The Drug Half-Life Calculator provides an estimated length of time for the drug effects to resolve or wear off—in other words, how long it might take to eliminate a particular drug from the body.
To use the tool, simply input the corresponding information.
The decrease in plasma concentration follows 7 stages
The following table introduces the half time of most common active substances:
Infrequent users: 1.3 days
Regular users: 13 days