Displaying publications 41 - 60 of 112 in total

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  1. Madden L, Bojko MJ, Farnum S, Mazhnaya A, Fomenko T, Marcus R, et al.
    Int J Drug Policy, 2017 11;49:48-53.
    PMID: 28957756 DOI: 10.1016/j.drugpo.2017.07.025
    BACKGROUND: Opioid agonist therapies (OAT) like methadone and buprenorphine maintenance treatment remain markedly under-scaled in Ukraine despite adequate funding. Clinicians and administrators were assembled as part of an implementation science strategy to scale-up OAT using the Network for Improvement of Addiction Treatment (NIATx) approach.

    METHODS: Nominal Group Technique (NGT), a key ingredient of the NIATx toolkit, was directed by three trained coaches within a learning collaborative of 18 OAT clinicians and administrators to identify barriers to increase OAT capacity at the regional "oblast" level, develop solutions, and prioritize local change projects. NGT findings were supplemented from detailed notes collected during the NGT discussion.

    RESULTS: The top three identified barriers included: (1) Strict regulations and inflexible policies dictating distribution and dispensing of OAT; (2) No systematic approach to assessing OAT needs on regional or local level; and (3) Limited funding and financing mechanisms combined with a lack of local/regional control over funding for OAT treatment services.

    CONCLUSIONS: NGT provides a rapid strategy for individuals at multiple levels to work collaboratively to identify and address structural barriers to OAT scale-up. This technique creates a transparent process to address and prioritize complex issues. Targeting these priorities allowed leaders at the regional and national level to advocate collectively for approaches to minimize obstacles and create policies to improve OAT services.

