Absorption Half-Life of Drug Calculator

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✖Absorption Rate Constant is the rate at which a drug enters into the body for oral and other extravascular routes.ⓘ Absorption Rate Constant [k_a]

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✖The Absorption Half Life is the time for the concentration of the drug to double its original value for oral and other extravascular routes.ⓘ Absorption Half-Life of Drug [t_a/2]

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Formula

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Absorption Half-Life of Drug

Formula

`"t"_{"a/2"} = ln(2)/"k"_{"a"}`

Example

`"3600.765s"=ln(2)/"0.693h⁻¹"`

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Absorption Half-Life of Drug Solution

STEP 0: Pre-Calculation Summary

Formula Used

Absorption Half Life = ln(2)/Absorption Rate Constant
t_a/2 = ln(2)/k_a
This formula uses 1 Functions, 2 Variables

Functions Used

ln - The natural logarithm, also known as the logarithm to the base e, is the inverse function of the natural exponential function., ln(Number)

Variables Used

Absorption Half Life - (Measured in Second) - The Absorption Half Life is the time for the concentration of the drug to double its original value for oral and other extravascular routes.
Absorption Rate Constant - (Measured in 1 Per Second) - Absorption Rate Constant is the rate at which a drug enters into the body for oral and other extravascular routes.

STEP 1: Convert Input(s) to Base Unit

Absorption Rate Constant: 0.693 1 Per Hour --> 0.0001925 1 Per Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

t_a/2 = ln(2)/k_a --> ln(2)/0.0001925

Evaluating ... ...

t_a/2 = 3600.76457433738

STEP 3: Convert Result to Output's Unit

3600.76457433738 Second --> No Conversion Required

FINAL ANSWER

3600.76457433738 ≈ 3600.765 Second <-- Absorption Half Life

(Calculation completed in 00.004 seconds)

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Created by Prashant Singh

K J Somaiya College of science (K J Somaiya), Mumbai

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University of Hawaiʻi at Mānoa (UH Manoa), Hawaii, USA

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Absorption Half-Life of Drug

Go Absorption Half Life = ln(2)/Absorption Rate Constant

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Go Absorption Rate Constant = ln(2)/Absorption Half Life

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Absorption Half-Life of Drug Formula

Absorption Half Life = ln(2)/Absorption Rate Constant
t_a/2 = ln(2)/k_a

What is Pharmacokinetics?

Pharmacokinetics is a branch of pharmacology dedicated to determine the fate of substances administered to a living organism. The substances of interest include any chemical xenobiotic such as: pharmaceutical drugs, pesticides, food additives, cosmetics, etc. It attempts to analyze chemical metabolism and to discover the fate of a chemical from the moment that it is administered up to the point at which it is completely eliminated from the body. Pharmacokinetics is the study of how an organism affects a drug, whereas pharmacodynamics (PD) is the study of how the drug affects the organism. Both together influence dosing, benefit, and adverse effects, as seen in PK/PD models.

How to Calculate Absorption Half-Life of Drug?

Absorption Half-Life of Drug calculator uses Absorption Half Life = ln(2)/Absorption Rate Constant to calculate the Absorption Half Life, The Absorption half-life of drug is defined as the time required for 50% of a given dose of drug to be absorbed into the systemic circulation. Absorption Half Life is denoted by t_a/2 symbol.

How to calculate Absorption Half-Life of Drug using this online calculator? To use this online calculator for Absorption Half-Life of Drug, enter Absorption Rate Constant (k_a) and hit the calculate button. Here is how the Absorption Half-Life of Drug calculation can be explained with given input values -> 3600.765 = ln(2)/0.0001925.

FAQ

What is Absorption Half-Life of Drug?

The Absorption half-life of drug is defined as the time required for 50% of a given dose of drug to be absorbed into the systemic circulation and is represented as t_a/2 = ln(2)/k_a or Absorption Half Life = ln(2)/Absorption Rate Constant. Absorption Rate Constant is the rate at which a drug enters into the body for oral and other extravascular routes.

How to calculate Absorption Half-Life of Drug?

The Absorption half-life of drug is defined as the time required for 50% of a given dose of drug to be absorbed into the systemic circulation is calculated using Absorption Half Life = ln(2)/Absorption Rate Constant. To calculate Absorption Half-Life of Drug, you need Absorption Rate Constant (k_a). With our tool, you need to enter the respective value for Absorption Rate Constant and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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