Drug Guide

Generic Name

Betamethasone Dipropionate

Brand Names Diprosone, Diprolene, Alphatrex, Diprolene Af, Sernivo

Classification

Therapeutic: Anti-inflammatory, corticosteroid

Pharmacological: Glucocorticoid

FDA Approved Indications

  • Inflammatory skin conditions (eczema, psoriasis, dermatitis)
  • Itching and swelling associated with these conditions

Mechanism of Action

Betamethasone Dipropionate binds to glucocorticoid receptors, leading to modulation of gene expression that results in anti-inflammatory, immunosuppressive, and antiproliferative effects on skin cells.

Dosage and Administration

Adult: Apply a thin layer to affected skin once daily, as directed by physician.

Pediatric: Use with caution; consult specific guidelines. Usually similar application as adults, but monitor for systemic effects.

Geriatric: Use with caution; reduced clearance may occur, monitor for adverse effects.

Renal Impairment: No specific dosage adjustments necessary.

Hepatic Impairment: No specific dosage adjustments necessary.

Pharmacokinetics

Absorption: Minimal systemic absorption when used topically, but absorption can increase with prolonged use or application to large surface areas.

Distribution: Low plasma protein binding when absorbed systemically.

Metabolism: Metabolized in the liver via hepatic enzymes.

Excretion: Excreted primarily in urine.

Half Life: Approximately 36-54 hours when absorbed systemically.

Contraindications

  • Hypersensitivity to betamethasone dipropionate or other corticosteroids.

Precautions

  • Use with caution in skin infections, including tuberculosis or fungal infections. Avoid applying to broken or ulcerated skin. Prolonged use may lead to skin atrophy, systemic absorption, and hypothalamic-pituitary-adrenal (HPA) axis suppression.
  • Pregnancy category C; use only if potential benefits justify risks. Breastfeeding considerations: small amounts may pass into breast milk.

Adverse Reactions - Common

  • Skin itching, burning, irritation (Common)
  • Skin atrophy, striae, telangiectasia (Less common)

Adverse Reactions - Serious

  • Hypopigmentation, systemic corticosteroid effects (hyperglycemia, Cushingoid features), adrenal suppression (Rare, with extensive or prolonged use)

Drug-Drug Interactions

  • Potent CYP3A4 inhibitors (e.g., ketoconazole, ritonavir) may increase systemic corticosteroid levels.

Drug-Food Interactions

N/A

Drug-Herb Interactions

N/A

Nursing Implications

Assessment: Monitor skin condition for improvement or adverse effects. Assess for signs of systemic absorption or HPA suppression during prolonged therapy.

Diagnoses:

  • Risk for skin atrophy, infection, or systemic corticosteroid effects.

Implementation: Apply as prescribed, avoid occlusion unless directed. Use the lowest effective dose for the shortest duration.

Evaluation: Verify resolution of skin inflammation, monitor for adverse effects, and adjust therapy accordingly.

Patient/Family Teaching

  • Use medication exactly as prescribed. Do not cover the treated area with occlusive bandages unless instructed.
  • Report signs of skin thinning, new infections, or systemic symptoms.
  • Avoid applying to face, groin, or underarms unless directed.

Special Considerations

Black Box Warnings:

  • Prolonged use of topical corticosteroids can lead to systemic absorption resulting in HPA suppression, especially in children.
  • Use caution in fragile skin areas.

Genetic Factors: Variations in glucocorticoid receptor sensitivity may affect response.

Lab Test Interference: May increase blood glucose levels during systemic absorption.

Overdose Management

Signs/Symptoms: Features of systemic corticosteroid excess, such as Cushing syndrome, hyperglycemia.

Treatment: Discontinue corticosteroid use gradually to prevent adrenal insufficiency. Supportive therapy as needed.

Storage and Handling

Storage: Store at room temperature, 20-25°C (68-77°F). Keep away from heat and flame.

Stability: Stable until expiration date given on package.

This guide is for educational purposes only and is not intended for clinical use.