How long does prednisone stay in your system?
Medically reviewed by Drugs.com. Last updated on Nov 12, 2020.
You could expect a dose or prednisone to be out of your system in 16.5 to 22 hours.
The elimination half life of prednisone is around 3 to 4 hours. This is the time it takes for your body to reduce the plasma levels by half. It usually takes around 5.5 half lives for a drug to be completely eliminated from your system.
Other factors that can cause variation to the elimination time include:
1. How much and how often you have taken the drug.
2. Your metabolic rate – a slower metabolism will increase the time a drug remains in your system.
3. Your age and health – older age and poor health will generally increase the time the drug stays in your system.
4. Body mass – generally the bigger you are the longer a drug will remain in your system.
For more information see:
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