Assessment Of Drug Use Research Articles

A protocol for identifying the needs related to drug use, health and social (re)integration of people living in prison within five European countries

BackgroundCompared to the general population, people living in prison are at an increased risk to experience negative (mental) health outcomes. Moreover, delinquency and drug use have many risk factors in common. A need exists for increasing the knowledge about health needs, drug use patterns and the coverage of drug-related interventions in prison within Europe. The current protocol describes the design of a study about wellbeing, drug use and related care in prison.Methods/designA multicentre mixed method design is implemented in five European countries (Belgium, Cyprus, Greece, Lithuania and Luxembourg). Qualitative and quantitative data collection tools are combined in order to generate complementary and comprehensive results. First, a cross-sectional survey among people living in prison is conducted. This survey is based on a model questionnaire, the European Questionnaire on Drug use among people living in Prison, developed by the European Monitoring Centre for Drug and Drugs Addiction. Second, people living in prison and people who have been recently released from prison are involved in qualitative semi-structured face-to-face interviews. The main topics of interest are the use of drugs and other health related topics such as loneliness, anxiety, depression, infectious diseases, suicide and treatment. Third, data regarding health and social reintegration measures in prison is collected through a quantitative survey addressed to the prison authorities.DiscussionThis study protocol presentes a European study which aims to assess drug use among people living in prison and recently released people who use drugs as well as the existing care services in prisons. Hereby, factors related to the prison environment and their needs, both inside and outside prison are taken into account. Importantly, this study protocol describes a methodology which is developed to be executed in different prison settings within different countries simultaneously. Accordingly, for each country the protocol is adjustable to specific national legal requirements, regional differences and distinct local regulations of prison administrations. However, extensive modularity inevitably comes with significant limitations of comparability and generalizability of the results.

The influence of cosmetic treatments in the uptake of in vitro cocaine contamination in hair.

Hair analysis is a powerful tool to assess drug use, yet the challenge of external contamination complicates its interpretation. Understanding the influence of cosmetic hair treatments is pivotal as their presence may affect this phenomenon. This study investigated the effects of four cosmetic treatments (bleach, henna, gel, and dry shampoo) on the external in vitro contamination of cocaine and its primary metabolite, benzoylecgonine (BE). Hair samples were divided into four groups: A-hair treated with cosmetics then contaminated; B-hair contaminated then subjected to cosmetic treatment; and C-hair solely contaminated (control group). Negative hair samples (n = 24) were immersed in a cocaine and BE aqueous solution of 1μg/mL for 24 h. All hair samples were analyzed by a LC-MSMS procedure successfully validated according to ANSI/ASB Standard 036 guidelines (limit of quantification at 10pg/mg). Henna in Group A (n = 13) resulted in the most substantial reduction for cocaine (92%), while bleach in Group B (n = 15) showed an 80% decrease. For BE, Group A henna (n = 13) exhibited a 50% reduction, and Group B bleach (n = 15) demonstrated a 71% decrease, all compared to Group C (n = 24). The study found no significant differences concerning hair color (black (n = 3), brown (n = 10), red (n = 5) and blond (n = 6)) or shape (straight (n = 6), wavy (n = 16), curly (n = 1), and coily (n = 1)). All analysis were performed in triplicate with variations below 20%. These findings emphasize that cosmetic treatments do affect cocaine/BE concentrations in hair when exposed to external contamination, highlighting the importance of considering an individual's cosmetic history prior to interpretation.

Prospective, multi-country, observational study of patients with endogenous Cushing's syndrome exposed to Ketoconazole (using the existing European Registry on Cushing's Syndrome (ERCUSYN)), to assess drug use, safety and effectiveness

Prospective, multi-country, observational study of patients with endogenous Cushing's syndrome exposed to Ketoconazole (using the existing European Registry on Cushing's Syndrome (ERCUSYN)), to assess drug use, safety and effectiveness

Impurities in over-the-counter pseudoephedrine leading to methcathinone detection in urine

Methcathinone, a psychoactive substance with stimulant properties, has raised concerns in recent years due to its presence in urine screenings, even among individuals with no history of drug abuse. To prevent misjudgment, this work aims to explore the source of methcathinone in urine. A total of 58 urine samples tested positive for methcathinone in the National Taiwan University Hospital cohort, with 27 linked to illicit drug use and 31 from individuals with no drug use history. Co-occurrence analysis revealed a strong association between methcathinone and over-the-counter cold medications containing pseudoephedrine or ephedrine. In an in vivo experiment, participants who consumed pseudoephedrine-containing drugs showed the presence of methcathinone in their urine, suggesting a connection between these substances. Additionally, tests on pharmaceutical products containing pseudoephedrine detected small amounts of methcathinone as impurities. The findings suggest that the presence of methcathinone in nonillicit drug users may be attributed to impurities in over-the-counter pseudoephedrine-containing medications. This raises concerns about potential misinterpretations of drug screening results and underscores the need for more comprehensive criteria for assessing drug use. This study contributes to our understanding of the origin of methcathinone in urine, which has implications for legal justice and drug screening practices.