    Matched MeSH terms: Methadone/therapeutic use
  2. Manan MM, Ali SM, Khan MA, Jafarian S, Hameed MA
    Pak J Pharm Sci, 2013 Jul;26(4):841-6.
    PMID: 23811468
    This study is an observational cross-sectional study aimed to examine the possible demographic and social characteristics of patients enrolled at the Methadone Maintenance Therapy Adherence Clinic (MMTAC) in Malaysia. Medical records from year 2009 - 2011 were Reviewed. Demographic, social characteristics and laboratory examinations such as age, gender, race, clinic attendances and urine analysis were recorded. Subjects were selected by means of convenient sampling but based on the specified inclusion and exclusion criteria. Data were analyzed by either Chi-square test, Fisher's exact test Mann-Whitney U-test, with the limit of significance was set at p < 0.05. Demographically, this study found that the ratio of Malays, Chinese and Indian enrolled to the MMTAC program is similar to the distribution of races in Malaysia. Their starting age for drug use was between 14-35 years and the age to enrolment between 30-58 years. Socially, many are unemployed, lowly educated and married. Most are drug users with a high percentage of HCV accompanied with impaired liver function. Retention rate was 87% but illicit drug use was at 57.50%. However, percentage of employment increased significantly after therapy. The study managed to identify several demographical and social distributions of patients attending the MMTAC. Although attendance rate was high, many were on illicit drug use. Nevertheless, employment rate improved significantly.
    Study site: government methadone clinic in Klang, Selangor, Malaysia
    Matched MeSH terms: Methadone/therapeutic use*
  3. Manan MM, Ali SM, Khan MA, Jafarian S
    Pak J Pharm Sci, 2015 Sep;28(5):1705-11.
    PMID: 26408891
    Out-of-pocket (OOP) payments may burden Methadone Maintenance Clinic patients. Since treatment is fully subsidized by the government, financial constraint might lead to patients being made to pay or be given incentive for inconvenience of therapy. This study thus evaluates the characteristic and commitment of methadone therapy patient's in terms of OOP cost, Willingness-To-Pay (WTP) and Willingness-To-Accept (WTA) concept. This survey utilizes the questionnaire by Boris ova & Goodman (2003) on the OOP, WTP and WTA. The forty adult patient's selected medical records from year 2009-2011 were from an urban government methadone clinic. Subject's selection was by convenient sampling based on the predetermined criteria. Most were male (95%) and Malay (60%) was the predominant group. Patients were group into three income groups; ≤ RM1000, ≥ RM1000 -≤ RM2000 and ≥ RM3000. The average OOP cost per month was RM391.30 (s.d RM337.50), which is about 35% of employed patient's monthly income. The wide variation could be attributed by high inter-individual and significant differences between patients in terms of transport, times taken to clinic, cost per trip and weekly household income (p=<0.05). Patients with income of less than RM1000 showed the highest tendency to pay for treatment, asked for the least money for inconvenience and many are unwilling to accept any payments. These findings showed that WTP and WTA is less of a concern for patients in the low-income group. To conclude, OOP payment is not a treatment barrier for most of the urban MMT patients.
    Matched MeSH terms: Methadone/therapeutic use*
  4. Mitra S, Grant C, Nolan S, Mohd Salleh NA, Milloy MJ, Richardson L
    AIDS Behav, 2022 Jun;26(6):1933-1942.
    PMID: 34977956 DOI: 10.1007/s10461-021-03543-y
    A robust evidence-base describes the beneficial association between opioid agonist therapy (OAT) and HIV-related outcomes among people living with HIV and opioid use disorder. While some evidence suggests the stabilizing effect of OAT on antiretroviral therapy (ART) treatment engagement, less is understood about the potential for an inverse relationship. We sought to examine the relationship between transitions in ART engagement and transitions onto OAT. We used data from a prospective cohort of people living with HIV who use drugs in Vancouver, Canada-a setting with no-cost access to ART and low or no-cost access to OAT among low-income residents. Restricting the sample to those who reported daily or greater opioid use, we used generalized linear mixed-effects models to estimate the relationships between our primary outcome of transitions onto OAT (methadone or buprenorphine/naloxone) and transitions (1) onto ART and (2) into ART adherence. Subsequent analyses assessed the temporal sequencing of transitions. Between 2005 and 2017, among 433 participants, 48.3% reported transitioning onto OAT at least once. In concurrent analyses, transitions onto ART were positively and significantly associated with transitions onto OAT. Temporal sequencing revealed that transitions into OAT were also positively and significantly associated with subsequent transitions onto ART. OAT's potential to facilitate the uptake of ART points to the continued need to scale-up low-threshold, client-centered substance use services integrated alongside HIV care.
    Matched MeSH terms: Methadone/therapeutic use
  5. Moey CH, Yee A, Muhamud Kayat SB
    J Addict Dis, 2020 04 24;38(3):263-270.
    PMID: 32329412 DOI: 10.1080/10550887.2020.1748990
