Suboxone has become something of a “wonder drug,” in the words of Slate magazine, for its effectiveness in treating patients who are addicted to heroin or other opioids.
The combination of buprenorphine and naloxone to simultaneously quell withdrawal symptoms, provide a ceiling to opioid effects to protect against addictive euphoria, and deter abuse attempts with Suboxone itself, seems like the perfect system of keeping the compulsion and craving to use stronger opioids at bay.
But Suboxone is a powerful drug in its own right, and the effect it has on a person who still has a physical or psychological dependence on heroin or some other dangerous narcotic can be a source of concern in itself. Patients and caregivers should be aware of the condition known as precipitated withdrawal, and doctors have to carefully judge when it is safe to start Suboxone treatment.
Heroin derives its effectiveness from the way it binds to and activates the opioid receptors in the brain. The receptors are specialized protein molecules, located on the surfaces of cells. Opioid drugs and medications latch on to the receptors and change how the cells function. Opioids that are consumed either for abuse or treatment bind to the mu receptor. It is through this receptor that opioids have an analgesic (painkilling) effect, a euphoric effect, and ultimately an addictive effect.
Heroin is a full opioid agonist, which means that it binds to and fully activates mu receptors. Other examples of full opioid agonists include methadone, codeine, and morphine.
The buprenorphine in Suboxone, on the other hand, is a partial opioid agonist. As an opioid, it still produces analgesia and euphoria, but as a partial agonist, these effects are felt to a lower extent than with full opioid agonists. Furthermore, the opioid effects of buprenorphine eventually reach a ceiling even if the dose is increased. This lowers the risk of buprenorphine being abused, making it a vital substitute for heroin (or other full opioid agonists) to help addicted individuals as they begin their detoxification.
This is where the danger of precipitated withdrawal arises. With buprenorphine’s strong receptor-binding affinity, when given to a person who is already addicted to heroin, the buprenorphine removes and then replaces the heroin molecules that have already attached to the person’s opioid receptors in the brain. As a result of this, the buprenorphine produces a significantly reduced opioid reaction (as it should). But the effect of millions of receptors being deprived of their full opioid agonist and instead being replaced by a partial opioid agonist (that, by design, has a weakened effect) can trigger withdrawal symptoms in the person.
This phenomenon is what is known as precipitated withdrawal.
Precipitated withdrawal occurs quickly and can be quite intense. To control for this, patients should already be in mild to moderate withdrawal before they are given their first dose of buprenorphine. They should also not be given buprenorphine if they are high on opioids.
In order to choose the safest moment to start buprenorphine, a doctor should wait until the patient scores a minimum of 5 or 6 on the Clinical Opiate Withdrawal Scale, or COWS. The Journal of Psychoactive Drugs explains that the scale rates the 11 most typical symptoms associated with opiate withdrawal. It is used to assess the severity of the patient’s withdrawal, and to infer how addicted the patient is to opioids.
The 11 symptoms measured by the COWS are:
To minimize the risk and damage of precipitated withdrawal, buprenorphine should be started when the withdrawal symptoms are still relatively mild.
The delicate balance of knowing when and how to properly administer buprenorphine is one reason why detoxification and withdrawal should never be attempted at home, or by people who do not have the medical training to help a patient through the process. In fact, the fear of precipitated withdrawal is why some people may choose not to seek out treatment for their opioid addiction; such apprehension is considered to be one of the fundamental dynamics of addiction.
However, the only way for a person to be in a position to overcome a psychological compulsion to abuse opioids is to break the physical compulsion, and that comes through detoxification. The best and safest place to go through the process is in a professional treatment center, where a doctor can assess the person’s full medical history, and guide the person through detoxification and withdrawal. After detox, the individual should continue with therapy and counseling for long-term opiate addiction rehabilitation.
The length of time one stays on Suboxone depends on a number of different factors: how long the person has been addicted to narcotics; the types of narcotics; whether there is a family history of substance abuse; how well the patient responds to Suboxone; and how well the treatment is progressing (in terms of the patient being able to participate in the daily activities at a rehab center).
Writing in The Fix, the director of the Addiction Medicine Clinic at the University of California, Los Angeles says there is no easy way to predict the best length of time for a person to receive Suboxone treatment. It is possible that some opiate addicts may require Suboxone therapy for years.
Furthermore, Suboxone itself can be very addictive; The New York Times referred to it as “addiction treatment with a dark side.” It is a difficult drug to stop using, says The Fix, so much so that people may need to keep using it for years, in order to stave off its own withdrawal symptoms. That Fix article sums it up by asking why there is no official medical protocol to eventually have patients stop using Suboxone, pointing some fingers at a pharmaceutical industry that rakes in billions of dollars every year (Suboxone itself, a “blockbuster drug” in the words of The New York Times, made over $1.5 billion in sales in 2012).Notwithstanding the pervasive influence of Big Pharma, Suboxone can be an effective and useful drug in helping people overcome their abuse of heroin and other harmful opioids. But such is the complexity of addiction that Suboxone should be administered at the proper time, so as not to trigger its own withdrawal and unwittingly make a difficult process even harder.
As with any treatment protocol, use of Suboxone should be determined on a case-by-case basis by medical professionals. While it can help some individuals with their recovery, it might not be right for others.
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