Displaying publications 41 - 60 of 367 in total

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  1. Mat NH, Bakar SNS, Murugaiyah V, Chawarski MC, Hassan Z
    Behav Brain Res, 2023 Feb 15;439:114251.
    PMID: 36503042 DOI: 10.1016/j.bbr.2022.114251
    Mitragynine exerts its analgesic effect mainly via opioid receptors activation. Additionally, the effect may be mediated via mitragynine's anti-inflammatory property and non-opioid receptor pain pathways, namely through the TRPV1 receptor. No studies identify hitherto, hence, the current study aimed to investigate the mitragynine's analgesic effect via the anti-inflammatory property, non-opioid receptor (TRPV1) and the effective dose (ED) to alleviate pain. Male and female Sprague Dawley rats were pre-treated intraperitoneally with either mitragynine (1, 5, 10, 13, 15 or 30 mg/kg), vehicle, or indomethacin (1 mg/kg) 30 min before inducing inflammatory pain using acetic acid. The writhes and pain-related withdrawal behaviour occurrence were counted within a 1-h duration. Percentage of writhes inhibition, pain-related withdrawal behaviour aggregate, ED50 and ED95 were determined. The body temperature was recorded and TRPV1 expression in the rats' brains was measured. Mitragynine (except 1 mg/kg) significantly reduced the number of writhes compared with the vehicle administered group. Mitragynine (30 mg/kg) demonstrated 99.5% inhibition of writhing behaviour and low withdrawal behaviour score compared with vehicle and indomethacin and successfully blocked the hypothermia induced by acetic acid. The overall ED50 and ED95 values of mitragynine were 3.62 and 20.84 mg/kg, respectively. The percentage of writhing inhibition and withdrawal behaviour were similar in both genders. Mitragynine (15 and 30 mg/kg) significantly reduced the TRPV1 expression in the brain of the rats. Mitragynine alleviated pain-like behaviour and showed analgesic effects via anti-inflammatory and non-opioid receptor pathways. The findings also suggest that mitragynine might regulate some physiological functions of the rat.
    Matched MeSH terms: Analgesics/pharmacology
  2. Bazazi AR, Culbert GJ, Wegman MP, Heimer R, Kamarulzaman A, Altice FL
    BMC Infect Dis, 2022 Nov 11;22(1):837.
    PMID: 36368939 DOI: 10.1186/s12879-022-07804-6
    INTRODUCTION: Mortality is elevated after prison release and may be higher in people with HIV and opioid use disorder (OUD). Maintenance with opioid agonist therapy (OAT) like methadone or buprenorphine reduces mortality in people with OUD and may confer benefits to people with OUD and HIV leaving prison. Survival benefits of OAT, however, have not been evaluated prospectively in people with OUD and HIV leaving prison.

    METHODS: This study prospectively evaluated mortality after prison release and whether methadone initiated before release increased survival after release in a sample of men with HIV and OUD (n = 291). We linked national death records to data from a controlled trial of prerelease methadone initiation conducted from 2010 to 2014 with men with HIV and OUD imprisoned in Malaysia. Vital statistics were collected through 2015. Allocation to prerelease methadone was by randomization (n = 64) and participant choice (n = 246). Cox proportional hazards models were used to estimate treatment effects of prerelease methadone on postrelease survival.

    RESULTS: Overall, 62 deaths occurred over 872.5 person-years (PY) of postrelease follow-up, a crude mortality rate of 71.1 deaths per 1000 PY (95% confidence interval [CI] 54.5-89.4). Most deaths were of infectious etiology, mostly related to HIV. In a modified intention-to-treat analysis, the impact of prerelease methadone on postrelease mortality was consistent with a null effect in unadjusted (hazard ratio [HR] 1.3, 95% CI 0.6-3.1) and covariate-adjusted (HR 1.2, 95% CI 0.5-2.8) models. Predictors of mortality were educational level (HR 1.4, 95% CI 1.0-1.8), pre-incarceration alcohol use (HR 2.0, 95% CI 1.1-3.9), and lower CD4+ T-lymphocyte count (HR 0.8 per 100-cell/mL increase, 95% CI 0.7-1.0).

