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August 11, 2003
New Drug Promises Shift in Treatment for Heroin Addicts
By RICHARD P�REZ-PE�A

 
Alex is still a 34-year-old recovering addict, trying to measure what
he lost to heroin. He is still building a new life in Manhattan,
repairing frayed relationships and an interrupted career in the
entertainment industry. He is still reliant on a substitute drug to
get him through the day.

But three months ago, he switched substitutes, and his life changed
for the better. Alex � he told his story on the condition that his
full name not be used � stopped taking methadone, since the 1960's
the standard treatment for people trying to quit heroin. Instead, he
takes buprenorphine, a drug newly approved by federal regulators to
treat addiction to heroin and other opiates, including prescription
drugs.

For many addicts, though not all, buprenorphine does what methadone
does, blocking the addict's craving for a high, but experts and
addicts say it has several advantages over the older drug, and the
most important may be that a patient can get a supply, not merely a
dose, with a visit to a doctor and pharmacy.
Like methadone, buprenorphine (pronounced byoo-pre-NOR-feen) is
addictive, but the risk of overdose is much lower. Unlike methadone,
buprenorphine will not give an addict more than a mild high no matter
how large the dose, and it cannot be combined with opiates or other
narcotics to get higher still. Users suffer fewer unpleasant side
effects, and milder withdrawal symptoms when they stop taking it.

Alex said methadone, which he took for five years, allowed him to
finish college and resume working, but that buprenorphine was a big
improvement. "I'm more clear-headed than I've been in years," he
said. "I feel better physically. For the first time in a long time, I
can see myself getting off everything in a way that's not going to
rip a hole in my life and leave me only partially functioning."

The relative ease with which a supply of buprenorphine can be
obtained is a radical departure from the use of methadone, which is
tightly controlled by federal law and can be given only one daily
dose at a time, in licensed clinics where space is limited. Experts
say the advent of buprenorphine could triple the number of people in
serious treatment for heroin addiction.

"My hope and my expectation is that buprenorphine will revolutionize
heroin treatment in the United States," said Dr. Herbert D. Kleber, a
professor at Columbia University's College of Physicians and Surgeons
and a leading authority on heroin and buprenorphine, who was deputy
director of the Office of National Drug Control Policy in the first
Bush administration.

Other experts see the change as more evolutionary than revolutionary,
warning that much remains to be learned about buprenorphine, and that
methadone, too, was once seen as a wonder drug. But they are
enthusiastic, saying that since doctors began prescribing
buprenorphine in October, the experience has been overwhelmingly
positive.

"Buprenorphine is no panacea," said Dr. Lawrence Brown Jr., president
of the American Society of Addiction Medicine, and an associate
professor at Weill Medical College of Cornell University. "But it is
a fantastic opportunity for us. We need to encourage more physicians
who are outside addiction medicine to take up this treatment."

For many addicts, merely not having to go to a methadone clinic is an
enormous advantage.

"A lot of middle-class people are just not going to walk into a
methadone clinic and stand in line every day," Alex said. "You're
standing in line there with the same group of addicts every day, a
lot of them talking about how they're going to get high. It's not a
good head to be in if you're serious about quitting."

He said he lived with constant worry that the methadone would
jeopardize his job: the fuzzy-headed feeling it often induced might
overtake him in the afternoon, his reliance on the clinic's hours
might interfere with his work, a colleague might discover his
routine. "With bupe, all of that's gone."

New York City has an estimated 200,000 heroin addicts, and only
38,000 methadone program slots. Nationally, there are 800,000 to one
million heroin addicts and about 180,000 methadone clinic spaces, and
addicts outside major cities often live nowhere near clinics. Experts
say that for every heroin addict, there are two people addicted to
prescription opiates, drugs like oxycodone, hydrocodone, codeine and
morphine, and that buprenorphine can be effective for them, as well.

