Distribution half-life
The time required for a peptide to distribute from the bloodstream into tissues during the initial distribution phase. Typically much shorter than the elimination half-life.
Frequently Asked Questions
What is Distribution half-life?
Why is Distribution half-life important in peptide research?
Related Terms
The time required for the blood concentration of a peptide to decrease by 50% during the elimination phase. Determines how long a peptide remains active and how frequently it must be dosed.
Volume of distributionA pharmacokinetic parameter relating the total amount of drug in the body to the plasma concentration. A large Vd indicates extensive tissue distribution; a small Vd suggests the peptide stays primarily in the bloodstream.
Half-lifeThe time required for the concentration of a peptide in the body to decrease by half. Determines dosing frequency — short half-life peptides (minutes) need daily dosing, while long half-life peptides (days) can be dosed weekly.