Pain and Opiophobia

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It is estimated that more than 50 million Americans suffer from chronic pain. When treating pain, health care providers have long wrestled with a dilemma: How to adequately relieve a patient's suffering while avoiding the potential for that patient to become addicted to pain medication?

Many health care providers underprescribe painkillers because they overestimate the potential for patients to become addicted to medications such as morphine and codeine. Although these drugs carry a heightened risk of addiction, research has shown that providers' concerns that patients will become addicted to pain medication are largely unfounded. This fear of prescribing opioid pain medications is known as "opiophobia."

Most patients who are prescribed opioids for pain, even those undergoing long-term therapy, do not become addicted to the drugs. The few patients who do develop rapid and marked tolerance for and addiction to opioids usually have a history of psychological problems or prior substance abuse. In fact, studies have shown that abuse potential of opioid medications is generally low in healthy, nondrug-abusing volunteers. One study found that only 4 out of about 12,000 patients who were given opioids for acute pain became addicted. In a study of 38 chronic pain patients, most of whom received opioids for 4 to 7 years, only 2 patients became addicted, and both had a history of drug abuse.

The issues of underprescription of opioids and the suffering of millions of patients who do not receive adequate pain relief has led to the development of guidelines for pain treatment. These guidelines may help bring an end to underprescribing, but alternative forms of pain control are still needed. NIDA-funded scientists continue to search for new ways to control pain and to develop new pain medications that are effective but do not have the potential for addiction.