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Fulltext Erythromycin induced torsade de pointes in a methadone maintenance patient: case report

Noor Zurani Md Haris Robson, Mohamad Hussain Habil

ASEAN Journal of Psychiatry, 2010;11(1):103-107.
MyJurnal

Objective: This case report highlights the risk of Torsade de Pointes (TdP), a life threatening cardiac arrhythmia in a heroin dependent patient receiving methadone substitution therapy who was prescribed erythromycin for upper respiratory tract infection. Method: We report a case of a 35-year-old Malay man on methadone maintenance treatment who developed TdP possibly due to drug interaction between methadone and erythromycin. Results: The
patient reported feeling unwell, chest pain and feeling dizzy after consuming 2 doses of erythromycin. ECG monitoring showed prolonged rate-corrected QT interval leading to TdP. The patient was admitted to the ward where the cardiac arrhythmia ceased following methadone discontinuation. This cardiac arrhythmia was most likely due to drug interaction between methadone and erythromycin (an enzyme inhibitor) which led to an increase in methadone concentration and potentiated the adverse effects. Conclusion: As methadone is a beneficial treatment for heroin dependent patients, the risk of cardiac arrhythmia is of great concern. To avoid complications of drug interaction, patients on methadone therapy should be advised to seek medical assessment before taking other drugs. As TdP is life threatening, it is thus important that physicians and psychiatrists involved in the treatment of
heroin dependent patients on methadone substitution therapy be made aware of this risk.

Matched MeSH terms: Opiate Substitution Treatment
Fulltext Attitudes toward opioid substitution therapy and pre-incarceration HIV transmission behaviors among HIV-infected prisoners in Malaysia: implications for secondary prevention

Bachireddy C, Bazazi AR, Kavasery R, Govindasamy S, Kamarulzaman A, Altice FL

Drug Alcohol Depend, 2011 Jul 1;116(1-3):151-7.
PMID: 21232882 DOI: 10.1016/j.drugalcdep.2010.12.001

Pre-incarceration HIV transmission behaviors and current attitudes toward opioid substitution therapy (OST) among HIV-infected male prisoners in Malaysia have important implications for secondary HIV prevention efforts.

Matched MeSH terms: Opiate Substitution Treatment/psychology*
A 12-month evaluation of health-related quality of life outcomes of methadone maintenance program in a rural Malaysian sample

Lua PL, Talib NS

Subst Use Misuse, 2012 Aug;47(10):1100-5.
PMID: 22545914 DOI: 10.3109/10826084.2012.679840

This paper focuses on the evaluation of addiction program effectiveness which involves changes in health-related quality of life (HRQoL) profile. This study was conducted from 2007 until 2010 at a rural methadone maintenance treatment center in Malaysia to assess HRQoL outcomes before and after treatment. Fifty-seven respondents completed the WHOQOL-BREF at baseline, 6 months, and 12 months postintervention. Data were analyzed using nonparametric techniques (SPSS 15). Significant and positive HRQoL impacts were demonstrated. Future studies with larger sample are encouraged. This study was supported by the Ministry of Health Malaysia.

Matched MeSH terms: Opiate Substitution Treatment/methods*
Fulltext Associated risk factors to non-compliance to methadone maintenance therapy

Ramli M, Zafri AB, Junid MR, Hatta S

Med J Malaysia, 2012 Dec;67(6):560-4.
PMID: 23770945 MyJurnal

The escalating problem of opiate dependence in Malaysia and the limitations of regimental approach of forced admission to rehabilitation centres had triggered the government to expand the methadone maintenance therapy to become a national programme. This study aimed to evaluate the short-term outcomes of the Methadone Maintenance Therapy programme in one of the busiest hospital in east coast Malaysia. We also explored the prevalence on non-compliance and factors associated to it. A total of 172 patient case notes at Methadone Clinic Hospital Tengku Ampuan Afzan (HTAA) were retrieved for relevant data. A short survey was also conducted to determine the subjects' current employment and marital status. The programme's retention rate was 62% and factors associated with poor compliance were unemployment, low quality of life scores and low dose of methadone. A special attention on the patients with these three risk factors may improve their compliance to MMT. The short-term evaluation of MMT at HTAA revealed favourable findings.
Study site: Psychiatric clinic, Hospital Tengku Ampuan Afzan, Kuantan, Pahang, Malaysia