    CONCLUSIONS: Postrelease mortality in this sample of men with HIV and OUD was extraordinarily high, and most deaths were likely of infectious etiology. No effect of prerelease methadone on postrelease mortality was observed, which may be due to study limitations or an epidemiological context in which inadequately treated HIV, and not inadequately treated OUD, is the main cause of death after prison release.

    TRIAL REGISTRATION: NCT02396979. Retrospectively registered 24/03/2015.

    Matched MeSH terms: Analgesics, Opioid/therapeutic use
  3. Khalid K, Ooi YT, Abdul Rashid Q, Mohammad Yusoff MZA, Jamaluddin R
    East Asian Arch Psychiatry, 2022 Sep;32(3):47-50.
    PMID: 36172721 DOI: 10.12809/eaap2214
    OBJECTIVES: To determine the prevalence of continued illicit drug use among people enrolled in methadone maintenance treatment (MMT), the association between hepatitis C status and methadone dosage, and the predictors for illicit drug abstinence during MMT.

    METHODS: Clinical records of active opioid dependents who underwent MMT between 1 January 2007 and 31 March 2021 in Hospital Tuanku Fauziah, Perlis, Malaysia were retrospectively reviewed. Data collected included baseline demographics, history of illicit drug use, temporal trend in methadone dosage modulation, and co-use of illicit drugs during the MMT.

    RESULTS: A total of 87 patients (mean age, 43.9 ± 8.33 years) were included. Their mean duration of involvement in MMT was 7.8 ± 3.69 years. The most commonly used drug was heroin (88.5%), followed by kratom (51.7%). Between 2019 and 2021, 61 (70.1%) patients had ceased abusing opioid, but 51 (58.6%) patients continued using any of the illicit drugs. Methamphetamine and amphetamine co-use was most common (n = 12, 37.5%). Hepatitis C status was not associated with the current methadone dose (U = 539.5, p = 0.186) or the highest dose required (t = -0.291, df = 74, p = 0.772). No predictor for illicit drug abstinence during MMT was identified. Methadone dose positively correlated with frequency of defaulting treatments (r = 0.22, p = 0.042).

    CONCLUSION: Among our patients, MMT for opioid dependents cannot sufficiently curb illicit drug use, and there is a shift toward stimulants abuse.

    Matched MeSH terms: Analgesics, Opioid/therapeutic use
  4. Lim RBL, Yeat CL, Vighneshvaran R, Kasinathan N, Ahmad Subki SZ, Singh AHS, et al.
    J Pain Symptom Manage, 2023 Sep;66(3):221-229.
    PMID: 37295564 DOI: 10.1016/j.jpainsymman.2023.05.017
    INTRODUCTION AND OBJECTIVES: This national audit involving Ministry of Health (MOH) Hospitals aimed to map out the levels of development of palliative care services and essential palliative medication availability in Malaysia.

    MATERIALS AND METHODS: An online survey coupled with manual follow up was conducted throughout all MOH hospitals in Malaysia. Data collected described elements of the palliative care service(PCS) based on the WHO public health model. Data was computed using a novel matrix to determine three key indices which were the 1) palliative care development score (PCDS), 2)essential medications availability score (EMAS) and 3) opioid availability score (OAS). These scores then allowed mapping of PCS according to scores of 1-4 (1=least developed, 4=most developed).

    FINDINGS: Out of all 140 MOH hospitals 88.6% (124) completed the PCDS survey, 120(85.7%) for the EMAS survey and 140 (100%) for the OAS survey. A total of 32(25.8%) hospitals had formal PCS with 8(25%) having resident palliative physicians (RPP), 8(25%) visiting palliative physicians(VPP) and 16(50%) no palliative physician (NPP). Out of these services, 17 (53%) had dedicated palliative care beds. In the PCDS survey, hospitals with PCS had significantly higher mean PCDS of 2.59 compared to 1.02 for non-PCS hospitals (P<0.001). The EMAS survey showed 109(90.8%) hospitals had EMAS of four and the OAS survey showed that 135(96.4%) hospitals had oral morphine available.