    Background and Objectives: Smoking is the primary cause of preventable death and is highly prevalent among patients on methadone assisted treatment (MAT). This study aims to assess the prevalence of tobacco use disorder (TUD) among patients on MAT, the factors associated with TUD, and to examine the association between TUD and quality of life.Methods: A total of 171 male patients receiving MAT in two Malaysian government hospitals were assessed for TUD, levels of nicotine dependence, relevant associated factors and quality of life using DSM-5 criteria, Fagerström Test for Nicotine Dependence (FTND), Opiate Treatment Index (OTI), Mini-International Neuropsychiatric Interview (M.I.N.I.) and World Health Organization Quality of Life (WHOQOL)-BREF.Results: The prevalence of TUD was 81.3%. Being employed was significantly associated with having a TUD. Among the patients with TUD, the mean FTND score was 3.8 (SD ± 2.0). Being younger, having poorer social function, and presence of current opioid dependence were significantly correlated with higher FTND scores. There was no significant difference in the quality of life between patients with and without TUD. Following multiple linear regression analysis, being unmarried and poor health status were the two factors that significantly predicted a lower quality of life in all four domains of WHOQOL-BREF.Conclusions: Given the high prevalence of TUD among methadone-assisted patients, smoking cessation treatment should be integrated into the MAT program in Malaysia. Also, addressing patients' marital and health issues during MAT can be instrumental in improving their quality of life.
    Matched MeSH terms: Methadone/therapeutic use
  6. Mohamad N, Abdul Jalal MI, Hassan A, Abdulkarim Ibrahim M, Salehuddin R, Abu Bakar NH
    Pak J Med Sci, 2013 Sep;29(5):1132-6.
    PMID: 24353706
    OBJECTIVES: This study aimed to compare the QTc interval between low and high dose methadone groups and evaluate the pattern of QTc variation.
    METHODS: This is a prospective cohort study conducted from December 2010 till August 2011 at Malaysian University of Science's Hospital. Forty six subjects, grouped in high dose (>80mg) and low dose (<80mg) oral methadone, were followed-up at 4-weekly for QTc measurements. Relevant demographic and biochemical profiles were taken at intervals with concurrent QTc measurements.
    RESULTS: No significant QTc differences between methadone dosage groups were found at Week 0 (434ms vs 444ms, p = 0.166) and week 8 (446.5ms vs 459ms, p = 0.076), but not at week 4(435ms vs 450ms, p = 0.029). However, there were significant associations between the groups with QTc prolongation at week 0 and 4 (OR 4.29(95% CI 1.01, 18.72) p=0.044 and OR 5.18 (95% CI 1.34, 20.06) p =0.013, respectively) but not at week 8 (OR 2.44 (95% CI 0.74, 8.01) p=0.139). On multivariate analysis, dose group was the sole significant factor for QTc prolongation for week 0 and 4 (p values 0.047 and 0.017, respectively), but not at week 8.
    CONCLUSION: High-dose methadone group is more likely to develop prolonged QTc than low-dose group. However, such effects were inconsistent and occurred even during chronic methadone therapy, mandating judicious QTc and serum methadone monitoring.
    KEYWORDS: High Dose; Low Dose; Methadone; QTc
    Matched MeSH terms: Methadone*
  7. Mohamad N, Bakar NH, Musa N, Talib N, Ismail R
    Harm Reduct J, 2010;7:30.
    PMID: 21167035 DOI: 10.1186/1477-7517-7-30
    BACKGROUND: Methadone is a synthetic opiate mu receptor agonist that is widely used to substitute for illicit opiates in the management of opiate dependence. It helps prevent opiate users from injecting and sharing needles which are vehicles for the spread of HIV and other blood borne viruses. This study has the objective of determining the utility of daily methadone dose to predict retention rates and re-injecting behaviour among opiate dependents.
    METHODS: Subjects comprised opiate dependent individuals who met study criteria. They took methadone based on the Malaysian guidelines and were monitored according to the study protocols. At six months, data was collected for analyses. The sensitivity and specificity daily methadone doses to predict retention rates and re-injecting behaviour were evaluated.
    RESULTS: Sixty-four patients volunteered to participate but only 35 (54.69%) remained active and 29 (45.31%) were inactive at 6 months of treatment. Higher doses were significantly correlated with retention rate (p < 0.0001) and re-injecting behaviour (p < 0.001). Of those retained, 80.0% were on 80 mg or more methadone per day doses with 20.0% on receiving 40 mg -79 mg.
    CONCLUSIONS: We concluded that a daily dose of at least 40 mg was required to retain patients in treatment and to prevent re-injecting behaviour. A dose of at least 80 mg per day was associated with best results.
    Matched MeSH terms: Methadone
  8. Mohammadi M, Kazeminia M, Abdoli N, Khaledipaveh B, Shohaimi S, Salari N, et al.
    Health Qual Life Outcomes, 2020 Nov 23;18(1):373.
    PMID: 33225933 DOI: 10.1186/s12955-020-01599-3
    BACKGROUND: Opioids addiction and misuse are among the major problems in the world today. There have been several preliminary studies examining the effect of methadone on depression among addicts, however, these studies have reported inconsistent and even contradictory results. Therefore, the aim of the present study was to determine the effect of methadone on depression in addicts in Iran and around the world, using a meta-analysis approach.