Matched MeSH terms: Opiate Substitution Treatment
Fulltext Improvement of quality of life following 6 months of methadone maintenance therapy in Malaysia

Baharom N, Hassan MR, Ali N, Shah SA

Subst Abuse Treat Prev Policy, 2012;7:32.
PMID: 22853701 DOI: 10.1186/1747-597X-7-32

BACKGROUND: Methadone Maintenance Therapy (MMT) is one of the popular choices for drug substitution therapy and is fairly new in Malaysia. Aside from its role in harm reduction against HIV infection, MMT programme may potentially enhances clients' quality of life. This study aims to identify the impact of MMT programme on clients' quality of life after 6 months in treatment and to explore factors that may be associated with changes in their quality of life.
METHODS: In this retrospective report review, 122 subjects from 2 government MMT clinics were selected from the district of Tampin, Negeri Sembilan, Malaysia. The raw score from the WHO Quality of Life questionnaire (WHOQOL-BREF), at baseline and 6 months after therapy were collected and converted to 0-100 scale form to give quality of life scores for four domains; physical, psychological, social relationships and environment. Other variables of interest were socio-demography, age when joining MMT programme, age and duration of illicit drug use, HIV and Hepatitis C status, and the Opiate Treatment Index (OTI) score on drug use, sexual and social aspect at the baseline. Statistical analysis used the SPSS version 16.
RESULTS: There was significant improvement in all four domains of quality of life, after 6 months of MMT. The largest improvement was for psychological domain (mean score difference 15.54 ± 20.81). Multivariable linear regression analysis showed that, for the physical domain, there was no significant predictor. For both the psychological and social domains, having tertiary education is a significant predictor for improvement in both aspects of quality of life. Negative HIV status is associated with improvement for the environment domain.
CONCLUSIONS: There was a significant short term improvement in the quality of life of MMT clients who stayed in the programme for at least 6 months in the district of Tampin, Negeri Sembilan, Malaysia.
Study site: MMT clinic, Tampin, Negeri Sembilan, Malaysia.

Matched MeSH terms: Opiate Substitution Treatment*
Fulltext Haplotypes frequencies of CYP2B6 in Malaysia

Musa N, Zulkafli MI, Talib N, Mohamad N, Fauzi H, Ismail R

J Postgrad Med, 2012 Oct-Dec;58(4):235-41.
PMID: 23298916 DOI: 10.4103/0022-3859.105439

Drugs with complex pharmacology are used in the management of drug use disorder (DUD) and HIV/AIDS in Malaysia and in parts of South-East Asia. Their multiethnic populations suggest complexity due to the genetic polymorphism, such as CYP2B6 that metabolizes methadone and anti-retroviral.

Matched MeSH terms: Opiate Substitution Treatment
Fulltext Clinical correlates of erectile dysfunction among male patients on methadone maintenance therapy (MMT) in Kuala Lumpur

Nik Ruzyanei, N.J., Noormazita, M., Azlin, B., Normala, I., Hazli, Z., Abdul Aziz, S., et al.

Malaysian Journal of Medicine and Health Sciences, 2012;8(1):27-35.
MyJurnal

Sexual dysfunction is common but not often assessed in the routine clinical care among males on opiate substitute treatment.
Objective: To determine the association between clinical variables and erectile dysfunction (ED) among men on methadone maintenance therapy (MMT).
Methods: A cross-sectional study involving 108 participants who attended the Drug Clinic, Hospital Kuala Lumpur. The instruments used include the Structured Clinical Interview for DSM-IV Axis-I Disorder (SCID-I), Beck Depression Inventory (BDI) and International Index of Erectile Function-15 (IIEF-15).
Results: Concurrent heroin abuse was significantly associated with presence of ED (p=0.024). Treatment factors including methadone dose and duration of methadone treatment were not significantly associated with ED.
Conclusion: Education on sexual dysfunction as a potential adverse effect and its association with illicit heroin use should be considered in the doctor-patient consultation to encourage treatment adherence and abstinence from heroin.
Study site: Drug Clinic, Hospital Kuala Lumpur, Malaysia

