Powerful painkiller on its way to the market: Experts worry about addiction woes

Drug makers are on their way to a pure, more powerful version of the nation’s second most-abused medicine, which has addiction experts worried that it could spur a new wave of abuse. The new pills contain the highly addictive painkiller hydrocodone, packing up to 10 times the amount of the drug as existing medications such as Vicodin.

At present, four companies have begun patient testing. Zogenix of San Diego plans to apply early next year to begin marketing its product, Zohydro. If approved, it would mark the first time patients could legally buy pure hydrocodone. Existing products combine the drug with non-addictive painkillers such as acetaminophen.

Experts are worried about Zohydro, a timed-release drug meant for managing moderate to severe pain, because abusers could crush it to release an intense, immediate high. “I have a big concern that this could be the next OxyContin,” said April Rovero, president of the National Coalition Against Prescription Drug Abuse. “We just don’t need this on the market.”

OxyContin, introduced in 1995 by Purdue Pharma of Stamford, Conn., was designed to manage pain with a formula that dribbled one dose of oxycodone over many hours. Abusers quickly discovered they could defeat the timed-release feature by crushing the pills. Purdue Pharma changed the formula to make OxyContin more tamper-resistant, but addicts have moved onto generic oxycodone and other drugs that do not have a timed-release feature. Oxycodone is now the most-abused medicine in the United States, with hydrocodone second, according to the Drug Enforcement Administration’s annual count of drug seizures sent to police drug labs for analysis.

Hydrocodone belongs to family of drugs known as opiates or opioids because they are chemically similar to opium. They include morphine, heroin, oxycodone, codeine, methadone and hydromorphone. Opiates block pain but also unleash intense feelings of well-being and can create physical dependence. The withdrawal symptoms are also intense, with users complaining of cramps, diarrhea, muddled thinking, nausea and vomiting. After a while, opiates stop working, forcing users to take stronger doses or to try slightly different chemicals.

“It’s like the wild west,” said Peter Jackson, co-founder of Advocates for the Reform of Prescription Opioids. “The whole supply-side system is set up to perpetuate this massive unloading of opioid narcotics on the American public.”

The pharmaceutical firms however say the new hydrocodone drugs give doctors another tool to try on patients in legitimate pain, part of a constant search for better painkillers to treat the aging U.S. population. “Sometimes you circulate a patient between various opioids, and some may have a better effect than others,” said Karsten Lindhardt, chief executive of Denmark-based Egalet, which is testing its own pure hydrocodone product.

The companies say a pure hydrocodone pill would avoid liver problems linked to high doses of acetaminophen, an ingredient in products like Vicodin. They also say patients will be more closely supervised because, by law, they will have to return to their doctors each time they need more pills. Prescriptions for the weaker, hydrocodone-acetaminophen products now on the market can be refilled up to five times.

Zogenix has completed three rounds of patient testing, and last week it announced it had held a final meeting with Food and Drug Administration officials to talk about its upcoming drug application. It plans to file the application in early 2012 and have Zohydro on the market by early 2013.

Purdue Pharma and Cephalon, a Frazer, Pa.-based unit of Israel-based Teva Pharmaceuticals, are conducting late-stage trials of their own hydrocodone drugs, according to documents filed with federal regulators. In May, Purdue Pharma received a patent applying extended-release technology to hydrocodone. Meanwhile, Egalet has finished the most preliminary stages of testing aimed at determining the basic safety of a drug. The firm could have a product on the market as early as 2015 but wants to see how the other companies fare with the FDA before deciding whether to move forward, Lindhardt said.

Prescription painkillers led to the deaths of almost 15,000 people in 2008, more than triple the 4,000 deaths in 1999, the Centers for Disease Control and Prevention reported last month. Emergency room visits related to hydrocodone abuse have shot from 19,221 in 2000 to 86,258 in 2009, according to data compiled by the Drug Enforcement Administration. In Florida alone, hydrocodone caused 910 deaths and contributed to 1,803 others between 2003 and 2007. The United States consumes 99 percent of the world's hydrocodone and 83 percent of its oxycodone, according to a 2008 study by the International Narcotics Control Board.