    METHODS: This study was a systematic review and meta-analysis including articles published in the SID, MagIran, IranMedex, IranDoc, Cochrane, Embase, ScienceDirect, Scopus, PubMed and Web of Science databases were searched systematically to find articles published from 2006 to March 2019. Heterogeneity index was determined using the Cochran's test (Qc) and I2. Considering heterogeneity of studies, the random effects model was used to estimate the standardized difference of mean score for depression. Subsequently, the level of depression reduction in Iran and worldwide in the intervention group before and after the testwas measured.

    RESULTS: A total of 19 articles met the inclusion criteria, and were therefore selected for this systematic review and meta-analysis. The sample size of the intervention group in the selected studies was 1948. According to the meta-analysis results, the mean depression score in the intervention group was 26.4 ± 5.6 and 18.4 ± 2.6 before and after intervention respectively, indicating the reducing effect of methadone on depression, and this difference was statistically significant (P 

    Matched MeSH terms: Methadone/therapeutic use*
  9. Mohd Salleh NA, Fairbairn N, Nolan S, Barrios R, Shoveller J, Richardson L, et al.
    HIV Med, 2019 10;20(9):606-614.
    PMID: 31359615 DOI: 10.1111/hiv.12777
    OBJECTIVES: We sought to examine the association between dispensation of methadone maintenance therapy (MMT) and antiretroviral therapy (ART) at the same facility, across multiple low-barrier dispensing outlets, and achieving optimal adherence to ART among people who use illicit drugs (PWUD).

    METHODS: We used data from the AIDS Care Cohort to Evaluate Exposure to Survival Services (ACCESS) study, a long-running study of a community-recruited cohort of HIV-positive PWUD, linked to comprehensive HIV clinical records in Vancouver, Canada, a setting of no-cost, universal access to HIV care. The longitudinal relationship between MMT-ART dispensation at the same facility and the odds of ≥ 95% ART adherence was analysed using multivariable generalized linear mixed-effects modelling. We conducted a further analysis using a marginal structural mode with inverse probability of treatment weights as a sensitivity analysis.

    RESULTS: This study included data on 1690 interviews of 345 ART- and MMT-exposed participants carried out between June 2012 and December 2017. In the final multivariable model, MMT-ART dispensation, compared with nondispensation at the same facility, was associated with greater odds of achieving ≥ 95% adherence [adjusted odds ratio (AOR) 1.56; 95% confidence interval (CI) 1.26-1.96]. A marginal structural model estimated a 1.48 (95% CI 1.15-1.80) greater odds of ≥ 95% adherence among participants who reported MMT-ART dispensation at the same facility compared with those who did not.

    CONCLUSIONS: The odds of achieving optimal adherence to ART were 56% higher during periods in which MMT and ART medications were dispensed at the same facility, in a low-barrier setting. Our findings highlight the need to consider a simpler integrated approach with medication dispensation at the same facility in low-threshold settings.

    Matched MeSH terms: Methadone/therapeutic use
  10. Mohd Salleh NA, Voon P, Karamouzian M, Milloy MJ, Richardson L
    Drug Alcohol Depend, 2021 01 01;218:108342.
    PMID: 33097340 DOI: 10.1016/j.drugalcdep.2020.108342
    BACKGROUND: The beneficial links between engagement in methadone maintenance therapy (MMT) and HIV treatment outcomes have been extensively described. Nevertheless, people who use drugs (PWUD) continue to experience suboptimal HIV treatment outcomes. In this systematic review, we sought to identify components of MMT service provision that are associated with improvements in HIV care outcomes across the HIV care cascade.

    METHODS: We searched for peer-reviewed studies in online databases. To be eligible for inclusion in this review, studies must have involved a population or sub-population of PWUD engaged in MMT; report improved uptake of HIV testing, exposure to ART, or HIV-1 RNA plasma viral load suppression; provide details on MMT services; and be published in English between 1 January 2006 until 31 December 2018.

