How Long Does Advil (Ibuprofen) Stay In Your System?
In our latest question and answer, the pharmacist discusses how long Advil (ibuprofen) lasts in your system.
About how long does Advil stay in your system? I am just looking to avoid drug interactions. Thanks!
Sep 11, 2022- Ibuprofen is completely eliminated from your system within 12-24 hours for most people, though it stops working much sooner at around 4 to 6 hours.
- Your age and liver function can affect how quickly ibuprofen is cleared from your body.
- Peak pain relief from ibuprofen happens within 1-2 hours depending on the form you take, which is why it's typically dosed every 4 to 6 hours.
Answer
Advil (ibuprofen) is an NSAID (non-steroidal anti-inflammatory drug) that is available over the counter (200 mg) and as a prescription (400 mg, 600 mg, and 800 mg) for the treatment of mild to moderate pain and associated conditions.
For most individuals, it will be completely eliminated from your system within 12-24 hours, although several factors, such as age and liver function, influence this time frame.
Ibuprofen Characteristics
Ibuprofen is the active ingredient in Advil and Motrin. It is also available generically simply as 'ibuprofen'.
The half-life of a given drug is usually a pretty reliable indicator of how long it lasts in our system. The 'half-life' refers to the time it takes to metabolize 50% of a drug. In most cases, a drug is completely eliminated within 5 to 6 half-lives.
The half-life of ibuprofen is around 2 to 4 hours, which means that it will be eliminated within 12-24 hours for most individuals.
Factors That Influence Advil Metabolism
As stated above, there are a few factors that influence ibuprofen's half-life:
- Age
- Liver function
Age
Ibuprofen is metabolized and eliminated faster in pediatric patients compared to adults. The prescribing information for one ibuprofen product (Caldolor) reports a half-life of around 1.5 to 1.8 hours in children and adolescents. This means that it will be completely eliminated in around 12 hours for this age group.
Liver Function
The half-life of ibuprofen is significantly prolonged in individuals with liver impairment with most studies specifically referring to cirrhosis. It has been reported that in patients with cirrhosis, the half-life can increase by over 50%.
Additional Information
It should be noted that while ibuprofen lasts in your system for 12-24 hours for most, the actual duration of action is far shorter.
After taking a dose by mouth, peak concentrations of the drug are reached (on average) in:
- 120 minutes for tablets
- 62 minutes for chewable tablets
- 47 minutes for liquids (e.g. suspensions)
The typical duration of action is 4 to 6 hours for most individuals. For this reason, ibuprofen is recommended to be dosed every 4 to 6 hours.
Final Words
Thanks so much for reaching out!
References & sources
Glossary — Terms in This Answer
- NSAID
- A non-steroidal anti-inflammatory drug that reduces pain, fever, and inflammation without being a steroid.
- Half-life
- The amount of time it takes for your body to break down and eliminate half of a drug dose.
- Metabolize
- The process by which your body breaks down a drug into substances it can eliminate.
- Peak concentrations
- The highest level of a drug in your bloodstream after taking a dose.
- Duration of action
- The length of time a drug actively works in your body to produce its effects.
- Liver impairment
- A condition where the liver does not function properly, affecting how drugs are broken down and removed from the body.
- Cirrhosis
- A serious liver disease where healthy liver tissue is damaged and scarred, significantly impairing liver function.
- Suspension
- A liquid medication form where the active drug is mixed throughout a liquid but not fully dissolved.
Dr. Brian Staiger, PharmD
Doctor of Pharmacy, board certified clinical pharmacist (BCPS), American Herbalist Guild, Medication Therapy Management certified
Brian Staiger, PharmD, BCPS, is a licensed pharmacist with more than 13 years of experience across retail pharmacy, clinical pharmacy, medication safety, pharmacy program development, and healthcare administration. He is the founder of HelloPharmacist.com, where he helps patients...
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