Ofev (nintedanib) clears from your system relatively quickly. The drug has an effective half-life of about 9.5 hours in patients with idiopathic pulmonary fibrosis (IPF), meaning the amount in your blood drops by half roughly every 9.5 hours. After about 2 to 3 days without a dose, virtually all of the drug will be gone from your bloodstream.
How Quickly Ofev Leaves Your Body
A drug’s half-life tells you how long it takes for half the active substance to be eliminated. For Ofev, the terminal elimination half-life ranges from 10 to 15 hours, with an effective half-life closer to 9.5 hours during regular use. Using the standard pharmacology rule that a drug is considered cleared after about five half-lives, Ofev is essentially out of your system within 50 to 75 hours, or roughly 2 to 3 days after your last dose.
Most of the drug leaves even sooner than that. In studies tracking radioactively labeled nintedanib, the majority of the dose was recovered from the body within 24 to 48 hours. By 120 hours (5 days), over 93% of the dose had been fully excreted.
How the Body Eliminates Ofev
Your liver does the heavy lifting when it comes to breaking down Ofev, and the drug exits your body almost entirely through your stool. About 93.4% of a dose is eliminated through fecal and biliary excretion. Less than 1% leaves through urine, which means kidney function plays virtually no role in how quickly the drug clears.
Because the liver is so central to this process, anything that affects liver function can change how long Ofev lingers. People with liver impairment may clear the drug more slowly and experience higher blood levels of nintedanib at the same dose.
Steady State and What Happens When You Stop
When you take Ofev twice daily as prescribed, the drug builds up slightly in your system before leveling off. Steady-state plasma concentrations are typically reached within one week of starting treatment, with drug levels accumulating to about 1.76 times what you’d see after a single dose. This modest buildup is consistent with the drug’s short half-life: because each dose is mostly cleared before the next one, the drug doesn’t pile up dramatically over time.
Once you stop taking Ofev, that same short half-life works in your favor. Blood levels drop quickly, and within a few days you’ll have negligible amounts remaining. This rapid clearance is one reason surgeons and transplant teams view it favorably compared to drugs that linger for weeks.
Food, Timing, and Absorption
Taking Ofev with food increases how much of the drug your body absorbs by about 20% and delays the time it takes to reach peak blood levels. On an empty stomach, blood levels peak around 2 hours after a dose. With food, that shifts to about 4 hours. This delay affects when the drug reaches its highest concentration but doesn’t meaningfully change how long it takes to leave your system afterward.
It’s worth noting that Ofev has low bioavailability to begin with. Only about 4.7% of an oral dose actually makes it into your bloodstream. The rest is broken down before it ever reaches systemic circulation. Once absorbed, the drug binds heavily to proteins in the blood (97.8% bound) and distributes widely through body tissues, which contributes to the 10 to 15 hour elimination window.
Stopping Before Surgery or Procedures
Because Ofev is a tyrosine kinase inhibitor that can affect wound healing, it is typically stopped before any planned surgery. The manufacturer recommends pausing the drug beforehand and restarting only after adequate wound healing has occurred. Given the short half-life of 10 to 15 hours, the drug itself clears rapidly once discontinued, but its effects on tissue repair processes may take longer to fully resolve. If you have a procedure coming up, your care team will give you specific guidance on timing.