“You’ve got a person on your product for life, and a doctor’s got a patient who’s never going to miss an appointment, because if they did and they didn’t get their prescription, they would feel very sick,” said Andrew Kolodny, president of Physicians for Responsible Opioid Prescribing. “It’s a terrific business model, and that’s what these companies want to get in on.”

At a conference for investors New York on Nov. 29, Zogenix chief executive Roger Hawley said the FDA was not pressuring Zogenix to put an abuse deterrent in Zohydro. “We would certainly consider later launching an abuse-deterrent form, but right now we believe the priority of safer hydrocodone — that is, without acetaminophen — is a key priority for the FDA,” Hawley said.

Dr. Ananya Mandal

Written by

Dr. Ananya Mandal

Dr. Ananya Mandal is a doctor by profession, lecturer by vocation and a medical writer by passion. She specialized in Clinical Pharmacology after her bachelor's (MBBS). For her, health communication is not just writing complicated reviews for professionals but making medical knowledge understandable and available to the general public as well.

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Comments

  1. Diana Diana United States says:

    This is insanity run amok.  There is no need for this type of drug.  Although I do not agree with mixing meds with Acetaminophen if possible, there are other pain meds on the market such as Fentanyl which can do the job and not become a potential for such blantant misuse.  Due to a severe sonal injury I have been on Fentanyl for about 3 months due to the fact that I am allergice to almost all opiod pain medications, and this has done a great job without the risk of giving someone a chance to steal it and morph it into a "Super High".  There is also Butrans which is very similar, in a patch form and cannot be morphed.  People do not need such stron pain killers and I am weaning myself off of the one I am on.  A good healthy diet, moderate exercise and quiet meditation can achieve the same benefit as a powerful pain pill.  This medication should be limited to hospital use only.  The world has become too dependent on a cheap and quick fix.  Pain can be controlled in many ways that do not include narcotics.  I am so glad I am getting off the meds and realizing that there is so much life to live and it is better lived with a clear mind.  

  2. Starr Starr United States says:

    This country is going insane with all these pain medications. I agree, we need to be able to offer hydrocodone -a common pain drug already-without acetominophen(tylenol). People often abuse these drugs and the tylenol is potentially lethal, and causes organ damage if taken in excess. Also, people with allergies to tylenol would be able to use hydrocodone, an excellent drug if you just had surgery and not as strong or dangerous as many others. But a time release/high dose pill?? Are they nuts??? Its going to kill alot of people. Kids dont get how dangerous these pills are and you don't want this one in the medecine cabinet. Sure you can "tamper proof" pills with additives that prevent injecting by clumping into glue in water, but it can be snorted or crushed and swallowed releasing the whole dose. If you need 24hr pain control, take pain pills as needed every 4-6hours. No one needs a friggin time release opiate like this when there are so many addicts , overdoses, and kids with uneducated or bad parents. I hope they dont let this new one out of the bag.

  3. John John United States says:

    It all comes from the media. The actual American Medical  studies show less than 5% of people fall into addiction. Yet 95% are treated like criminals.
    The public has the idea that people are getting away with something when they need pain meds.
    I spent 18 years in horrible pain, in which I wasnt even about to hold a job because I was always calling in sick. I was never even offered a single pain med. Im highly educated BTW.
    Oh I was offered things that gave me ulcers, nightmares, and drugs that caused me to even be able to form a complete sentence--but never the very medicine that stops pain. What a joke.

    So I suffered all those years for what? What is life even for if every minute of every day is terrible pain.

    Think of the media on these recent pharmacy robberies. They make people afraid to go into the pharmacy now--and the workers look at you like your a punk for talking pain meds.
    Yet gas station, stationary, jewelers, 7-11's, banks, and the like are robbed at a 5000 to 1 ratio. So why the media? Because people think those who take these meds are getting away with something. Its pure wickedness.

The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of News Medical.
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