Matched MeSH terms: Opiate Substitution Treatment
Fulltext Implementing methadone maintenance treatment in prisons in Malaysia

Wickersham JA, Marcus R, Kamarulzaman A, Zahari MM, Altice FL

Bull World Health Organ, 2013 Feb 01;91(2):124-9.
PMID: 23554524 DOI: 10.2471/BLT.12.109132

PROBLEM: In Malaysia, human immunodeficiency virus (HIV) infection is highly concentrated among people who inject opioids. For this reason, the country undertook a three-phase roll-out of a methadone maintenance treatment (MMT) programme. In Phase 3, described in this paper, MMT was implemented within prisons and retention in care was assessed.
APPROACH: After developing standard operating procedures and agreement between its Prisons Department and Ministry of Health, Malaysia established pilot MMT programmes in two prisons in the states of Kelantan (2008) and Selangor (2009) - those with the highest proportions of HIV-infected prisoners. Community-based MMT programmes were also established in Malaysia to integrate treatment activities after prisoners' release.
LOCAL SETTING: Having failed to reduce the incidence of HIV infection, in 2005 Malaysia embarked on a harm reduction strategy.
RELEVANT CHANGES: STANDARD OPERATING PROCEDURES WERE MODIFIED TO: (i) escalate the dose of methadone more slowly; (ii) provide ongoing education and training for medical and correctional staff and inmates; (iii) increase the duration of methadone treatment before releasing prisoners; (iv) reinforce linkages with community MMT programmes after prisoners' release; (v) screen for and treat tuberculosis; (vi) escalate the dose of methadone during treatment for HIV infection and tuberculosis; and (vii) optimize the daily oral dose of methadone (> 80 mg) before releasing prisoners.
LESSONS LEARNT: Prison-based MMT programmes can be effectively implemented but require adequate dosing and measures are needed to improve communication between prison and police authorities, prevent police harassment of MMT clients after their release, and improve systems for tracking release dates.

Matched MeSH terms: Opiate Substitution Treatment/methods*; Opiate Substitution Treatment/trends
Depression in male patients on methadone maintenance therapy

Baharudin A, Mislan N, Ibrahim N, Sidi H, Nik Jaafar NR

Asia Pac Psychiatry, 2013 Apr;5 Suppl 1:67-73.
PMID: 23857840 DOI: 10.1111/appy.12069

INTRODUCTION: Depression is one of the most common psychiatric conditions in men. The aim of the study was to determine the depressive symptoms and associated factors among men on methadone maintenance therapy (MMT).
METHODS: A cross-sectional study was conducted involving 108 subjects who attended the Drug Clinic at Hospital Kuala Lumpur. The instruments used include the Structured Clinical Interview for Diagnostic and Statistical Manual, Fourth Edition Axis-I Disorder, Beck Depression Inventory and the 15-item International Index of Erectile Function.
RESULTS: The rate of depression was 44.4%. There were significant associations between Malay ethnicity, secondary education level and concurrent illicit cannabis use with depression (P treatment.
KEYWORDS: depression; methadone maintenance therapy
Study site: Drug Clinic, Hospital Kuala Lumpur, Malaysia

Matched MeSH terms: Opiate Substitution Treatment/psychology*
Methadone maintenance treatment versus methadone maintenance treatment plus auricular acupuncture: impacts on patient satisfaction and coping mechanism

Lua PL, Talib NS, Ismail Z

J Pharm Pract, 2013 Dec;26(6):541-50.
PMID: 23764566 DOI: 10.1177/0897190013489574