    CONCLUSION: This study shows that palliative care service development in MOH hospitals is still very limited however, majority of MOH hospitals in Malaysia have all the essential medications and oral morphine available.

    Matched MeSH terms: Analgesics, Opioid/therapeutic use
  5. Lee MT, Mackie K, Chiou LC
    Br J Pharmacol, 2023 Apr;180(7):894-909.
    PMID: 34877650 DOI: 10.1111/bph.15771
    The use of opioids in pain management is hampered by the emergence of analgesic tolerance, which leads to increased dosing and side effects, both of which have contributed to the opioid epidemic. One promising potential approach to limit opioid analgesic tolerance is activating the endocannabinoid system in the CNS, via activation of CB1 receptors in the descending pain inhibitory pathway. In this review, we first discuss preclinical and clinical evidence revealing the potential of pharmacological activation of CB1 receptors in modulating opioid tolerance, including activation by phytocannabinoids, synthetic CB1 receptor agonists, endocannabinoid degradation enzyme inhibitors, and recently discovered positive allosteric modulators of CB1 receptors. On the other hand, as non-pharmacological pain relief is advocated by the US-NIH to combat the opioid epidemic, we also discuss contributions of peripheral neuromodulation, involving the electrostimulation of peripheral nerves, in addressing chronic pain and opioid tolerance. The involvement of supraspinal endocannabinoid systems in peripheral neuromodulation-induced analgesia is also discussed. LINKED ARTICLES: This article is part of a themed issue on Advances in Opioid Pharmacology at the Time of the Opioid Epidemic. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v180.7/issuetoc.
    Matched MeSH terms: Analgesics/pharmacology
  6. Zahari Z, Ismail R
    Drug Metab. Pharmacokinet., 2014;29(1):29-43.
    PMID: 23759977
    CYP2D6 polymorphisms show large geographical and interethnic differences. Variations in CYP2D6 activity may impact upon a patient's pain level and may contribute to interindividual variations in the response to opioids. This paper reviews the evidence on how CYP2D6 polymorphisms might influence pain sensitivity and clinical response to codeine and tramadol. For example, it is shown that (1) CYP2D6 poor metabolizers (PMs) may be less efficient at synthesizing endogenous morphine compared with other metabolizers. In contrast, ultra-rapid metabolizers (UMs) may be more efficient than other metabolizers at synthesizing endogenous morphine, thus strengthening endogenous pain modulation. Additionally, for codeine and tramadol that are bioactivated by CYP2D6, PMs may undergo no metabolite formation, leading to inadequate analgesia. Conversely, UMs may experience quicker analgesic effects but be prone to higher mu-opioid-related toxicity. The literature suggested the potential usefulness of the determination of CYP2D6 polymorphisms in elucidating serious adverse events and in preventing subsequent inappropriate selection or doses of codeine and tramadol. Notably, even though many studies investigated a possible role of the CYP2D6 polymorphisms on pain sensitivity, pharmacokinetics and pharmacodynamics of these drugs, the results of analgesia and adverse effects are conflicting. More studies are required to demonstrate genetically determined unresponsiveness and risk of developing serious adverse events for patients with pain and these should involve larger numbers of patients in different population types.
    Matched MeSH terms: Analgesics, Opioid/adverse effects; Analgesics, Opioid/pharmacokinetics; Analgesics, Opioid/therapeutic use*
  7. Zyoud SH, Awang R, Sulaiman SA
    Pharmacoepidemiol Drug Saf, 2012 Feb;21(2):207-13.
    PMID: 21812068 DOI: 10.1002/pds.2218
    The present study examines the relationship between the dose of acetaminophen reported to have been ingested by patients and the occurrence of serum acetaminophen levels above the 'possible toxicity' line in patients presenting at the hospital after acetaminophen overdose. The prognostic value of patient-reported dosage cut-offs of 8, 10 and 12 g was determined.
    Matched MeSH terms: Analgesics, Non-Narcotic/administration & dosage; Analgesics, Non-Narcotic/pharmacokinetics; Analgesics, Non-Narcotic/poisoning*
  8. Devaraj S, Esfahani AS, Ismail S, Ramanathan S, Yam MF
    Molecules, 2010 Apr;15(4):2925-34.
    PMID: 20428088 DOI: 10.3390/molecules15042925
