วารสารสมาคมจิตแพทย์แห่งประเทศไทย
Journal of the Psychiatrist
Association of Thailand
ISSN: 0125-6985
บรรณาธิการ มาโนช หล่อตระกูล
Editor: Manote
Lotrakul, M.D.
ภาพการเปลี่ยนแปลงการใช้สารเสพย์ติดในทศวรรษ
1990 ในกลุ่มประเทศอาเซียน
วิชัย
โปษยะจินดา, พ.บ.**
วิภา ด่านธำรงกุล, พบ.ม. (สถิติประยุกต์)**
อุษณีย์ พึ่งปาน, M.A.**
บทคัดย่อ การเปลี่ยนแปลงการใช้สารเสพย์ติดประเภทเฮโรอีนและยากระตุ้นประสาทที่นำเสนอในบทความนี้จะใช้สารนิเทศ
และข้อมูลจากการประชุมเจ้าหน้าที่อาวุโสด้านยาเสพติดแห่งอาเซียนและสถิติมหาภาคของกระทรวงสาธารณสุขในกลุ่มประชากรผู้เข้ารับการรักษาสารเสพย์ติดในสถานพยาบาลทั่วประเทศ
สถิติการจับกุมฝิ่นและเฮโรอีนจากสามเหลี่ยมทองคำยืนยันว่าอุปทานยังคงที่
สถิติผู้เข้ารับการรักษาเฮโรอีนรายใหม่ในประเทศไทยมีแนวโน้มลดลง สัดส่วนของนักเรียนและคนว่างงานคงเป็นเช่นเดิม
น่าสังเกตว่าจำนวนผู้เข้ารับการรักษาเฮโรอีนรายใหม่เพิ่มขึ้นเรื่อยๆ
ในเขตการพัฒนาอุตสาหกรรมและการท่องเที่ยว ซึ่งเป็นสัญญาณเตือนถึงผลกระทบในเชิงลบของการพัฒนาเศรษฐกิจและสังคมของประเทศ
การเปลี่ยนแปลงที่สำคัญอีกประการหนึ่งคือ การเพิ่มจำนวนโรงงานการผลิตสารกระตุ้นประสาทอย่างรวดเร็วในประเทศฟิลิปปินส์และไทย
อุปทานที่ผิดกฎหมายนี้ไม่เพียงแต่สนับสนุนให้เกิดการขยายจำนวนผู้เสพสารเสพย์ติด
แต่ยังทำให้เกิดการขยายอุปทานของสารนี้ในระดับโลกอย่างรวดเร็ว การใช้สารเสพย์ติดในกลุ่มสารกระตุ้นประสาทแอมเฟตามีนและยาอีเป็นที่แพร่หลายในกลุ่มประเทศอาเซียนและใน
2-3 ประเทศก็มีรายงานการใช้ยาแก้ไอในทางที่ผิด แม้ว่ายังไม่มีรายงานที่ชัดเจนถึงการใช้ยาประเภทออกฤทธิ์ต่อจิตประสาทในทางที่ผิด
แต่ดูเหมือนจะเป็นอีกภาพหนึ่งซึ่งต้องการความสนใจและการเข้าไปแทรกแซงที่ถูกต้อง
วารสารสมาคมจิตแพทย์แห่งประเทศไทย
2541; 43(2):
คำสำคัญ เฮโรอีน, แอมเฟตามีน,
อาเซียน
*
บทความในการประชุม The International Seminar on Drug Addiction Organized
by the University Libre de Bruxelles as part of the scientific cooperation
with Universities of the Mekong Region with the support of the Belgian
Federal Agency of Cooperation to the Development, 10-20 มีนาคม 2541
. กรุงเทพฯ.
** ศูนย์วิจัยยาเสพติด สถาบันวิจัยวิทยาศาสตร์การแพทย์
จุฬาลงกรณ์มหาวิทยาลัย กรุงเทพ 10 330
The
Major Changes in The 1990s Substance Abuse Scenario in Asean Countries*
Vichai
Poshyachinda, M.D.**
Vipa Danthamrongkul. M.S.**
Usaneya Perngparn, M.A.**
Abstract
Information and data
from Meetings of Asean Senior Officials on Drug Matters and the
macro statistics of the drug dependence treatment population database
of the Ministry of Public Health, Thailand in the 1990s were used
to illustrate the major changes of opiate and stimulant abuse scenarios.
