Are OxyContin and Oxycodone the Same Thing? The One Real Difference, Why It Matters, and What It Means for Withdrawal

Yes and no. OxyContin is oxycodone. It is a brand of extended-release oxycodone, made to release slowly over 12 hours. “Oxycodone” on its own usually means the immediate-release form, taken every 4 to 6 hours.

The active drug is identical: oxycodone hydrochloride, a Schedule II opioid. What differs is the tablet. OxyContin’s label says it is taken every 12 hours. The label for Roxicodone, an immediate-release oxycodone, says every 4 to 6 hours as needed for pain.

Many other products contain oxycodone too. ARUP Laboratories’ drug reference lists Percocet, Endocet and Roxicet, which combine oxycodone with acetaminophen, and Percodan, which adds aspirin. So someone on Percocet is taking oxycodone, just in a smaller dose with a second painkiller.

Source: OxyContin (oxycodone hydrochloride) extended-release tablets, prescribing information, DailyMed; Roxicodone (oxycodone hydrochloride) tablets, prescribing information, DailyMed.

Crushing, chewing or dissolving an OxyContin tablet releases the whole 12-hour dose at once. The FDA label warns this can cause rapid absorption of a potentially fatal dose of oxycodone.

That is the hidden danger of extended-release opioids. A tablet built to release 40 or 80 mg slowly becomes a single large dose when its coating is broken. The label also warns that even one tablet swallowed by accident, especially by a child, can cause a fatal overdose.

The current OxyContin tablet was redesigned to resist this. The label says the original formula is no longer sold, and the new one is harder to crush, inject or snort. But it is direct about the limit: abuse of OxyContin by injection, snorting or by mouth is still possible.

Source: OxyContin, prescribing information, boxed warning and section 9.2, DailyMed.

Often they are not. The DEA seized more than 47 million counterfeit pills laced with fentanyl in 2025. Many are pressed to look exactly like real oxycodone tablets.

The DEA says 2 mg of fentanyl can be a deadly dose, and that you cannot tell a fake pill by looking at it. Its advice is plain: the only safe medicines are ones prescribed by a doctor and dispensed by a licensed pharmacist.

That changes withdrawal too. Someone who believes they are dependent on oxycodone may actually be dependent on fentanyl, which builds up in the body and changes how medicine has to be started. The Austin fentanyl detox page explains how, and the drug testing page explains why a standard screen can miss fentanyl.

Source: One Pill Can Kill, Drug Enforcement Administration, updated October 5, 2026.

Briarwood treats oxycodone and OxyContin dependence with buprenorphine or a slow taper, comfort medicine for the symptoms, and nursing around the clock, inpatient in Austin and Houston.

The assessment asks which product, what dose, how long, and whether any pills came from outside a pharmacy. A fentanyl test is part of admission, because a pressed pill can change the plan. For people who started on a prescription for pain, the plan also has to account for the pain itself. The prescription drug detox page and the opioid detox page explain both approaches.

The step after detox is arranged before discharge, including continuing buprenorphine where it fits, because tolerance falls fast and the weeks after are when overdose risk is highest. Cost and insurance covers what a stay costs. Admissions answers at every hour.