    Ethanolic extract of Curcuma xanthorrhiza was used to evaluate the analgesic and toxicity effects in vivo. The extract was standardized using GC-MS, which showed that 1 mg of Curcuma xanthorrhiza ethanolic extract contains 0.1238 mg of xanthorrhizol. The analgesic activity was studied in rats using three different models, namely the hot plate test, tail flick test and formalin-induced pain test. The acute oral toxicity was examined by the oral administration of standardized Curcuma xanthorrhiza ethanolic extract in mice at doses ranging from 300-5,000 mg/kg and observation for 14 days. Standardized Curcuma xanthorrhiza ethanolic extract did not show significant analgesic effect in the hot plate and tail flick tests. However, in the formalin-induced pain test, Curcuma xanthorrhiza ethanolic extract significantly (P < 0.05) suppressed the paw licking time of rats in both early and late phases at doses 200 and 400 mg/kg of the extract, respectively. In the acute oral toxicity study, Curcuma xanthorrhiza ethanolic extract did not show any toxic effects in mice at 5 g/kg. These experimental results suggest that the standardized Curcuma xanthorrhiza ethanolic extract showed peripheral and central antinociceptive activity associated with neurogenic pain as well as a relative absence of toxic effects which could compromise the medicinal use of this plant in folk medicine.
    Matched MeSH terms: Analgesics/administration & dosage*; Analgesics/toxicity; Analgesics/chemistry
  9. Ong HM, Mohamad AS, Makhtar N', Khalid MH, Khalid S, Perimal EK, et al.
    J Ethnopharmacol, 2011 Jan 7;133(1):227-33.
    PMID: 20920570 DOI: 10.1016/j.jep.2010.09.030
    Acmella uliginosa (Sw.) Cass. is a medicinal herbaceous plant that is commonly used by the Malay community in Malaysia to relieve pain often associated with mouth ulcers, toothache, sore throat, and stomach ache.
    Matched MeSH terms: Analgesics/pharmacology*; Analgesics/toxicity; Analgesics/chemistry
  10. Sulaiman MR, Zakaria ZA, Abdul Rahman A, Mohamad AS, Desa MN, Stanslas J, et al.
    Biol Res Nurs, 2010 Jan;11(3):293-301.
    PMID: 19689990 DOI: 10.1177/1099800409343311
    The current study was performed to evaluate the antinociceptive and antiedematogenic properties of andrographolide isolated from the leaves of Andrographis paniculata using two animal models. Antinociceptive activity was evaluated using the acetic acid- induced writhing and the hot-plate tests, while antiedematogenic activity was measured using the carrageenan-induced paw edema test. Subcutaneous (s.c.) administration of andrographolide (10, 25, and 50 mg/kg) did not affect the motor coordination of the experimental animals but produced significant (p < .05) antinociceptive activity when assessed using both tests. However, 2 mg/kg naloxone failed to affect the 25 mg/kg andrographolide activity in both tests, indicating that the activity was modulated via nonopioid mechanisms. Furthermore, andrographolide showed significant (p < .05) antiedematogenic activity. In conclusion, the results obtained suggest that andrographolide has antinociceptive and antiedematogenic activities; it may be useful for treating pain and inflammation once human studies are conducted.
    Matched MeSH terms: Analgesics/isolation & purification; Analgesics/pharmacology; Analgesics/therapeutic use*
  11. Anbu JS, Jayaraj P, Varatharajan R, Thomas J, Jisha J, Muthappan M
    Afr J Tradit Complement Altern Med, 2009 Jul 03;6(4):529-33.
    PMID: 20606773
    The ethanol and water extracts of Sansevieria trifasciata leaves showed dose-dependent and significant (P < 0.05) increase in pain threshold in tail-immersion test. Moreover, both the extracts (100 - 200 mg/kg) exhibited a dose-dependent inhibition of writhing and also showed a significant (P < 0.001) inhibition of both phases of the formalin pain test. The ethanol extract (200 mg/kg) significantly (P < 0.01) reversed yeast-induced fever. Preliminary phytochemical screening of the extracts showed the presence of alkaloids, flavonoids, saponins, glycosides, terpenoids, tannins, proteins and carbohydrates.
    Matched MeSH terms: Analgesics/pharmacology*; Analgesics, Non-Narcotic/pharmacology*
  12. Gan SH, Ismail R
    J Chromatogr B Biomed Sci Appl, 2001 Aug 15;759(2):325-35.
    PMID: 11499486
