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What is buprenorphine?
Buprenorphine (‘bup’, ‘B’) is
available by prescription, under the name of Subutex, as
a treatment for Opioid dependence. It has been found to
be effective in reducing the need to continue using
Opioids (buprenorphine maintenance) and also in helping
people to withdraw.
Buprenorphine (pronounced bew-pre-nor-feen) has been
found to be effective in treating opiod dependence by:
· Preventing withdrawal symptoms, such as cravings for
heroin
· Blocking the effects of heroin. Using heroin will not
provide the ‘high’ that would normally be expected,
therefore it takes away one of the main reasons to use
heroin.
How effective is buprenorphine?
The effectiveness of any
treatment, including for heroin or other Opioid
dependency (addiction), is more likely to be successful
if it is part of a comprehensive treatment program.
Often, a range of factors contributes to an individual’s
use of drugs. Thus, it is strongly recommended that
those wanting to remain free of heroin engage in a
treatment program that addresses the physical (the
body), psychological (the mind) and environmental issues
relating to the person’s drug use. This may involve
combining several treatment approaches, such as
buprenorphine maintenance, counseling, alternative or
holistic therapies such as massage and naturopathic
treatment; and developing a positive support network
including peers, family and friends and support groups.
As with any type of treatment or approach to addiction,
buprenorphine maintenance may be effective for some
people but will not suit everyone. A doctor or drug
counselor who spends time assessing the person’s
specific situation and explaining different options will
recommend an approach that is appropriate for that
individual.
Advantages of
buprenorphine maintenance treatment
There are many benefits of being
on buprenorphine maintenance, when compared with
continuing the use of opiates:
· Maintenance treatment holds the person stable while
they readjust their lives. The person may decide later
to work towards reducing their dose of buprenorphine
until they no longer require medical treatment.
· Using buprenorphine on its own is unlikely to result
in an overdose.
· Health problems are reduced or avoided, especially
those related to injecting, such as HIV, hepatitis B and
hepatitis C viruses, skin infections and vein problems.
· Doses are required only once a day, sometimes even
less often, because buprenorphine’s effects are long
lasting.
· Buprenorphine is much cheaper than heroin.
· Staying off heroin can provide the opportunity to
experience more ‘life opportunities’, such as. Greater
personal happiness, more close and stable relationships
with others, employment and more money to buy goods for
personal enjoyment.
What are the side effects?
Buprenorphine is generally well
tolerated; however, some side effects have been
Reported. The most common side effects are similar to
those listed under the section ‘Buprenorphine
withdrawal’.
Related issues
Before a person commences any
drug treatment program, it is important that all the
relevant information has been explained to them by a
qualified health professional and, where appropriate, to
carergivers such as family, friends etc. This includes
the length of the program, how much it costs, what other
supports are included or recommended, all the risks and
side effects, and any other health issues to consider.
When deciding on the suitability of buprenorphine
maintenance, the following issues should also be
discussed with a health professional:
· Existing liver conditions, such as acute hepatitis
· Respiratory illnesses
· If a woman is pregnant, wanting to become pregnant or
breastfeeding (it has not been established that using
buprenorphine during pregnancy is safe)
· Buprenorphine may impair the ability to drive and
operate machinery safely, so it may not be appropriate
for people in certain occupations.
How is buprenorphine taken?
A Subutex tablet must be placed
under the tongue and allowed to dissolve. Chewing or
swallowing the tablet will make it ineffective.
Injecting Subutex is dangerous, and can lead to severe
vein damage, blood clots and other health complications.
Subutex dissolves within 2–8 minutes after placing it
under the tongue. The effects begin within 30–60 minutes
of taking the dose and peak within 2–4 hours, lasting
between 4 hours to three days, depending on the dosage.
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What is the right dosage?
The dosage of buprenorphine often
varies for each person. As a guide, doses range from 4
milligrams to 32 milligrams per day for people with
heroin dependence. A health practitioner should be
informed of any side effects that are experienced, so
that the dosage can be adjusted where appropriate. When
first starting on buprenorphine maintenance, it may take
a number of days (typically from three to seven days)
for the effects of buprenorphine to become stable in the
body. Continuing heroin use can make it difficult for
the person to stabilize.
Missed doses
If a person misses their
buprenorphine doses for more than five days in a row,
they will need to undergo a review by the prescribing
health professional. If this occurs, it is recommended
that the person start again on a lower dose of
buprenorphine.
Using buprenorphine with
other drugs
Combining the use of any drugs
can increase or alter the effects that are usually
experienced from using the individual drug. It is often
difficult to predict the consequences of combining the
use of different drugs.
It is particularly important to avoid using other
depressant drugs, such as benzodiazepines (‘benzos’),
e.g. Valium, with buprenorphine. Using benzodiazepines
with buprenorphine may lead to breathing difficulties,
coma or death.
Using buprenorphine with heroin or other opiates, such
as methadone, increases the chances of experiencing
ongoing withdrawal symptoms.
Always check with your doctor or pharmacist before using
buprenorphine with alcohol, medicines or other drugs.
Phases of treatment
The induction phase is the medically
monitored startup of buprenorphine therapy.
Buprenorphine for induction therapy is administered when
an opioid-addicted individual has abstained from using
opioids for 12–24 hours and is in the early stages of
opioid withdrawal. If the patient is not in the early
stages of withdrawal, i.e., if he or she has other
opioids in the bloodstream, then the buprenorphine dose
could precipitate acute withdrawal. Induction is
typically initiated as observed therapy in the
physician’s office and may be carried out using either
Suboxone® or Subutex®, dependent upon the physician’s
judgment. As noted above, Buprenex®, the parenteral
analgesic form of buprenorphine, is not FDA-approved for
use in opioid addiction treatment.
The stabilization phase
has begun when a patient has discontinued or greatly
reduced the use of his or her drug of abuse, no longer
has cravings, and is experiencing few or no side
effects. The buprenorphine dose may need to be adjusted
during the stabilization phase. Because of the long
half-life of buprenorphine it is sometimes possible to
switch patients to alternate-day dosing once
stabilization has been achieved.
The maintenance phase
is reached when the patient is doing well on a steady
dose of buprenorphine (or buprenorphine/naloxone). The
length of time of the maintenance phase is
individualized for each patient and may be indefinite.
The alternative to going into (or continuing) a
maintenance phase, once stabilization has been achieved,
is medically supervised withdrawal. This takes the place
of what was formerly called “detoxification.”
Buprenorphine withdrawal
Withdrawal from long-term use of
buprenorphine may produce symptoms similar to those
experienced from heroin withdrawal. However, withdrawal
symptoms tend to be milder with buprenorphine than those
from methadone and other opioids.
Withdrawal symptoms vary from person to person, but may
include:
· Cold- or flu-like symptoms
· Headaches
· Sweating
· Aches and pains
· Sleeping difficulties
· Nausea
· Mood swings
· Loss of appetite.
These effects usually peak in the first two to five
days. Some mild effects may last a number of weeks.
Where can I get
buprenorphine and what does it cost?
Buprenorphine may only be
prescribed by a doctor who has a permit from the
Department of Human Services (DHS). Like methadone,
buprenorphine is subject to a dispensing fee, currently
about $5.00 per dose.
Revised
03/04 Source:
Drug Info Clearinghouse and ADF, Inc.
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