Statistics of confiscated opium and heroin from the Golden Triangle
indicated that the supply most likely remained stable. While statistics
of new heroin user treatment cases in Thailand declined, the proportion
of students and the unemployed persisted. A gradual increased density
of new heroin user treatment cases in industrialized and tourism
development zones was observed. The pattern provided a warning of
the negative impact from socio-economic strategies. The critical
changes which will most likely generate the greatest deleterious
impact to the region is the rapid growth of clandestine stimulant
production observed mainly in the Philippines and Thailand. The
illicit supply not only fostered dramatic expansion of the user
population in the country of production but also contributed substantially
to the rapid increase in global supply. Consumption of illcit methamphetamine
and the Ecstacy group of stimulant increased in practically all
countries in the Asean region. Illicit diversion of cough mixture
seemed substantial with corresponding evidence of an increased abuser
population in some countries. Even though the abuse of medicinal
psychotropic drugs do not yet warrant any alarm, they seem to be
another persistent scenario which requires attention and appropriate
intervention.
J Psychiatr Assoc Thailand
1998; 43(2):
Key word : Heroin, Amphetamine,
Demand, Supply, Asean
*
Prepared for the opening session of the International Seminar on
Drug addiction Organized by the Universite Libre de Bruxelles as
part of the scientific cooperation with Universities of the Mekong
Region with the support of the Belgian Federal Agency of Cooperation
to the Development, 10th-20th March 1998,
Bangkok, Thailand.
** Drug Dependence Research
Center, Institute of Health Research, Chulalongkorn University,
Institute II Building, Chula Soi 62, Phyathai road, Bangkok 10330.
The
Southeast Asia region is quite unique in its historical experience
on substance abuse. Opium was extensively abused in the distant
past. At the end of the 19th century, opium trade was franchised
leading to evermore wide spread use and abuse (1). By the middle
of the 20th century, the Golden Triangle area became infamously
known as the major seat of opium and heroin production supplying
the escalated global demand especially from western countries. The
first heroin epidemic also occurred in many countries in the region
during the same period (2,3).
In the 1990s, substance abuse
in Southeast Asia changes dramatically in both supply and demand
aspects. This communication presents selected scenarios of the major
change in opiates, stimulants and medicinal drugs abuse. The discussions
are made mainly under considerations for future interventions. The
materials do not comprehensively cover the overall status of substance
abuse in Southeast Asia. Certain changes not included may very well
be of equal if not of greater importance for the future. A significant
proportion of the materials are extracts from the annual report
of the Meeting of ASEAN Senior Officials on Drug Matters and the
databases of the Office of Narcotics Control Board, Office of the
Prime Minister (ONCB), the Department of Medical Services, Ministry
of Public Health (DMS/MPH) and the Drug Dependence Research C4enter,
Institute of Health Research, Chulalongkorn University (DDRC/CU).
A.
THE OPIATES
In
1989, the Government of Myanmar could successfully solicit peace
accord from many groups of insurgent in the Shan State and liberated
the area that has been the seat of opiates production from their
control. The break through became even more meaningful when finally
in 1996, Khun Sa, the key controller of the illicit production and
traffic, and his followers unconditionally surrendered to the central
government (4). This major change opens for the first time the full
opportunity to control the opiates supply from the Golden Triangle
area and also raises an expectation on significant reduction of
the global illicit opiate supply. However, the official reports
from ASEAN countries on opiate seizures so far did not yet corroborate
with the expectation. Between 1990 and 1996, the annual amount of
opium seized by the Myanmar law enforcement remains at the same
level, ranging from about 1 to 2.5 tons. Moreover, the amount of
confiscated opium during the first 6 months of 1997 reached an all
time high of 5.39 tons of opium and 480.99 kg. of heroin (Table
1). 75% of the seizures reported by Myanmar were made in the Shan
State. The Myanmar government also remarked that these opiates were
mostly meant for domestic market. Between 1991 and the first half
of 1997, 45 refineries were seized in Myanmar. Twelve of which were
seized in the first half of 1997 (4). While an additional 5 were
destroyed in Thailand by local law enforcement (5)
Table
1 Opium and heroin seizures in ASEAN countries between 1987
and 1996.