Evaluation of Drug Use in Three Secondary Health Facilities in Liberia Using the World Health Organization Indicators

Background: Effective and quality healthcare is achieved through rational drug use. The consequences of irrational drug use manifest as drug related problems like unnecessary drug prescription, ineffective therapy, inappropriate dose and adverse drug reactions. Objectives: To evaluate drug use and drug related problems in three secondary health facilities in Liberia. Methods: A retrospective analysis of 1200 prescriptions was conducted in the outpatient section of Liberia Government Hospital (LGH), Redemption Hospital (RH) and James Davis Junior Hospital (JDJH) to assess drug use with the WHO drug use indicators followed by assessment of drug-related problems (DRP) using the DRP-Registration Form 8.0. A prospective cross-sectional study was then conducted to evaluate consultation and dispensing time, and the availability of essential drugs list. Data were analysed by one-way analysis of variance using Statistical Package for Social Sciences (SPSS) version 20.0. Results were expressed as mean ± SD and values were considered significant at P < 0.05. Results: The average numbers of medicines per prescription were 4.5 ±1.3, 3.6 ±1.1, and 3.7 ± 1.2 in LGH, RH and JDJH hospitals respectively (WHO value-1.6-1.8). The percentages of encounters with antibiotics were 77.5%, 74.3% and 82.5% respectively (WHO value - 20.0% - 26.8%). Observed DRPs were more in LGH for ‘no indication for drug use’ (6.50%) and ‘prescription of more drugs than clinically indicated’ (4.75%) while JDJH recorded more ‘inappropriate medication per established guidelines’ (4.00%) and ‘preventive/synergic drug not given for clinical indication’ (5.50%). Conclusion: Irrational use of drugs existed in all the three hospitals studied.

Development and Validation of a Questionnaire for Assessing Drug Use Motives in the General Population in South Korea.

Drug use is increasing in South Korea, necessitating evidence-based policy interventions. However, there is a dearth of reliable tools for identifying the personal and psychological factors that drive drug use among Korean adults. In this study, we developed and validated an instrument based on a motivational model to measure drug use motivation in the Korean context. A survey was administered online to 250 Korean adults aged 19-59. Of the initial 37 potential items evaluated, 23 were retained after exploratory factor analysis. Based on their relevance and factor loadings, the final scale consisted of 15 items distributed across five distinct factors: enhancement, coping, social, positive expectancy, and negative expectancy. Confirmatory factor analysis validated the strong fit of the five-factor model. Criterion-related validity was demonstrated by the significant correlations between the five factors and the selected criterion variables. This instrument can be used in research initiatives related to drug addiction and can provide basic data for policy interventions intended to curb drug addiction problems in South Korea. The novelty and broad applicability of this instrument make it invaluable for exploring the psychological underpinnings of drug use in South Korea.

Prevalence, characteristics, and associated risk factors of drug consumption and chemsex use among individuals attending an STI clinic (EpITs STUDY).

Sex-related drug consumption and its health-related consequences have gained relevance in the assessment of patients with sexually transmitted infections (STIs), which pose a significant challenge to public health. We aim to assess the prevalence and characteristics of drug consumption and chemsex practices, describe the associated risk factors among general individuals attending an STI clinic, and evaluate the psychological impact associated with these behaviors. We conducted an online anonymous survey offered to patients with a diagnosis of STI in a tertiary hospital in Spain. Data included sociodemographic characteristics, sexual preferences and behavior, and assessment of drug use, chemsex, and psychological and mental health symptoms. Data from 145 subjects was collected, with a higher proportion of cis-gender men (71%), and a median age of 32 years. 64 participants (44%) reported drug use in the last year, with an observed 33.8% prevalence of chemsex consumption. Drug use and chemsex were more frequent among cis-gender men, Men who have Sex with Men (MSM), people living with HIV (PLHIV), and those reporting previous group sex. Poppers and cannabis were the most frequently reported drugs, with a prevalence close to 20% for cocaine, mephedrone, extasis, and GHB. Consequences related to drug use included unpleasant physical sensations, sexual dysfunction, and impaired sexual experience after reduction or drug discontinuation. The prevalence of drug use and chemsex practices are high among patients evaluated for STIs, especially between men, MSM, and subjects practicing group sex. The study highlights the urgent need for targeted interventions on prevention and reduction of their impact on health and social well-being.