    An HPLC system using solid-phase extraction and HPLC with UV detection has been validated in order to determine tramadol and o-desmethyltramadol (M1) concentrations in human plasma. The method developed was selective and linear for concentrations ranging from 50 to 3,500 ng/ml (tramadol) and 50 to 500 ng/ml (M1) with mean recoveries of 94.36 +/- 12.53% and 93.52 +/- 7.88%, respectively. Limit of quantitation (LOQ) was 50 ng/ml. For tramadol, the intra-day accuracy ranged from 95.48 to 114.64% and the inter-day accuracy, 97.21 to 103.24%. Good precision (0.51 and 18.32% for intra- and inter-day, respectively) was obtained at LOQ. The system has been applied to determine tramadol concentrations in human plasma samples for a pharmacokinetic study.
    Matched MeSH terms: Analgesics, Opioid/blood*; Analgesics, Opioid/pharmacokinetics; Analgesics, Opioid/therapeutic use
  13. Chin KY, Mark-Lee WF
    Curr Drug Targets, 2018;19(12):1359-1365.
    PMID: 28950813 DOI: 10.2174/1389450118666170925154025
    Mitragyna speciosa is a tropical plant with narcotic effects. The antinociceptive effects of its crude extracts, bioactive compounds and structurally modified derivatives have been examined in rodent models. This review aims to summarize the evidence on the antinociceptive effects of M. speciosa and its derivatives and explore whether they can offer an alternative to morphine in pain management. Methanolic and alkaloid extracts of M. speciosa were shown to attenuate the nociceptive response in rodents. Mitragynine and 7-hydroxymitragynine offered better antinociceptive effects than crude extracts. Structurally modified derivatives of 7-hydroxymitragynine, such as MGM-9, MGM- 15, MGM-16, demonstrated superior antinociceptive effects compared to morphine. M. speciosa and its derivatives mainly act on the opioid receptor, but receptor subtypes specificity differs between each compound. The tolerance and adverse side effects of M. speciosa and its derivatives are similar with morphine. The affinity of MGM-9 on kappa-opioid receptor could potentially limit the effects of drug dependence. In conclusion, M speciosa derivatives can offer alternatives to morphine in controlling chronic pain. Structural modification of mitragynine and 7-hydroxymitragynine can generate compounds with higher potency and lesser side-effects. Human clinical trials are required to validate the use of these compounds in clinical setting.
    Matched MeSH terms: Analgesics/adverse effects; Analgesics/therapeutic use*; Analgesics/chemistry
  14. Chongmelaxme B, Sruamsiri R, Dilokthornsakul P, Dhippayom T, Kongkaew C, Saokaew S, et al.
    Complement Ther Med, 2017 Dec;35:70-77.
    PMID: 29154071 DOI: 10.1016/j.ctim.2017.09.009
    Zingiber cassumunar Roxb. known locally as "Plai" in Thai, has been used for treating bruise, sprain and musculoskeletal pain. Several pre-clinical studies demonstrated the anti-inflammatory effect of Plai. However, current evidence of clinical effects of Plai is still unclear. This study aimed to determine the clinical efficacy and safety of Plai among all identified indications. Of the 808 articles identified by a systematic review, six studies were included. Four studies were randomized controlled trials, while two studies were quasi-experimental studies involving 178 patients in intervention group and 177 patients in control group. Duration of treatment ranged from 7days to 2 months. Our findings showed that 14% Plai cream had a strong trend of benefits in pain reduction for muscle pain and ankle sprain. However, evidence supporting the effects of Plai on acne vulgaris treatment and anti-histamine effect are still unclear.
    Matched MeSH terms: Analgesics/administration & dosage; Analgesics/pharmacology; Analgesics/therapeutic use*
  15. Madden LM, Farnum SO, Bromberg DJ, Barry DT, Mazhnaya A, Fomenko T, et al.
    Addict Sci Clin Pract, 2022 Nov 26;17(1):65.
    PMID: 36435811 DOI: 10.1186/s13722-022-00343-0
    BACKGROUND: Efficient and linguistically appropriate instruments are needed to assess response to addiction treatment, including severity of addiction/mental health status. This is critical for Russian-speaking persons in Eastern Europe and Central Asia (EECA) where Medications for Opioid Use Disorder (MOUD) remain underscaled to address expanding and intertwined opioid, HIV, HCV and tuberculosis epidemics. We developed and conducted a pilot validation of a Russian version of the 24-item Behavior and Symptom Identification Scale (BASIS-24), an addiction/mental health severity instrument with six subscales, previously validated in English.