This study intended to (1) describe the baseline patient satisfaction level and preferred coping strategies and (2) assess patient satisfaction and coping mechanisms pre- and postintervention. Patients on methadone maintenance treatment (MMT) in Terengganu, Malaysia, were randomized into either MMT or MMT plus auricular acupuncture (MMT + AA) groups. All received the standard MMT, while participants on MMT + AA underwent concurrent AA session thrice weekly for 2 months (each session = 30 minutes). Data analysis was carried out using SPSS 16.0, employing descriptive and nonparametric statistics. Participations were received from 97 eligible male patients (median age = 36.0 years; Malay = 97.9%). After screening for dropouts, only 69 patients were considered for subsequent analysis (MMT = 40; MMT + AA = 29). At preintervention, both groups did not differ significantly in the parameters investigated. During postintervention, no significant difference was detected for satisfaction level but coping-wise, substance use was significantly and frequently adopted by MMT + AA patients compared to MMT respondents (P < .05). On separate analysis, those who received MMT alone adopted active coping, venting, and self-blame significantly more frequently postintervention (P < .05). Nevertheless, no significant difference for coping styles of MMT + AA patients was exhibited over time (P >.05). The addition of AA therapy into the standard MMT treatment did not seem to influence patient satisfaction and their coping ways.

Matched MeSH terms: Opiate Substitution Treatment
Auricular acupuncture for drug dependence: an open-label randomized investigation on clinical outcomes, health-related quality of life, and patient acceptability

Lua PL, Talib NS

Altern Ther Health Med, 2013;19(4):28-42.
PMID: 23981370

Substance abuse has been prevalent in Malaysia for many years and currently represents one of the main concerns to its society. The limitations of conventional therapies have resulted in efforts to explore the potentia of complementary therapies in the management of drug addiction. The evidence for auricular acupuncture (AA) as a potential complementary therapy for drug addiction is still limited and inconclusive.

Matched MeSH terms: Opiate Substitution Treatment/methods
The prevalence of sexual dysfunction among male patients on methadone and buprenorphine treatments: a meta-analysis study

Yee A, Loh HS, Hisham Hashim HM, Ng CG

J Sex Med, 2014 Jan;11(1):22-32.
PMID: 24344738 DOI: 10.1111/jsm.12352

INTRODUCTION: For many years, methadone has been recognized as an effective maintenance treatment for opioid dependence. However, of the many adverse events reported, sexual dysfunction is one of the most common side effects.
AIM: We conducted a meta-analysis to evaluate the prevalence of sexual dysfunction among male patients on methadone and buprenorphine treatments.
METHODS: Relevant studies published from inception until December 2012 were identified by searching PubMed, OVID, and Embase. Studies were selected using prior defined criteria. Heterogeneity, publication bias, and odds ratio were assessed thoroughly.
MAIN OUTCOME MEASURES: To examine the prevalence and odds ratio of sexual dysfunctions among the methadone and buprenorphine groups.
RESULTS: A total of 1,570 participants from 16 eligible studies were identified in this meta-analysis. The studies provided prevalence estimates for sexual dysfunction among methadone users with a meta-analytical pooled prevalence of 52% (95% confidence interval [CI], 0.39-0.65). Only four studies compared sexual dysfunction between the two groups, with a significantly higher combined odds ratio in the methadone group (OR = 4.01, 95% CI, 1.52-10.55, P = 0.0049).
CONCLUSIONS: Evidence showed that the prevalence of sexual dysfunction was higher among the users of methadone compared with buprenorphine. Patients with sexual difficulty while on methadone treatment were advised to switch to buprenorphine.

Matched MeSH terms: Opiate Substitution Treatment/adverse effects*
What has been achieved in HIV prevention, treatment and care for people who inject drugs, 2010-2012? A review of the six highest burden countries

Degenhardt L, Mathers BM, Wirtz AL, Wolfe D, Kamarulzaman A, Carrieri MP, et al.

Int J Drug Policy, 2014 Jan;25(1):53-60.
PMID: 24113623 DOI: 10.1016/j.drugpo.2013.08.004

In 2010 the international HIV/AIDS community called on countries to take action to prevent HIV transmission among people who inject drugs (PWID). To set a baseline we proposed an "accountability matrix", focusing upon six countries accounting for half of the global population of PWID: China, Malaysia, Russia, Ukraine, Vietnam and the USA. Two years on, we review progress.