Drug use Pattern with Standard Indicators in Chattogram Medical College Hospital in Bangladesh

Irrational prescription being a global problem leading to ineffective, unsafe treatment. This study was conducted between November 10, 2019 to January 20, 2020 to assess drug use pattern using WHO/INRUD core prescribing indicators at Chattogram Medical College Hospital (CMCH). Total 500 patients were selected randomly. The results showed average number of drugs per encounter is 4.41 (optimal range = 1.6–1.8), generic drug prescription was 1.54% (optimal value = 100%), encounters with an antibiotic prescribed were 32.6% (optimal range =20.0–26.8%), encounters with an injection prescribed were 24.8% (optimal range =13.4–24.1%), drugs prescribed from EDL were 50.43% (optimal value = 100%) and drugs prescribed from the WHO EDL were 56.96% (optimal value = 100%). Average consultation time was 3.1 min (optimal value ≥10 min), average dispensing time was 35 s (optimal value ≥90 s) and the patients’ knowledge of correct dosage was 62.1% (optimal value =100%. The hospital had no copy of EDL and key drugs available in the stock were 82% (optimal value =100%). The concept of generic prescribing was negligible. There was reduced prescription of drugs from the National List of Essential Medicines, the prescription of antibiotics and injections was slightly higher than normal. Shorter consultation and dispensing time may lead to inadequate information about the medication being given to patients and patients had little chance to obtain information about their treatment. This study necessitates we are in need of strict scrutiny on the prescribing method of our country. So, we can achieve the goal of rational use of drug.

Psychotropic Drugs Used in Psychiatry Outpatient Department: A Cross-Sectional Drug Utilization Research

Mental and behavioral disorders are common around the world. Pharmacotherapy, psychotherapy, and psychosocial rehabilitation are three treatment components for these disorders. Drug therapy is an essential part of the comprehensive treatment of these diseases. Their use pattern in psychiatric practice has changed dramatically in recent years. Mental disorders require long-term treatment. Therefore, it is crucial to study the prescribing practices of these groups of drugs. This study aims to assess drug use patterns using the WHO/INRUD Core Prescribing Indicators. Patients of both genders and ages with mental illness and prescription psychiatric drugs were evaluated from the outpatient department of the Psychiatry Unit (OPD). The prescription data were collected and analyzed using the indicators recommended by the WHO/INRUD. The data were analyzed using Microsoft Excel-2007. The percentage and average values of the variables were compared. A total of 655 prescriptions were analyzed. Male patients (54.96%) were more than women (45.04%). The morbidity profile included schizophrenia (37.86%), alcohol use disorder (18.78%), major depressive disorder (11.30%), anxiety disorder (10.23%), bipolar disorder (4.88%), and others (16.95%). The newer antipsychotic were the most commonly prescribed drugs (particularly olanzapine), along with a central anticholinergic (trihexyphenidyl) and a benzodiazepine (lorazepam). The percentage of drugs prescribed with generic names was 39.80%, and that of drugs prescribed by NLEM was 48.49%. The average number of drugs prescribed per prescription was 2.58. This study's Index of Rational Prescribing (IRDP) was 3.87, whereas the optimal score was 5. Prescriptions were complete, and principles of rational prescribing were followed, except for a low generic prescribing rate.

Associations between Drug Use and Sexual Risk Behaviours among Men Who Have Sex with Men in Japan: Results from the Cross-Sectional LASH Study

This study assessed drug use patterns among men who have sex with men (MSM) in Japan, and evaluated their potential associations with sexual risk behaviours. Between September and October 2016, study subjects were recruited through a cross-sectional survey (LASH: Love Life and Sexual Health) using a geosocial networking application for MSM. Of the participants, 25.4% (1756/6921) reported ever having used drugs, and 11.3% (780/6921) reported having done so in the past six months. Those who used drugs were more likely to have greater knowledge of HIV/sexually transmitted infections (STIs). Drug use in the past six months was independently associated with each of the following sexual risk behaviours in the same period: (i) six or more sexual partners (adjusted odds ratio [aOR] = 2.70, 95% confidence interval [CI]: 2.30–3.17); (ii) condomless anal intercourse (aOR = 2.88, 95% CI: 2.43–3.42); (iii) group sex (aOR = 2.60, 95% CI: 2.22–3.05); and (iv) sex work (aOR = 2.30, 95% CI: 1.67–3.16). These results suggest that MSM in Japan who use drugs are more likely to report sexual risk behaviours, while also having greater knowledge of HIV/STIs. Supporting MSM to minimise the harm from drug use may be helpful in reducing HIV transmission among this priority population.

