The T257 Pill: What It Is, How to Identify It, and Why It Is Risky

What the T 257 pill is

A white, capsule-shaped tablet about 13 millimeters long, stamped “T 257,” is hydrocodone bitartrate 5 mg combined with acetaminophen 325 mg. It is the generic form of the combination sold under names like Norco, and pill databases list Camber Pharmaceuticals as the labeler. Hydrocodone is an opioid. Acetaminophen is the same pain reliever that is in Tylenol. Together they are prescribed for pain that is severe enough to need an opioid, usually for a few days after an injury or procedure.

The federal government moved every hydrocodone combination product into Schedule II in October 2014, the same category as oxycodone and fentanyl. That change means no refills, a new prescription every time, and closer tracking. It also tells you how the Drug Enforcement Administration sees the risk.

Is T 257 a Perc?

No. “Perc” is short for Percocet, which is oxycodone with acetaminophen. T 257 is hydrocodone with acetaminophen, the combination best known by the brand names Vicodin and Norco. Both are Schedule II opioids paired with acetaminophen, and counterfeiters press both. Milligram for milligram, oxycodone is the stronger of the two: the conversion table in the CDC’s 2022 opioid prescribing guideline counts a milligram of oxycodone as one and a half times a milligram of hydrocodone. So a pill sold as a “perc” with T 257 stamped on it is one of two things: the seller is using the wrong name, or the tablet is not what its imprint says.

Street names for hydrocodone pills

Connecticut’s Drug Control Division lists vike and Watson-387 as common street names, the second being the imprint on an older hydrocodone tablet. A street name says nothing about strength, maker, or whether the tablet ever passed through a pharmacy. The imprint answers the first two. Only the chain of custody answers the third.

How to check what you are actually holding

Imprint, color, shape, and size together identify a genuine tablet. A pill identifier such as the one on Drugs.com, or a pharmacist, will match all four. But identification only works in one direction: it can tell you what a pill is supposed to be. It cannot tell you what a pill pressed in someone’s garage contains, because counterfeiters copy the imprint exactly. The DEA lists hydrocodone among the prescription pills most often faked, and its laboratory testing found that six in ten fentanyl-laced fake pills it analyzed in 2022 carried a potentially lethal dose. DEA lab testing put that at 76 percent in fiscal year 2023 and 29 percent in fiscal year 2025. The share moves; the fact that you cannot tell by looking does not. A T 257 that came from a pharmacy with your name on the bottle is a T 257. A T 257 from anywhere else is an unknown.

What it does, and how long it lasts

Hydrocodone begins working within about half an hour, peaks in about an hour, and relieves pain for roughly four to six hours. It also produces calm and warmth, which is the part that keeps people taking it after the pain is gone. Tolerance builds within weeks of daily use, so the same dose does less, and physical dependence can follow even when a person takes it exactly as prescribed. Dependence is not the same as addiction, but it is the ground addiction grows in.

The two dangers in one tablet

The first is breathing. Opioids slow the brain’s drive to breathe, and that effect stacks with alcohol, benzodiazepines such as Xanax, sleep medications, and other opioids. Most fatal hydrocodone overdoses involve one of those combinations. The second danger is easy to miss: acetaminophen. Taking extra tablets to chase an effect means taking extra acetaminophen, and more than 4,000 mg a day, less for heavy drinkers, can cause serious liver injury. Someone taking a dozen T 257 tablets a day is taking nearly 4,000 mg of acetaminophen before counting any Tylenol or cold medicine. Our Percocet withdrawal guide covers the acetaminophen risk in another combination pill.

Stopping safely

Short-acting opioid withdrawal usually starts eight to twenty-four hours after the last dose: aches, sweating, yawning, runny nose, diarrhea, and insomnia, peaking around the second or third day. It is rarely dangerous in itself, but it is miserable enough that people use again just to stop it, and a return to use after even a few days off is when overdose risk is highest. For someone who has taken hydrocodone briefly, a slow taper written by the prescriber is often enough. For someone who has been taking more than prescribed, or buying pills, the evidence points to buprenorphine or methadone rather than toughing it out. Our opioid detox guide covers what supervised withdrawal looks like. Our Suboxone vs Subutex vs Sublocade comparison and our methadone withdrawal guide cover those two medications.

Getting help in New Jersey

If you have NJ FamilyCare or no insurance, the state’s IME Addictions Access Center at 1-844-276-2777 is the line that screens callers and refers them to Medicaid and state-funded detox, 24/7. Periscope Behavioral Health, which publishes this site, at (888) 313-3583 can help you check coverage and find a bed. What a plan covers depends on the plan and the facility’s network status. Many emergency departments and primary care offices in the state can start buprenorphine the same day. And keep naloxone in the house if anyone there takes opioids; participating New Jersey pharmacies provide it without a prescription.