Drug Rate Entering Body Calculator

↳

⤿

Drug Content

Area under curve

Bioavailability

Dose

Drug Stability

Elimination Rate Constant

Isotonic Solutions

Plasma

Steady state Concentration

Volume of Distribution

Volume of plasma cleared

✖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 [t_a/2]

+10%

-10%

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

⎘ Copy

👎

Formula

✖

Drug Rate Entering Body

Formula

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

Example

`"3616.42h⁻¹"=ln(2)/"0.69s"`

Calculator

LaTeX

Reset

👍

Download Pharmacokinetics Formula PDF

Drug Rate Entering Body Solution

STEP 0: Pre-Calculation Summary

Formula Used

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

STEP 1: Convert Input(s) to Base Unit

Absorption Half Life: 0.69 Second --> 0.69 Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

k_a = ln(2)/t_a/2 --> ln(2)/0.69

Evaluating ... ...

k_a = 1.0045611312463

STEP 3: Convert Result to Output's Unit

1.0045611312463 1 Per Second -->3616.42007248667 1 Per Hour (Check conversion here)

FINAL ANSWER

3616.42007248667 ≈ 3616.42 1 Per Hour <-- Absorption Rate Constant

(Calculation completed in 00.020 seconds)

You are here -

Home » Chemistry » Pharmacokinetics » Drug Content » Drug Rate Entering Body

Credits

Created by Prashant Singh

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

Prashant Singh has created this Calculator and 700+ more calculators!

Verified by Prerana Bakli

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

Prerana Bakli has verified this Calculator and 1600+ more calculators!

< 25 Drug Content Calculators

Saponification value

Go Saponification Value = Molecular weight of KOH*(Volume of blank-Volume of Actual solution)*Normality of solution/Weight of sample taken

Fraction of Drug Unbound in Tissue given Apparent Tissue Volume

Go Fraction Unbound in Tissue = (Fraction Unbound in Plasma*Apparent Tissue Volume)/(Volume of Distribution-Plasma Volume)

Secretion Rate of Drug

Go Secretion Rate of Drug = (Renal Clearance*Plasma Concentration)-(Filtration Rate)+(Reabsorption Rate of Drug)

Reabsorption Rate of Drug

Go Reabsorption Rate of Drug = ((Renal Clearance*Plasma Concentration)+Filtration Rate+Secretion Rate of Drug)

Filtration Rate of Drug

Go Filtration Rate = ((Renal Clearance*Plasma Concentration)+Reabsorption Rate of Drug-Secretion Rate of Drug)

Relative Bioavailability of Drug

Go Relative Bioavailability = (Area under curve Dosage A/Area under curve Dosage B)*(Dose Type B/Dose Type A)

Acid Value of KOH

Go Acid Value = Molecular weight of KOH*Volume of solution koh*Normality of solution/Weight of sample taken

Drug Purity given Rate of Administration and Dosing Interval

Go Drug Purity = (Drug Rate*Dosing Interval)/(Administered Dose*Bioavailability)

Rate of Administration of Drug given Dosing Interval

Go Drug Rate = (Administered Dose*Bioavailability*Drug Purity)/Dosing Interval

Drug Purity given Administrative Dose and Effective Dose

Go Drug Purity = Effective Dose/(Administered Dose*Bioavailability)

Drug Loading Efficiency

Go Drug Loading Efficiency = Weight of drug in nanoparticles/Weight of the Nanoparticles*100

Encapsulation Efficiency

Go Encapsulation Efficiency = Weight of drug in nanoparticles/Weight of feeding drug*100

Renal Clearance of Drug

Go Renal Clearance = Drug Amount Excreted Unchanged in Urine/Area Under Curve

Concentration of Drug given Rate of Infusion of Drug

Go Concentration of Drug = Rate of Infusion/Volume of Plasma Cleared

Rate of Infusion of Drug

Go Rate of Infusion = Volume of Plasma Cleared*Concentration of Drug

Median Lethal Dose using Therapeutic Index

Go Median Lethal Dose = (Median Effective Dose*Therapeutic Index)

Margin of Safety of Drugs

Go Margin of Safety = Toxic Dose Response/Effective Dose Response

Effective Dose using Therapeutic Index

Go Median Effective Dose = Median Lethal Dose/Therapeutic Index

Therapeutic Index

Go Therapeutic Index = Median Lethal Dose/Median Effective Dose

Absorption Half-Life of Drug

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

Drug Rate Entering Body

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

Concentration of Drug using Volume of Distribution

Go Concentration of Drug = Dose/Volume of Distribution

Apparent Volume of Drug Distribution

Go Volume of Distribution = Dose/Concentration of Drug

Tablet Dosage

Go Number of tablet = Desired dosage/Stock strength

Easter Value

Go Easter Value = Saponification Value-Acid Value

Drug Rate Entering Body Formula

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

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 Drug Rate Entering Body?

Drug Rate Entering Body calculator uses Absorption Rate Constant = ln(2)/Absorption Half Life to calculate the Absorption Rate Constant, The Drug Rate Entering Body formula is defined as the inverse relation of time with the rate constant. Absorption Rate Constant is denoted by k_a symbol.

How to calculate Drug Rate Entering Body using this online calculator? To use this online calculator for Drug Rate Entering Body, enter Absorption Half Life (t_a/2) and hit the calculate button. Here is how the Drug Rate Entering Body calculation can be explained with given input values -> 1.3E+7 = ln(2)/0.69.

FAQ

What is Drug Rate Entering Body?

The Drug Rate Entering Body formula is defined as the inverse relation of time with the rate constant and is represented as k_a = ln(2)/t_a/2 or Absorption Rate Constant = ln(2)/Absorption Half Life. The Absorption Half Life is the time for the concentration of the drug to double its original value for oral and other extravascular routes.

How to calculate Drug Rate Entering Body?

The Drug Rate Entering Body formula is defined as the inverse relation of time with the rate constant is calculated using Absorption Rate Constant = ln(2)/Absorption Half Life. To calculate Drug Rate Entering Body, you need Absorption Half Life (t_a/2). With our tool, you need to enter the respective value for Absorption Half Life and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search