______________________________________________________________________________
Substance/
Amount of drug seized (kg)
_______________________________________________________
Country 1987 1988 1989 1990
1991 1992 1993 1994 1995 1996
______________________________________________________________________________
Opium
Malaysia 217.4 237.0 736.6
658.0 85.6 270.6 349.5 69.1 155.9 2.6
Singapore 452.1 70.8 139.7
43.8 61.2 150.3 7.4 n.r n.r n.r
Thailand 1141.1 1906.2 174.6
813.7 1493.9 1297.3 2149.0 609.3 928.2 619.1
Myanmar - 1510.0 920.0 2300.0
1500.0 2260.0 2490.01760.0 1060.0 1300.0
Heroin
Malaysia 40.2 307.9 297.8 189.1
263.9 112.8 263.4 212.4 119.6 240.7
Singapore 10.4 52.4 45.9 35.5
56.8 60.5 71.7 67.8 50.2 121.3
Philippines 4.0 1.0 0.8 29.4
15.6 35.0 17.4 23.0 - n.r.
Thailand 1233.0 2081.7 744.4
1159.3 1685.9 1052.3 2416.9 1321.1 697.2 395.2
Myanmar - 119.0 219.7 220.1
186.2 388.2 358.3 304.8 72.6 504.6
______________________________________________________________________________
n.r. = No quantity reported
Source :Country reports of
the ASEAN Annual Meeting of Senior Officials on Drug Matters.
These
statistics indicated that the close circuit of demand and supply
within Myanmar is still of phenomenal amount. Such situation will
most likely exert a strong local motivation for the production in
addition to the already enormous incentive from lucrative global
demand. The supply from the Golden Triangle area is probably not
going to decrease any time soon. More significantly, the situation
pose a serious question on the mechanism that run this enormous
illicit trade if the insurgent groups are in collaboration with
the officials in developing the area in order to reduce the opiate
production. The remarkable increase seizure amount in 1997 could
be an indication of improvement if they are the direct result of
improved law enforcement control of the area due to the elimination
of insurgency. In this case, we could remain optimistic that the
reduction of opiate supply from the Golden Triangle can still be
realized although at another distant future.
The
first heroin epidemic in Thailand started in 1960 (2,3). Since then,
heroin dependence had grown into a wide spread unabated endemic
problem. Through the 1990s, indications from statistics on the total
drug dependence treatment population revealed no substantive trend
of decrease population size until the last two years. The total
heroin treatment population reported from about 200 drug dependence
treatment units distributed over the whole country showed gradual
increase from 58,327 cases in 1990 to 101,145 cases in 1995, then
dramatically drop to 81,050 and 62,215 cases in 1996 and 1997 respectively
(6). Furthermore, the percentages of new cases of heroin users which
varied between about 65-85% between 1981 and 1995 also rapidly decreased
to 40+% in 1997 (Figure 1). However, the percentages
of student and the unemployed among these new case of treatment
population stratified by age groups remained stable through the
1990s (Figure 2). This fairly encouraging trend of decrease new
case percentages is offset by the long standing statistics that
demonstrated concentration and rapid increase new cases in provincial
areas that had intensive social and economic development through
either industrialization or tourism in comparison to adjacent provinces
that carried regular development programme, Figure 3 and 4 respectively
(7).
Figure
1 Percentage of new case classified by type of principle drug
used during the last 30 days
Figure
2 Percentage of student and the unemployed among new case heroin
users classified by age group.
Figure 3 Number of
new heroin user treatment population per 100,000 in provinces with
and without industrial development
A.
Province with industrial development. B. Adjacent province without
industrial development.
Figure
4 Number of new heroin user treatment population per 100,000
in provinces with and without tourism development.
A.
Province with tourism development B. Adjacent province without tourism
development
Accelerated
industrial and tourism development often lead to population migration
from rural to urban area and the inevitable changes in family relationship
and social environment. Increase economic gain open up opportunities
for improvement of quality of life as well as opportunities for
experimentation with the hedonistic pleasure temptingly accessible
in urban area. Substance abuse could drain most benefit from development
unnoticed if attention is preoccupied over individual reasons for
abuse while the broader and significant influence from social and
economic environment are overlooked.
B.
THE STIMULANTS
In
the 1990s stimulant abuse emerged in many ASEAN countries. This
major change in pattern of substance abuse can perhaps be considered
as the first stimulant epidemic of the region. The Philippines is
probably the first ASEAN country that faced severe stimulant abuse.
