrine: Suppressed linear growth in children, decreased glucose tolerance; hyperglycemia, manifestations of latent diabetes mellitus; hypocorticism; amenorrhea and other menstrual difficulties. Special Senses: Posterior subcapsular cataracts (especially in children), glaucoma, exophthalmos, increased intraocular pressure with optic nerve damage, perforation of the globe. Metabolic: Hypocalcemia; sodium and fluid retention; hypokalemia and hypokalemic alkalosis, negative nitrogen balance, decreased serum concentration of vitamins A and C. GI: Nausea, increased appetite, ulcerative esophagitis, pancreatitis, abdominal distension, peptic ulcer with perforation and hemorrhage, melena. Hematologic: mThrombocytopenia.

Florinef Acetate Uses, Dosage, Side Effects

Related for Nursing Implications and Drugs Guide Information

Musculoskeletal: (Long-term use) Osteoporosis, compression fractures, muscle wasting and weakness, tendon rupture, aseptic necrosis of femoral and humeral heads. Skin: Skin thinning and atrophy, acne, impaired wound healing; petechiae, ecchymosis, easy bruising; suppression of skin test reaction; hypopigmentation or hyperpigmentation, hirsutism, acneiform eruptions, subcutaneous fat atrophy; allergic dermatitis, urticaria, angioneurotic edema, increased sweating. Body as a Whole: Anaphylactoid reactions (rare), aggravation or masking of infections; malaise, weight gain, obesity. Urogenital: Increased or decreased motility and number of sperm.

INTERACTIONS

Drug: The antidiabetic effects of insulin and SULFONYLUREAS may be diminished; amphotericin B, DIURETICS may increase potassium loss; warfarin may decrease prothrombin time; indomethacin, ibuprofen can potentiate the pressor effect of fludrocortisone; ANABOLIC STEROIDS increase risk of edema and acne; rifampin may increase the hepatic metabolism of fludrocortisone.

PHARMACOKINETICS

Absorption:

Readily from GI tract. Peak: 1.7 h. Metabolism: In liver. Half- Life: 3.5 h.

NURSING IMPLICATIONS

Assessment & Drug Effects

Monitor weight and I&O ratio to observe onset of fluid accumulation, especially if patient is on unrestricted salt intake and without potassium supplement. Report weight gain of 2 kg (5 lb)/wk.
Monitor and record BP daily. If hypertension develops as a consequence of therapy, report to prescriber. Usually, the dose will be reduced to 0.05 mg/day.
Check BP q4–6h and weight at least every other day during periods of dosage adjustment.
Monitor for S&S of hypokalemia and hyperkalemic metabolic alkalosis (see Appendix F).
Monitor lab tests: Periodic serum electrolytes and ABGs during prolonged therapy.

Patient & Family Education

Report signs of hypokalemia (see Appendix F).
Be aware of signs of potassium depletion associated with high sodium intake: Muscle weakness, paresthesias, circumoral numbness; fatigue, anorexia, nausea, mental depression, polyuria, delirium, diminished reflexes, arrhythmias, cardiac failure, ileus, ECG changes.
Eat foods with high potassium content.
Signs of edema should be reported immediately. Sodium intake may or may not require regulation, depending on individual needs and clinical situation.
Weigh daily under standard conditions and report steady weight gain.
Report intercurrent infection, trauma, or unexpected stress of any kind promptly when taking maintenance therapy.
Carry medical identification at all times.

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