Half-Life (t1/2)

t1/2
Pharmacokinetics

The time required for the plasma concentration of a drug to decrease by 50%. Determines dosing frequency and time to reach steady state (approximately 5 half-lives). Influenced by clearance and volume of distribution.

Örnekler

  • Aspirin: ~20 min
  • Metformin: ~6 hours
  • Amiodarone: ~40-55 days

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The time required for the plasma concentration of a drug to decrease by 50%. Determines dosing frequency and time to reach steady state (approximately 5 half-lives). Influenced by clearance and …