    METHODS: Using the Mapi approach, we reviewed, translated, and back-translated the content to Russian, pilot-tested the Russian-version (BASIS-24-R) among new MOUD patients in Ukraine (N = 283). For a subset of patients (n = 44), test-rest was performed 48 h after admission to reassess reliability of BASIS-24-R. Exploratory principal component analysis (PCA) assessed underlying structure of BASIS-24-R.

    RESULTS: Cronbach alpha coefficients for overall BASIS-24-R and 5 subscales exceeded 0.65; coefficient for Relationship subscale was 0.42. The Pearson correlation coefficients for overall score and all subscales on the BASIS-24-R exceeded 0.8. Each item loaded onto factors that corresponded with English BASIS-24 subscales ≥ 0.4 in PCA.

    CONCLUSION: Initial version of BASIS-24-R appears statistically valid in Russian. Use of the BASIS-24-R has potential to guide MOUD treatment delivery in the EECA region and help to align addiction treatment with HIV prevention goals in a region where HIV is concentrated in people who inject opioids and where healthcare professionals have not traditionally perceived MOUD as effective treatment, particularly for those with mental health co-morbidities.

    Matched MeSH terms: Analgesics, Opioid
  16. Saad LB, Hwi KK, Quah T
    PMID: 25371587
    BACKGROUND: There are severe adverse effects of analgesic drugs on human body. Extraction of analgesic drugs from natural products has therefore become the prime objective of the study. In this study, we aimed to evaluate the antinociceptive activity of the pomegranate fruit.

    MATERIALS AND METHODS: Antinociceptive activity of ethanol pomegranate extract was examined using three models of pain: the writhing test, the hot tail flick test and the plantar test. The ethanolic extract of pomegranate was administered by oral gavages in doses of (100,150 and 200mg/kg, p.o (orally)), for all the tests and compared with aspirin (100mg/kg, p.o.) which was considered as the standard drug. Phytochemical screening and HPLC analysis of the plant species was carried out.

    RESULTS: In the writhing test, the index of pain inhibition (IPI) was 37% for ethanolic extract of pomegranate (200mg/kg, p.o.), and 59% for aspirin. In the hot tail flick test, the ethanolic extract of pomegranate (200mg/kg, p.o.), has shown significant analgesia reaching its peak at 60 min maximum possible analgesia (MPA), was 24.1% as compared with aspirin 37.5%. Hyperalgesia was successfully induced by the plantar test and the ethanol extract of pomegranate (100,150,200mg/kg, p.o.), reduced the hyperalgesia in a dose dependent manner comparable to aspirin at (100mg/kg, p.o.). HPLC analysis revealed the presence of gallic acid, ellagic acid and Punicalagins A&B.

