13 Jun 2011
The half life of Metoprolol is between 3 and 7 hours. This is the time it takes for the drug levels in your plasma to reduce by half.
For a drug to be totally eliminated from your system it takes around 5.5 times the half life.
As an estimate then, after taking a dose of Metoprolol it should be out of your system within 16.5 to 38.5 hours.
However other factors to consider 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.
- Metoprolol Information for Consumers
- Metoprolol Information for Healthcare Professionals (includes dosage details)
- Side Effects of Metoprolol (detailed)
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I've been taking 400 to 600mg aday for 3 months
1 answer • 21 Dec 2011
i was on vimpat 100mg 2x day having trouble getting refill so i've run out 2days ago. how long does it take to leave my system?
2 answers • 22 Jul 2013
I had Pericarditist. I am just wondering how long this takes to leave the system. They are brown 400mg
1 answer • 2 Aug 2014
And how long it last to next dosage
1 answer • 26 Sep 2015