The abuse of methamphetamine was noted in 1986 among the affluents,
entertainment and artist population. The status of methamphetamine
or "shabu" abuse at that time seemed well confined. However
in 1987, the abuse spreaded to the general population. The large
users population superseded the cannabis and multiple drug users
population which had dominate the substance abuse scene through
out the past (8). Clandestine production of methamphetamine was
also discovered in 1989 with evidence of relationship with foreign
national. The description of one clandestine laboratory stated that
" .. drug law enforcers
neutralized a completely set-up laboratory utilizing sophisticated
equipment and capable of large scale productions of the drug.
Confiscated during the raid were 1.5 kilograms of methamphetamine
HCl, as well as 1.5 kilograms of ephedrine HCl, a chemical precursor
used in the manufacture of SHABU. One Japanese national and
three Filipino nationals, the financier and operators respectively,
were arrested. " (9)
The report certainly implied
that the local production had some collaborative input from outside
the country. At present, the situation of methamphetamine supply
in the Philippines seems to gain additional dimension. Government
reports indicated that supply came from both local manufacturing
and importation. The illicit trade had grown into a multinational
network with transhipment to other country as evident from the following
official statement.
"Methamphetamine hydrochloride
("shabu") is illegally imported by Filipino-Chinese
syndicated from Taiwan, Hong Kong and the People Republic of
China. Recent seizures revealed that methamphetamine hydrochloride
("shabu") is also being transhipped by Filipino nationals
to the Pacific Islands/ States of Guam and Saipan and to mainland
USA" (10).
The large production of illicit
methamphetmine was also reported from Loa People Democratic Republic
(11) and Myanmar (4) in 1997 as follows.
Lao PDR's country report
"So far, there is
little known about illicit production of psychotropic substances,
especially Amphetamines in Laos. In number of cases, however,
consist of importing Psychotropic substances for the sole purpose
of immediate reexport either to circumvent tax import regulation
of the target countries or to deviate the substances for illicit
purposes. But in recent year, in 1996, drug law enforcement
officer of the NorthWestern province of Laos had detected Amphetamine
clandestine laboratory, arrest 25 offenders in which 8 Lao,
7 Thai and 10 Burmese, seized more than 20 tons of materials
and equipments used in manufacturing Amphetamine, this including
different kind of Chemical precursors which were brought into
Laos from neighboring country. Apart from this, the law enforcement
concerned agencies also seized 6,700 kg Chemical precursors
nearby the Mekong river bank not far from that laboratory (11).
Myanmar country report
" In Myanmar, psychotropic
substance abuse was limited to tranquilizers, most of which
were opium and its derivatives, the opiates. Stimulant and hallucinogen
abuse are not popular. Information concerning ephedrine, a requisite
precursor for the manufacture of stimulants, was passed on to
Myanmar law enforcement agencies at a cross border meeting with
Thai counterparts.
It was also known that
ephedrine was being trafficked from China to Thailand through
the Shan State of Myanmar. That information was obtained in
1994 and the vigilance of Myanmar LER agencies paid off in 1996
when 13 offenses produced a seizure of 5,906,555 ,methamphetamine
tablets. In 1997, there were 9 offenses, with a seizure of 1,158,864
methamphetamine tablets" (4).
Illicit stimulant tablet had
been confiscated in Thailand since the early 1960s. The rapid increase
number of amphetamine indictment in the early 1970s indicated of
rapid increase demand then. In 1979 follow immediately after a major
seizure of large quantity of illicit stimulant of nearly 300 kg.
look alike tablet containing ephedrine or combination of ephedrine
with caffeine and finally methamphetamine in combination with ephedrine
and caffeine were discovered in the illicit drug market. Since then,
the illicit stimulant tablet in Thailand remains as products from
multiple recipes of combination between few common active ingredients,
methamphetamine, ephedrine and caffeine (12). The supply of the
amphetamines in Thailand was believed to be of foreign source until
1986 when the first clandestine laboratory producing methamphetamine
was found in the suburb of Bangkok (7). Report from the Philippines
and Thailand on law enforcement seizures through the 1990s demonstrated
the persistent large supply of methamphetamine (Table 2). The massive
manufacturing of methamphetamine in Thailand is reflected in the
number of methamphetamine refineries destroyed in the 1996 and the
first half of 1997, 13 and 14 laboratories respectively (5).
Table
2 Methylamphetamine seized in the Philippines and Thailand between
1987-1996.
______________________________________________________________________________
Substance/
Amount of methylamethylamphetamine seized (kg.)
