Otezla (apremilast) has a relatively short half-life of 5 to 7 hours, meaning your body eliminates half the drug from your bloodstream in that time. After you stop taking it, Otezla is essentially cleared from your system within about 30 to 42 hours, or roughly one and a half to two days.
How the Body Clears Otezla
Drugs are typically considered fully eliminated after five to six half-lives. With Otezla’s average half-life of 5 to 7 hours, that math works out to 25 to 42 hours for the drug to drop to negligible levels in your blood. This is fast compared to many medications used for psoriasis and psoriatic arthritis, some of which linger for weeks or months.
Your body breaks Otezla down primarily through the liver, then excretes it through two routes. About 58% leaves through urine, and roughly 39% exits through feces. Together, these pathways account for nearly all of the drug.
Factors That Speed Up or Slow Down Clearance
Not everyone clears Otezla at the same rate. If you have severe kidney impairment (an estimated filtration rate below 30 mL/min), the half-life extends by about 27%, and your body’s ability to clear the drug drops by nearly 47%. In practical terms, that could push full elimination closer to two and a half days instead of under two.
Certain medications also change how quickly Otezla leaves your system. Strong liver enzyme inducers, like the antibiotic rifampin, can dramatically accelerate clearance. In one study, rifampin reduced the total amount of apremilast in the bloodstream by 72%. That’s significant enough to make Otezla less effective, which is why the two aren’t typically prescribed together. If you take any medication that revs up liver enzyme activity (some seizure medications and certain herbal supplements like St. John’s wort fall into this category), Otezla may clear faster than the standard timeline.
Steady State and What Happens When You Stop
When you take Otezla consistently, the drug reaches a stable, predictable level in your blood (called steady state) within about 7 days of regular dosing. At steady state, the amount entering your system with each dose roughly equals the amount being cleared. Once you stop taking the medication, that balance tips. Your blood levels begin dropping immediately, and after roughly 30 to 42 hours, the drug is functionally gone.
This quick clearance has a practical flip side: Otezla’s therapeutic effects don’t persist long after stopping. Unlike biologic medications that suppress parts of the immune system for weeks after the last dose, Otezla’s influence fades as the drug leaves. If you were taking it for psoriasis or psoriatic arthritis, symptoms can begin returning within days to weeks of your last dose, though the exact timeline varies from person to person.
Why This Matters Before Surgery or Switching Medications
If you’re asking how long Otezla stays in your system because you’re preparing for a procedure or transitioning to a new medication, the short clearance window is generally reassuring. Most of the drug will be gone within two days of your last dose. For people with normal kidney function, there’s no prolonged washout period to worry about.
If you’re switching to a biologic or another systemic treatment, your prescriber may have you stop Otezla and start the new medication with little or no gap, precisely because clearance is so rapid. This is a notable advantage over longer-acting therapies where you’d need to wait weeks before beginning something new.