    RESULTS: Out of the 5594 identified records, 22 studies were eligible for this systematic review. Components of MMT services associated with HIV care cascade outcomes described in the studies were classified in three categories of care models: 1) standard MMT care with adequate doses, 2) standard MMT care and alongside additional medical component(s), and 3) standard MMT care, additional medical component(s) as well as informational or instrumental social support.

    CONCLUSION: The few studies identified reflect a scarcity of evidence on the role of social support to increase the benefits of MMT for PWUD who are living with HIV. Further research is needed to assess the role of medical and social service components in MMT care delivery in advancing PWUD along the HIV care cascade.

    Matched MeSH terms: Methadone/therapeutic use*
  11. Mohemmad Rizal MR, Hayat Khan A, Noor Harun S, Saleh Z
    J Pharm Bioallied Sci, 2020 Nov;12(Suppl 2):S657-S662.
    PMID: 33828356 DOI: 10.4103/jpbs.JPBS_253_19
    Objectives: The objective of this study was to review the significant differences of MMT outcomes related to drug use behavior, health status, and social behavioral functioning between genders.

    Materials and Methods: A search of publication was conducted in PubMed/MEDLINE, Embase, CINAHL, PsycINFO, and Scopus database. Two reviewers independently screened the titles, abstracts, and keyword use for the search. Inclusion of studies was based on randomized controlled trials (RCTs) or observational studies that report the difference of opioid addiction treatment outcomes between genders. Any conflict between the two reviewers was resolved through discussion and consensus. The systematic review followed the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines and was registered in PROSPERO with a registration number CRD42019116261.

    Results: A total of 25 studies were evaluated as part of qualitative synthesis. The review resulted in three main themes, which are (1) improving well-being and methadone-related outcome (five subthemes), (2) impact on social and behavioral (four subthemes), and (3) illicit drug use pattern-related behavior (four subthemes).

    Conclusion: This review will highlight how men and women differ in methadone treatment outcomes for further application and improvement in the clinical setting.

    Matched MeSH terms: Methadone
  12. Motlagh F, Ibrahim F, Rashid R, Shafiabady N, Seghatoleslam T, Habil H
    Psychopharmacology (Berl), 2018 Nov;235(11):3273-3288.
    PMID: 30310960 DOI: 10.1007/s00213-018-5035-0
    Methadone as the most prevalent opioid substitution medication has been shown to influence the neurophysiological functions among heroin addicts. However, there is no firm conclusion on acute neuroelectrophysiological changes among methadone-treated subjects as well as the effectiveness of methadone in restoring brain electrical abnormalities among heroin addicts. This study aims to investigate the acute and short-term effects of methadone administration on the brain's electrophysiological properties before and after daily methadone intake over 10 weeks of treatment among heroin addicts. EEG spectral analysis and single-trial event-related potential (ERP) measurements were used to investigate possible alterations in the brain's electrical activities, as well as the cognitive attributes associated with MMN and P3. The results confirmed abnormal brain activities predominantly in the beta band and diminished information processing ability including lower amplitude and prolonged latency of cognitive responses among heroin addicts compared to healthy controls. In addition, the alteration of EEG activities in the frontal and central regions was found to be associated with the withdrawal symptoms of drug users. Certain brain regions were found to be influenced significantly by methadone intake; acute effects of methadone induction appeared to be associative to its dosage. The findings suggest that methadone administration affects cognitive performance and activates the cortical neuronal networks, resulting in cognitive responses enhancement which may be influential in reorganizing cognitive dysfunctions among heroin addicts. This study also supports the notion that the brain's oscillation powers and ERPs can be utilized as neurophysiological indices for assessing the addiction treatment traits.
    Matched MeSH terms: Methadone/administration & dosage*
  13. Mukherjee TI, Wickersham JA, Desai MM, Pillai V, Kamarulzaman A, Altice FL
    Drug Alcohol Depend, 2016 07 01;164:120-7.
    PMID: 27207155 DOI: 10.1016/j.drugalcdep.2016.04.037
    INTRODUCTION: Methadone maintenance therapy (MMT) is crucial for HIV prevention and treatment in people who inject opioids. In Malaysia, a large proportion of the prison population is affected by both HIV and opioid use disorders. This study assessed individual preferences and factors associated with interest in receiving MMT among male prisoners meeting criteria for opioid dependence in Malaysia.