____________________________________________________________
country 1987 1988 1989 1990
1991 1992 1993 1994 1995 1996
______________________________________________________________________________
Philippines
n.r. 9.5 73.2 51.6 150.3 129.5 160.7 114.6 230.4 989.1
Thailand 511.4 42.7 54.5 75.9
508.0 64.9 626.0 444.0 538.2 757.2
______________________________________________________________________________
n.r.
= No quantity reported
Source :Country reports of
the ASEAN Annual Meeting of Senior Officials on Drug Matters.
The
information and statistics reported from ASEAN countries in 1990s
leave no doubt that illicit methamphetamine manufacturing has became
fairly wide spread. The Golden Triangle area production instead
of decreasing is actually expanding from the opiates to include
large supply of methamphetamine in a very short time. The involvement
of multinational network extending over the whole far east in the
illicit trade is equally evident. Such a rapid development strongly
indicates that a significant proportion of the supply of illicit
methamphetamine is most likely fostered by the age old infrastructure
of the opiate supply network. Addition of new groups of operators
is also inevitable.
Although
there was no direct evidence on the size of stimulant abuse population
the implication from the confiscated quantities again leave little
doubt that the number is most likely quite large especially in the
Philippines and Thailand. There are however, many indirect indicators
of the recent change of situation among many countries in ASEAN
region. The official reports of Brunei Darussalam (13), Indonesia
(14) the Philippines (10), Singapore (15) and Thailand (5) referred
to the increasing trend of illicit stimulant abuse as demonstrated
in the following extracts.
Brunei Darussalam's country
report
"The new threat Brunei
is facing is the increasing trend towards the abuse of methamphetamine
or "shabu". The trend has significantly change the
local drug scene in Brunei. Since the middle of 1996 up to June
1997 an increase in the number of "shabu" arrest was
observed and more than 100 grams has been seized" (13).
Indonesia's country report
" There has been a
change in the pattern of drug abuse lately illicit distribution
and traffick of psychotropic substances, especially Ecstasy/MDMA
have increased" (14).
Philippines country report
" Philippine drug
abusers generally practice multiple drug abuse characterized
by simultaneous intake of stimulants and depressants or some
other drug combinations. In 1996 and 1997 (January-June), methamphetamine
hydrochloride ("shabu") was the number one drug of
choice in term of quantity seized in the illicit market, number
of seizures made and number of persons arrested. However, marijuana
is still the most available drug of abuse in the country. Opiate
abuse, if existed, is insignificant" (10).
Singapore country report
"1996 saw a drop for
two consecutive years in the total number of heroin abusers
arrested. Conversely, abuse of other drug types increase during
the same period. About 10% of the local addict population abuse
cannabis and 11.5% abuse ecstasy. The number of new addicts
has increased significantly from 978 to 1421 between 1995 to
1996 because of the emergence of first-time ecstacy abusers.
However, in absolute numbers, the overall addict population
decreased by 4.5%" (15).
Thailand country report
"The main drug of
abuse are heroin, opium, methamphetamine, marihuana and volatile
substance. In the early 1996, high heroin price caused heroin
addicts to use methamphetamine instead. The methamphetamine
abuse group is not only labour group as used to be but rapidly
spread out to in-school and out-school youth. In the meantime,
there are other reported drugs found in the country such as
cocain, ecstasy and ketamine. As for opium and marihuana they
are in limited extent. Volatile substances are the main drug
of abuse in Thailand. They are very popular among the youth
especially in young children both in rural and urban areas because
of cheap price.
Methamphetamine
abuse in Thailand increase because some heroin abusers change
their behavior by higher involving with methamphetamine trade
or abuse of these 2 kinds of drugs simultaneously. This occurrence
has several support factors, for example, the increase of the
demand, the higher profit from methamphetamine producing and
trading (5)".
In Thailand the rapid expansion
of methamphetamine user population was revealed by the increase
number of new case of stimulant users among the total treatment
population. The trend of increase started in 1991 and became very
rapid from 1994 onward (Figure 5). Student constituted 41.4 and
42.8% of the new stimulant users in 1996 and 1997 respectively.
Over 75% of student case were between 15 and 19 years old (16).
However, the increase did not accurately reflect amphetamine dependence
among student. Students suspected of amphetamine use were often
sent to the treatment units for dependency diagnosis. They were
frequently added to the dependent case by mistake. Hence, the statistics
demonstrated inclusively cases of ever use, occasional use and dependence.
