2 doctors weighed in:

How long does caffiene take to leave the body?

2 doctors weighed in
Dr. Michio Abe
Internal Medicine
1 doctor agrees

In brief: 4-6 hours

The half-life (time required for the body to eliminate 1/2 of the toal amount) of caffeine in healthy adults is about 4-6 hours.
 factors such as age, liver function, medications and hormonal states (pregnancy, etc) can influence the half-life of caffeine.

In brief: 4-6 hours

The half-life (time required for the body to eliminate 1/2 of the toal amount) of caffeine in healthy adults is about 4-6 hours.
 factors such as age, liver function, medications and hormonal states (pregnancy, etc) can influence the half-life of caffeine.
Dr. Michio Abe
Dr. Michio Abe
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