    METHODS: A convenience sample of 96 HIV-positive and 104 HIV-negative incarcerated men who met pre-incarceration criteria for opioid dependence was interviewed using a structured questionnaire to examine participant characteristics and attitudes toward MMT. Factors associated with interest in prison-based MMT initiation were identified using logistic regression analysis.

    RESULTS: Among all participants, 85 (42.5%) were interested in receiving MMT within prison. Independent correlates of interest in prison-based MMT were being previously married (AOR=4.15, 95% CI: 1.15, 15.02), previously incarcerated (AOR=5.68, 95% CI: 1.54, 21.02), depression (AOR=3.66, 95% CI: 1.68, 7.98), daily heroin use in the 30days prior to incarceration (AOR=5.53, 95% CI: 1.65, 18.58), and more favorable attitudes toward MMT (AOR=19.82, 95% CI: 6.07, 64.74).

    CONCLUSIONS: Overall, interest in receiving prison-based MMT was low, and was associated with adverse social, mental health, and drug use consequences. Incarceration provides a unique opportunity to initiate MMT for those who need it, however, optimal scale-up efforts must be systemic and address modifiable factors like improving attitudes toward and motivation for MMT. Informed or shared decision-making tools may be useful in improving expectations and acceptability of MMT.

    Matched MeSH terms: Methadone/therapeutic use*
  14. Mukherjee TI, Pillai V, Ali SH, Altice FL, Kamarulzaman A, Wickersham JA
    Int J Drug Policy, 2017 09;47:144-152.
    PMID: 28652072 DOI: 10.1016/j.drugpo.2017.05.041
    BACKGROUND: Approximately 40%-90% of people who inject drugs (PWID) in Malaysia have hepatitis C (HCV). PWID continue to be disproportionately affected by HCV due to their lack of knowledge, perceived risk and interest in HCV treatment. Education interventions may be an effective strategy for increasing HCV knowledge in PWID, and harm reduction services are uniquely positioned to implement and deploy such interventions.

    METHODS: We recruited 176 clients from methadone maintenance treatment (MMT: N=110) and needle/syringe programs (NSP: N=66) between November 2015 and August 2016. After baseline knowledge assessments, clients participated in a standardized, 45-min HCV education program and completed post-intervention knowledge assessments to measure change in knowledge and treatment interest.

    RESULTS: Participants were mostly male (96.3%), Malay (94.9%), and in their early 40s (mean=42.6years). Following the intervention, overall knowledge scores and treatment interest in MMT clients increased by 68% and 16%, respectively (p<0.001). In contrast, NSP clients showed no significant improvement in overall knowledge or treatment interest, and perceived greater treatment barriers. Multivariate linear regression to assess correlates of HCV knowledge post-intervention revealed that optimal dosage of MMT and having had an HIV test in the past year significantly increased HCV knowledge. Having received a hepatitis B vaccine, however, was not associated with increased HCV knowledge after participating in an education session.

    CONCLUSION: Generally, HCV knowledge and screening is low among clients engaged in MMT and NSP services in Malaysia. Integrating a brief, but comprehensive HCV education session within harm reduction services may be a low-cost and effective strategy in improving overall HCV knowledge and risk behaviors in resource-limited settings. In order to be an effective public health approach, however, education interventions must be paired with strategies that improve social, economic and political outcomes for PWID. Doing so may reduce HCV disparities by increasing screening and treatment interest.