The common reasons for stimulant use were for recreation and enhancing
work performance such as night work and hard labour.
Figure
5 Percentage of amphetamine use daily during the last 30 days
before admission : 1980-1996.
Eventhough the manufacturing
of illicit stimulant in the ASEAN countries evidently confined to
methamphetamine, the abuse of illicit stimulant included other stimulant
such as the ecstacy group of amphetamine derivatives and cocaine
as well. It is clear that the abuse of stimulant was fostered simultaneously
by intra and extra regional supply. There seems to be differences
in the proportion of demographics and pattern and reasons of use
between the "old" opiate and "new" stimulant
user population. In fact, the situation indicates the grave danger
from expansion of substance abuse into a broader demographics and
diverse illicit substances availability. Population at risk on using
these two groups of substances are not completely overlapped. The
extent to which they do not overlap is actually the extent of the
future threat for the expansion of future substance abuse population.
C. THE MEDICINAL DRUGS
The abuse of tranquilizers
in the benzodiazepines group by the opiate dependents is well known
and very common. In the 1990s law enforcement seizures of the tranquilizers
appeared from all ASEAN countries. However, persistent yearly seizure
were reported from Brunei Darussalam, Malaysia and Thailand. Malaysia
reported large quantities of psychotropic pill, 709,865 tablets,
in 1996. Cough mixture had been commonly abused in combination with
cannabis in the Philippines for many years. Yearly or almost seizures
of illicit diversion were reported from Brunei Darussalam, Myanmar,
Philippines and Singapore. The largest quantitites of illicit traffic
on cough mixture were actually reported from Myanmar. Between 1988
and 1996 the annual confiscated amount varied between 1,789.9 to
10,253.1 litres (Figure 6)(4). Corroborative illicit export of cough
mixture from the southern region of Thailand to Myanmar was reported
by the Food and Drug Agency of the Ministry of Public Health.
Figure
6 Phensedyl seizures in Myanmar between 1988 and 1997. (Jan.
- Jun.)
The
abuse of medicinal drug and illicit diversion had apparently been
observed in ASEAN countries for quite a time. There as yet is no
clear evidence of real awareness that the situation constitute a
part of the national substance abuse problem. The situation can
hardly be overlook since they pose a different threat from the cycle
of supply and demand that involved different target groups from
those related with the narcotics. Abuse and illicit diversion of
essential drugs required quite different interventions from the
illicit substance and certainly not more simple to resolve. They
may in fact be even more difficult to define and intervene.
D.
THE POINTS OF CONCERN
The selected facets of changes
in the substance abuse situation so far presented are probably adequate
to express deep concern over the rapidity which these major changes
had evolved. The tip of the ice berg is frequently compared with
the knowledge on the current situation. Is this the question of
learning too late? In consideration is the insensitive monitoring
of the situation in nature, extent and timeliness. The complex nature
and extent of substance abuse need good monitoring system which
required technical expertise as well as effective and sustainable
operation. The challenge on monitoring is the that no one really
know the depth or the size and shape of the iceberg underneath the
surface. Yet how can the problem be solve if the situation remains
obscure
The
fragmentary knowledge on substance abuse situation and the rapid
change pose unique problem on intervention. The need for flexible
policy, strong commitment of government and intervention implementor,
effective coordination and collaboration and appropriate intervention
measures had often been identified as key elements for successful
control. However, real evidence on actual effective operation of
these elements are rarely available on hand anywhere. In consideration
is the availability of ready made and reliable solution much sought
after by all party concern. If there is no solution in this respect
what can we learn from past experience and proven knowledge. Keeping
in mind that past achievement and success are clearly inadequate
to keep substance abuse under control not having to consider irradication.
CONCLUSION
The
growing problem, the inadequate interventions and the sense of inevitable
defeat because of the complexity of the roots of the problems and
the phenomenal efforts required to intervene are probably repetitive
rhetorics heard in substance abuse discussion. They deserve reiteration
under more critical appraisal and strong action programme that is
effective and sustainable.
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2. Poshyachinda V. Heroin in
Thailand. Institute of Health Research Technical Report No DD 1/82,
1982, ISBN 974-560-762-2.
3. Poshyachinda V. Drugs and
aids in Southeast-Asia Forensic Science International 1993; 62:
15-28.
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