New York City's Department of Health and Mental Hygiene has embraced
buprenorphine, urging doctors to learn about it and begin prescribing
it. "We're looking at being able to increase the number of people in
treatment to 100,000 by 2010," said Dr. Lloyd I. Sederer, executive
deputy commissioner for mental hygiene.

Last week, the department and the federal Center for Substance Abuse
Treatment, part of the Department of Health and Human Services, held
a forum in Manhattan to educate about 150 doctors and drug counselors
about buprenorphine. Speakers included New York and New Jersey state
officials, who spoke approvingly of the new treatment.

Buprenorphine will not work for all addicts, and will not completely
replace methadone. Some people simply will not respond well to it,
which is true of almost any drug.

Dr. Kleber said that half the people on methadone take such large
doses that they could not change to buprenorphine without going
through painful withdrawal. Some will be able to wean themselves to
moderate doses and then switch, he said, and some will not. He said
heroin users should be able to switch to buprenorphine, regardless of
their doses.

Jerry, 39, an addict living in Brooklyn, said he lowered his
methadone dose by almost half, then moved to buprenorphine in June,
transitions he described as "a little rocky, but not bad." Like Alex,
Jerry, a building maintenance worker who insisted that his last name
not be used, said he found that low doses of methadone lasted a
little less than 24 hours, so he would awake every morning nauseous
from the early stages of withdrawal.

"On bupe, my head's good and my stomach's good," he said.

Buprenorphine has been used as a painkiller for many years, and a few
researchers, including Dr. Kleber, were permitted to make limited use
of it for addiction treatment. In general, though, for decades
federal law has prohibited use of any drug but methadone for heroin
addiction.

After a long lobbying campaign by treatment advocates, Congress
loosened the law in 2000, and last October, the Food and Drug
Administration ruled that doctors could prescribe buprenorphine in
their offices for addiction treatment. To prescribe it, a doctor must
first take an eight-hour course and register with the federal Drug
Enforcement Administration. Because buprenorphine is addictive and
has a potential black market, federal law prohibits a doctor from
prescribing to more than 30 patients at a time. Still, even with
those limits, in theory there are more than enough family doctors and
psychiatrists in the country to treat all those who seek treatment. 

Since October, about 2,000 doctors nationally have been cleared to
prescribe buprenorphine for drug treatment, including 218 in New York
State and 62 in New Jersey, according to Dr. H. Westley Clark,
director of the federal substance abuse center. People in the drug
treatment field say there are no more than a few thousand people
around the country taking buprenorphine.

New York State has decided that Medicaid, the health plan for the
poor, will cover buprenorphine, but most states and most private
insurance plans do not. Doctors say the retail cost is $5 to $10 a
day.

Advocates say buprenorphine should be given as part of a wider array
of support services, including counseling. Dr. Kleber said Columbia
planned to open the nation's first center to help addicts make the
transition from methadone to buprenorphine, and then refer them to
doctors for long-term maintenance.

France allowed general practitioners to prescribe buprenorphine in
1996, and has reported a sharp drop in fatal overdoses. New York City
alone has about 200 heroin overdose deaths each year.

Buprenorphine latches onto the same receptors in the brain as heroin,
methadone and other opiates, but more aggressively and effectively. A
person already on buprenorphine who took another opiate would feel no
effect, because the second drug would be unable to push the
buprenorphine out of the way and latch on. Buprenorphine stays in the
system longer, so many people can take it every other day, rather
than every day.

Buprenorphine is also unlike the others in having a "ceiling effect;"
that is, beyond a certain dosage, taking more does not make the
person any higher, or depress breathing any more. That reduces the
risk of both abuse and overdose. 

There is another advantage. "The withdrawal from bupe is much easier
and faster than that from either methadone or heroin, so it's easier
to get off it," Dr. Kleber said. "I think it's going to become the
preferred drug not only for getting people off heroin, but for
withdrawing them from drugs entirely."



Copyright 2003 The New York Times Company 

http://www.nytimes.com/2003/08/11/health/11HERO.html?pagewanted=print&position=


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