    Matched MeSH terms: Methadone/therapeutic use*
  15. 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: Methadone/therapeutic use*
  16. Musa R, Abu Bakar AZ, Ali Khan U
    Asia Pac J Public Health, 2012 Sep;24(5):826-32.
    PMID: 21490111 DOI: 10.1177/1010539511404396
    BACKGROUND: The commencement of methadone maintenance therapy (MMT) in 2005 represents a quantum leap in the management of heroin dependence in Malaysia.
    OBJECTIVE: To examine the 2-year outcomes of this modality in the treatment of heroin dependence with respect to the quality of life (QOL), heroin abstinence, and rate of employment among heroin dependants attending the Tengku Ampuan Afzan Hospital (HTAA) MMT clinic.
    METHOD: This was an experimental study in which the second QOL assessment was conducted 2 years after treatment initiation.
    RESULTS: A total of 172 patients enrolled at the point of entry to the MMT program. The authors examined 107 patients who remained in the program 2 years later (62.6% retention rate). A paired t test demonstrated significant improvements in all 4 domains of QOL (physical, psychological, social relationships, and environment; P < .001). The most marked improvement was noted in the psychological domain.
    CONCLUSION: The MMT program at HTAA is effective in improving the QOL among heroin dependants.
    Study site: MMT clinic, Tengku Ampuan Afzan Hospital (HTAA), Kuantan, Pahang, Malaysia
    Matched MeSH terms: Methadone/therapeutic use*
  17. 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: Methadone
  18. Nik Jaafar NR, Mislan N, Abdul Aziz S, Baharudin A, Ibrahim N, Midin M, et al.
    J Sex Med, 2013 Aug;10(8):2069-76.
    PMID: 23445463 DOI: 10.1111/jsm.12105
    INTRODUCTION: While methadone effectively treats opiate dependence, the side effect of erectile dysfunction (ED) may interfere with treatment adherence and benefits.
    AIM:To determine the rate of ED and the associated factors which predict ED in male patients on methadone maintenance therapy (MMT) in a Malaysian population.
    MAIN OUTCOME MEASURES: The main outcome measures were the International Index of Erectile Function-15 (IIEF-15) and the Beck Depression Inventory (BDI).
    METHODS: A total of 108 participants diagnosed with heroin dependence were assessed. We used the Structured Clinical Interview for DSM-IV Axis-I Disorders (SCID-I) on subjects who received MMT, and they were assessed using the IIEF-15, the BDI, and measures of other clinical and sociodemographic variables.
    RESULTS: The rate of ED among men on MMT was 68.5% (mild ED, 36.1%; mild to moderate ED, 22.2%; severe ED, 3.7%). The mean age of the participants was 43.45 years. Older age (P = 0.002), concurrent illicit heroin use (P = 0.024), and having an older partner (P = 0.039) were significantly associated with ED. Following multivariate analysis, it was found that older age was the only significant predictor of ED, with an adjusted odds ratio of 1.07 (95% CI = 1.02-1.16). Methadone dose and duration of methadone treatment were not significantly associated with ED.
    CONCLUSION: ED was highly prevalent among male patients on MMT. This suggests that there is a need for routine assessment of sexual function in patients on methadone. Among the risk factors, age was the only factor that was significantly associated with ED. The current use of MMT in Malaysia in terms of dosage and duration did not pose a significant risk for ED.
    KEYWORDS: Erectile Dysfunction; Methadone Therapy; Opiate Dependence
    Study site: outpatient clinic for opiate substitution therapy, Hospital Kuala Lumpur (HKL), Malaysia
    Matched MeSH terms: Methadone/administration & dosage; Methadone/therapeutic use*
  19. Nik Ruzyanei, N.J., Noormazita, M., Azlin, B., Normala, I., Hazli, Z., Abdul Aziz, S., et al.
    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: Methadone
  20. 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: Methadone
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