Amlodipine

General
  • Type: Antihypertensive (dihydropyridine-CCB)
  • Dosage Forms: tablet
  • Dosage Strengths: 2.5mg, 5mg, 10mg
  • Routes of Administration: PO
  • Common Trade Names: Norvasc

Adult Dosing
  1. hypertension
    • 5-10mg PO qDaily
    • Start: 5mg PO qDaily for intial antihypertesnive, do 2.5 if elderly or 2nd line drug

Pediatric Dosing
  1. hypertension
    • 2.5-5mg PO qDaily

Special Populations
  • Pregnancy Rating: C
  • Lactation: Safety Unknown
  • Renal Dosing
    • Adult: no adjustment
    • Pediatric: no adjustment
  • Hepatic Dosing
    • Adult: Start at 2.5mg qDaily
    • Pediatric: not defined

Contraindications
  • Allergy to class/drug
  • Severe CAD, AS, CHF
  • Re-dose/Caution: Elderly/Hepatic Impairment

Adverse Reactions

Serious
  • Angina, MI
  • Hypotension
  • Hepatitis
  • Erythema multiforme

Common
  • Peripheral edema
  • Fatigue
  • Palpitations
  • Dizziness
  • Nausea
  • Flushing
  • Eczematous eruptions

Pharmacology
  • Half-life: 30-50h
  • Metabolism: liver extensively; CYP450: 3A4
  • Excretion: urine 59-62% (5-10% unchanged), bile/feces 20-25%
  • Mechanism of Action: CCB-dihydropyridine

See Also

References
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