    CONCLUSION: The results demonstrated that ethanol pomegranate extract has an antinociceptive effect that may be related to the presence of identified phytochemicals.

    Matched MeSH terms: Analgesics/administration & dosage*; Analgesics/analysis
  17. Hadi MA, Alldred DP, Briggs M, Munyombwe T, Closs SJ
    Clin J Pain, 2014 Nov;30(11):1006-14.
    PMID: 24480911 DOI: 10.1097/AJP.0000000000000063
    OBJECTIVE: To evaluate the effectiveness of pharmacist-led medication review in chronic pain management.

    MATERIALS AND METHODS: Six electronic databases (Medline, Embase, PsycInfo, CINHAL, CENTRAL, International Pharmaceutical Abstracts) reference lists of retrieved articles and relevant websites were searched for randomized controlled trials published in the English language involving adults with chronic pain. Studies were included if one of the intervention arms had received pharmacist-led medication review independently or as part of a multidisciplinary intervention. Risk of bias was assessed for all the included studies.

    RESULTS: The search strategy yielded 583 unique articles including 5 randomized controlled trials. Compared with control, meta-analysis showed that participants in the intervention group had: a 0.8-point reduction in pain intensity on a 0 to 10 numerical rating scale at 3 months [95% confidence interval (CI), -1.28 to -0.36] and a 0.7-point reduction (95% CI, -1.19 to -0.20) at 6 months; a 4.84 point (95% CI, -7.38 to -2.29) and -3.82 point (95% CI, -6.49 to -1.14) improvement in physical functioning on a 0- to 68-point function subscale of Western Ontario and McMaster Universities Osteoarthritis Index at 3 and 6 months, respectively; and a significant improvement in patient satisfaction equivalent to a "small to moderate effect."

    DISCUSSION: Pharmacist-led medication review reduces pain intensity and improves physical functioning and patient satisfaction. However, the clinical significance of these findings remain uncertain due to small effect size and nature of reported data within clinical trials that limits recommendation of wider clinical role of pharmacist in chronic pain management.

    Matched MeSH terms: Analgesics/adverse effects; Analgesics/therapeutic use
  18. Mustaffa F, Indurkar J, Shah M, Ismail S, Mansor SM
    Nat Prod Res, 2013;27(10):888-95.
    PMID: 22574706 DOI: 10.1080/14786419.2012.678347
    This review describes the morphological, phytochemical and pharmacological properties of Cinnamomum iners Reinw. ex Blume (Lauraceae). The plant grows wild in the lowland of Malaysia, India, Myanmar, Indonesia, Thailand, Singapore, Brunei and Philippines. This plant is commonly used for its carminative, analgesic and antipyretic properties, for postpartum treatment, rheumatism and digestive ailments. This article enumerates an overview of phytochemical and pharmacological aspects that is useful to researchers for further exploration necessary for the development of this potential herb.
    Matched MeSH terms: Analgesics/therapeutic use; Analgesics/chemistry
  19. Gan SH, Ismail R, Wan Adnan WA, Zulmi W
    Mol Diagn Ther, 2007;11(3):171-81.
    PMID: 17570739
    Tramadol is metabolized by the highly polymorphic enzyme cytochrome P450 (CYP)2D6. Patients with different CYP2D6 genotypes may respond differently to tramadol in terms of pain relief and adverse events. In this study, we compare the pharmacokinetics and effects of tramadol in Malaysian patients with different genotypes to establish the pharmacokinetic-pharmacodynamic relationship of tramadol.
    Matched MeSH terms: Analgesics, Opioid/pharmacokinetics; Analgesics, Opioid/pharmacology*
  20. Gan SH, Ismail R, Wan Adnan WA, Zulmi W, Jelliffe RW
    J Clin Pharm Ther, 2004 Oct;29(5):455-63.
    PMID: 15482390
    Although the kinetic behaviour of tramadol has been described, the present study is the first to our knowledge, to report specifically on the population pharmacokinetic modelling of tramadol hydrochloride.
    Matched MeSH terms: Analgesics, Opioid/administration & dosage; Analgesics, Opioid/pharmacokinetics*
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