Reviewed by Clare Waismann, M-RAS, SUDCC II, Founder of the Waismann Method — April 23, 2026
Medical content last reviewed by Michael H. Lowenstein, M.D., Quadruple Board-Certified Physician and former Medical Director — February 23, 2023
Important Update: The Norco Brand Is No Longer Available
The Norco brand name has been discontinued in the United States. The generic equivalent — hydrocodone/acetaminophen, sometimes written as hydrocodone/APAP — remains widely prescribed. If you or a family member was prescribed “Norco” in recent years, you most likely received the generic version.
The discontinuation followed the FDA’s 2011 decision to limit acetaminophen in prescription combination products to 325 mg per dosage unit, along with the 2014 reclassification of hydrocodone combination products from Schedule III to the more restrictive Schedule II. Other brand-name versions of the same medication — including Vicodin, Lortab, Lorcet, and Hycet — have also been discontinued. Only generic hydrocodone/acetaminophen remains on the market.
What Was Norco?
Norco combined two active ingredients:
- Hydrocodone bitartrate — a semi-synthetic opioid that binds to opioid receptors in the central nervous system to reduce pain perception
- Acetaminophen — a non-opioid pain reliever that enhances analgesic effect but carries liver toxicity risk at high doses
Common dosages were 5 mg, 7.5 mg, and 10 mg of hydrocodone, each combined with 325 mg of acetaminophen. It was prescribed for moderate to moderately severe pain when non-opioid options were insufficient. Its generic equivalent is prescribed in the same strengths today.
Because the Active Ingredients Are Unchanged
The generic hydrocodone/acetaminophen available today has the same active ingredients, the same clinical effects, the same risks of dependence and liver toxicity, and the same withdrawal profile that Norco did. Everything that was clinically true of Norco remains true of the generic.
For comprehensive information on the underlying medication — including pharmacology, dependence and tolerance, withdrawal timeline, treatment approaches, and the full clinical reference — see our main page:
→ Hydrocodone and Acetaminophen: Complete Clinical Reference
For information on other brand names of the same combination, see Vicodin.
If You Need Help Today
The Waismann Method no longer accepts patients. For current treatment:
- SAMHSA’s National Helpline — 1-800-662-HELP (4357) — free, confidential, 24/7
- FindTreatment.gov — official U.S. government treatment locator
- Emergency or overdose: Call 911 immediately. Administer naloxone (Narcan) if available.
Addiction Treatment Options
Hydrocodone, the opioid in Norco, typically remains detectable in the urine for up to 3 days after the last dose. However, withdrawal symptoms often begin within 6–12 hours.
Some rapid detox programs offer accelerated detox under sedation in less than a day, but these should only be done in a hospital setting with full medical support. Not all patients are candidates, and a medical evaluation is essential. We are proud to have Michael H. Lowenstein, M.D. as our medical director for over two decades. Dr. Lowenstein is a quadruple board-certified anesthesiologist and is currently the most experienced doctor in sedation-assisted detox.
Dependence refers to the body’s adaptation to the drug, resulting in withdrawal symptoms if stopped. Addiction includes psychological factors like compulsive drug-seeking behavior and continued use despite negative consequences.
Depending on your medical evaluation, you may receive medications such as:
Sedatives for anxiety and insomnia
Antiemetics for nausea
Non-opioid pain relievers
Opioid antagonists for long-term relapse prevention (e.g., naltrexone)
In recent years, there has been an increasing focus on personalized medicine in healthcare. This approach to medical treatment takes into account a patient’s unique characteristics, such as their genetic profile, history, and current health status. Doctors can tailor treatments to each patient by considering these factors, providing the most effective care possible. In many cases, personalized medicine can mean life and death. As our understanding of genetics and disease continues to improve, the potential for personalized medicine to transform healthcare is limitless.