Matched MeSH terms: Opiate Substitution Treatment/trends
Burden and nutritional deficiencies in opiate addiction- systematic review article

Nabipour S, Ayu Said M, Hussain Habil M

Iran J Public Health, 2014 Aug;43(8):1022-32.
PMID: 25927032

Addiction to the illicit and prescribed use of opiate is an alarming public health issue. Studies on addictive disorders have demonstrated severe nutritional deficiencies in opiate abusers with behavioral, physiological and cognitive symptoms. Opiate addiction is also link with a significant number of diseases including Human Immunodeficiency Virus (HIV), Hepatitis C Virus (HCV) and other blood borne diseases generally stem from the use of needles to inject heroin. The use of medication assisted treatment for opioid addicts in combination with behavioural therapies has been considered as a highly effective treatment. Methadone is a long-lasting μ-opioid agonist and a pharmacological tool which attenuates withdrawal symptoms effectively replacement therapies. This review article aims to explain opiate addiction mechanisms, epidemiology and disease burden with emphasis on dietary and nutritional status of opiate dependent patients in methadone maintenance therapy.

Matched MeSH terms: Opiate Substitution Treatment
A mosque-based methadone maintenance treatment strategy: implementation and pilot results

Rashid RA, Kamali K, Habil MH, Shaharom MH, Seghatoleslam T, Looyeh MY

Int J Drug Policy, 2014 Nov;25(6):1071-5.
PMID: 25107831 DOI: 10.1016/j.drugpo.2014.07.003

BACKGROUND: This paper describes the rationale, implementation and operation of a "world first" Islamic inspired methadone maintenance treatment project delivered in a mosque setting and presents the outcome for the first group of participants. The project explored the viability of expanding addiction recovery services through the network of mosques in Muslim communities.
METHODS: The project combined methadone maintenance with peer and religious counseling. Participants consisted of 36 male Muslim heroin users who went through the project. Urine tests and self-reported measures on various dimensions relevant to drug use and quality of life were collected at baseline and 12 months.
RESULTS: The project had a 12 month retention rate of 80%. At 12 months all but one participant tested negative for opioids and other substances. Self-report measures showed significant reductions in the degree and variety of drug use, improvements in general health, and psychological and social functioning of participants. Qualitative data showed that availability of methadone, convenient location and religion were the main reasons drawing participants to the program.
CONCLUSIONS: Mosques are viable venues for offering medication assisted recovery services and offer an alternative approach for managing addiction in Muslim communities. The prospect of mobilizing community resources to offer community-oriented long-term recovery management programs in mosques and other places of worship deserves consideration.
KEYWORDS: Islamic intervention; MMT in mosque; Malaysia; Methadone maintenance

Matched MeSH terms: Opiate Substitution Treatment*
Quantitation of methadone and metabolite in patients under maintenance treatment

Diong SH, Mohd Yusoff NS, Sim MS, Raja Aziddin RE, Chik Z, Rajan P, et al.

J Anal Toxicol, 2014 Nov-Dec;38(9):660-6.
PMID: 25106416 DOI: 10.1093/jat/bku096

Gas chromatography-mass spectrometry quantitative method was developed to monitor concentrations of methadone and its metabolite 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine (EDDP) in plasma and urine of patients. The developed method was simple, accurate and reproducible to quantify methadone and EDDP in plasma and urine samples in the concentration range of 15-1,000 and 50-2,000 ng/mL, respectively. The proposed analytical method was applied to plasma and urine samples obtained from 96 patients undergoing methadone maintenance treatment (MMT) with daily methadone doses of 2-120 mg/day. Urinary methadone excretion was observed to be significantly affected by pH, in which the ratio of methadone to EDDP was two times higher in acidic urine (P = 0.029). The findings of this study further enhance the guidelines for monitoring of methadone treatment among outpatients. Methadone-to-EDDP ratio in urine was found to be consistent at 24 and 4 h, hence suggesting the possibility that outpatients may be monitored with single urine sample in order to check for compliance. This study which provides data on peak concentrations of methadone and EDDP as well as the ratio of both compounds has added to the body of knowledge regarding pharmacokinetic properties of methadone among heroin-dependent patients under MMT.
Study site: University Malaya Medical Centre (UMMC), HKL, University Malaya Centre for Addiction Sciences (UMCAS) and Rehabilitation Centre of Al-Rahman Mosque, Kuala Lumpur, Malaysia

Matched MeSH terms: Opiate Substitution Treatment*
Fulltext Clinical factors associated with sexual dysfunction among men in methadone maintenance treatment and buprenorphine maintenance treatment: a meta-analysis study

Yee A, Loh HS, Hisham Hashim HM, Ng CG

Int J Impot Res, 2014 Sep-Oct;26(5):161-6.
PMID: 24990199 DOI: 10.1038/ijir.2014.18

Methadone maintenance treatment is proven to be effective treatment for opioid dependence. Of the many adverse events reported, sexual dysfunction is one of the most common side effects. However, there may be other clinical factors that are associated with sexual dysfunction among methadone users. We conducted a meta-analysis to examine the clinical factors associated with sexual dysfunction among male patients on methadone and buprenorphine treatments, of which eligible studies were selected using prior defined criteria. A total of 2619 participants from 16 eligible studies, published from inception till December 2012, were identified from the PubMed, OVID and EMBASE databases. The included studies provided prevalence estimates for sexual dysfunction among methadone users with a meta-analytical pooled prevalence of 52% (95% confidence interval (CI), 0.39-0.65). Only four studies compared sexual dysfunction between the two groups, with a significantly higher combined odds ratio in the methadone group (odds ratio=4.01, 95% CI, 1.52-10.55, P=0.0049). Our study shows that eight clinical factors are associated with sexual dysfunction among men receiving opioid substitution treatment, namely age, hormone assays, duration of treatment, methadone dose, medical status, psychiatric illness, other current substance use and familial status, and methadone versus buprenorphine treatment. Despite the methodological limitations, the findings of this meta-analysis study may offer better insights to clinicians in dealing with both sexual dysfunction and its related problems.

Matched MeSH terms: Opiate Substitution Treatment/adverse effects*
Fulltext Assessment effects of maintenance therapy on quality of life of opiate abusers

Lim, Dwee Shion, Sambamoorthy, Vijayrama Rao, Ling, Diana Soon Ying, Sharifah Sulaiha Syed Aznal

ASEAN Journal of Psychiatry, 2014;15(2):131-139.
MyJurnal

Objective: This study was conducted to assess the effects of Methadone Maintenance Therapy (MMT) and buprenorphine-naloxone Maintenance Therapy (BNX) on the Quality of life (QoL) of opiate abusers. Methods: The QoL status of opioid-dependent patients was assessed using the WHOQOL-BREF questionnaire. It is a cross-sectional study involving a total of 108 patients who received MMT or BNX therapy in Malaysia from May 2011 to September 2011. Results: A statistically significant difference in the overall QoL and psychological aspect among patients on MMT was observed. On the contrary, the scores of overall QoL and quality of social relationship for BNX group were higher in patients with lower dosage. Conclusion: The comparison between patients on high dose MMT and high dose BNX exhibited significant difference in the overall QoL especially in psychological, social relationship and environment domains, with the high dose MMT group having better mean score. ASEAN Journal of Psychiatry, Vol. 15 (2): July - December 2014: 131-139.

Matched MeSH terms: Opiate Substitution Treatment
Fulltext Challenges in managing HIV in people who use drugs

Kamarulzaman A, Altice FL

Curr. Opin. Infect. Dis., 2015 Feb;28(1):10-6.
PMID: 25490106 DOI: 10.1097/QCO.0000000000000125

HIV management in people who use drugs (PWUD) is typically complex and challenging due to the presence of multiple medical and psychiatric comorbidities as well as social, physical, economic and legal factors that often disrupt the HIV continuum of care. In this review, we describe the individual, health systems and societal barriers to HIV treatment access and care retention for PWUD. In addition, the clinical management of HIV-infected PWUD is often complicated by the presence of multiple infectious and noninfectious comorbidities.

Matched MeSH terms: Opiate Substitution Treatment/methods
Treating heroin addiction: bridging the past and future--a Malaysian experience

Robson N, Rashid R, Nazar M, Habil H

Asia Pac Psychiatry, 2015 Mar;7(1):121-5.
PMID: 23857876 DOI: 10.1111/j.1758-5872.2012.00194.x
Matched MeSH terms: Opiate Substitution Treatment*

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