Drugs Prescribing Trends in Three Polyclinics in Benghazi-Libya 2020

Background: There is an efforts made to improve drug prescribing practices in developing countries. The aim of present work was to comparing prescribing indicators, patient care, and missing information on prescriptions and identifying and assessing drug use patterns in three polyclinics in Benghazi city, Libya. Methods: In this descriptive cross section study a random sample of 1522 prescriptions were selected from three polyclinics include Ras-Ebida, Khalid Ibn-Elwalid and Al-Kish, over 4 months (July-October 2020). The data was collected through predesigned questionnaire. The prescriptions were analyzed for the following indicators: prescribing indicators, patient-care indicators and drug-use indicators. Results: A total of 1522 prescriptions (average = 507.3/clinic) were collected from the three polyclinics including 2329 prescribed (average = 1.4/prescription) items. Percentage of drugs prescribed with generic name was 0.0%, the percentage of prescriptions with antibiotics was 46.3%. The average of prescriptions of injections was 0.84. The average consultation time is 3.4 min and the average dispensing time was found to be 24 seconds. Major classes of drugs prescribed included analgesics, antibiotics, drugs used in medicine & derma clinics, ophthalmic drugs, minerals & vitamins, anti-inflammatory drugs, antihistaminic and antifungal drugs. The most prescribed analgesic was paracetamol (94.4%) and antibiotic was Augmentin (50.3%). In regarding prescribed drug in medicine clinics was found lisinopril (32.0%) and ophthalmic drug was cusicrom (36.8%). In addition, the majorities of prescribed vitamin were vitamin C (81.0%), for GIT drug was omeprazole (59.3%), and for dermatology was Fucidin (56.3%). While most prescribed anti-inflammatory was aspirin (52.4%), antihistaminic was loratidine (97.0%), for antifungal drug was flagyl (58.0%). Conclusion: Despite the efforts being made to improve prescribing habits and to rationalize the use of drugs, the obtained results confirm the deficiencies as reported earlier and suggest that methods of intervention should be initiated to improve prescribing trends in these polyclinics.

Pattern of Substance Abuse among Drug Users at Deaddiction Center of Amritsar, Punjab

Introduction: Drug abuse and drug abuse have become a global crisis. Illegal drug use, especially among young people, has become a global problem in both developed and developing countries. Aim: This study aims to determine the demographic characteristics and drug use patterns of drug addicts admitted to the deaddiction center in Amritsar, Punjab. Methods: A quantitative descriptive study using a cross-sectional research design was used to assess drug use patterns. There are a total of 250 patients admitted to the de-addiction wards or drug addicts reporting to the OPD base. Data were collected from patient records, interviews, and OPD. Results: In this study, 97.2% of drug users are male, 44% are between the ages of 21 and 30, 60% are married, and 68% live in rural areas. Substance use is equally common among those who are illiterate or primary school graduates (36%) and those who are high school or graduate graduates (36%). Research shows that heroin is the worst drug, coming in first, followed by alcohol (ranked 2nd) and tranquilizers (ranked 3rd). Conclusion: Many heroin addicts show a high degree of resistance. The majority of drug users (44%) are in the 21–30 age group. Increasing heroin addiction among the population is disastrous for the youth of Punjab.

Assessment of Drug Use in a Tertiary Hospital in Southeast Nigeria Based on Who Core Drug Use Indicators

Background: Irrational use of medicines is a global phenomenon and an issue of concern with so many undesirable consequences. The complex nature of the pharmaceutical care process is an indication for an essential tool that investigates drug use pattern in health facilities. The WHO released the core drug use indicators to address these issues. The study assessed drug use in a tertiary hospital in southeast Nigeria based on WHO core drug use indicators. Methods: A cross-sectional descriptive study design was used and the study was conducted from October 2021 to June 2022. Retrospectively, 300 prescriptions were selected and reviewed using systematic random sampling for a year from 2020 -2021 to investigate prescribing indicators. A total of 120 randomly selected patients and pharmacy personnel were observed and interviewed to investigate the patient-care and facility-specific indicators. The WHO/INRUD core drug use indicators were used to assess the patterns of drug use in comparison to the result gotten. Results: The average number of drugs per encounter was 2.76, the Percentage of drugs prescribed by generic names was 78.02%, the Percentage of antibiotics prescribed was 33.33%, and the Percentage of injections prescribed was 1.67%. Average consulting time in minutes was 17.5 minutes, the average dispensing time in seconds was 92.1 seconds, the Percentage of drugs actually dispensed was 76.97%, Percentage of adequately labeled was 100%, and the percentage of patients’ knowledge of correct dosage was 90%. The facility did not have an Essential Drug List but had all (100%) the key drugs listed by the WHO drug list. Conclusion: All of the prescribing indicators deviated from the WHO/INRUD recommended optimal values. Patient-care and facility-specific indicators deviated from the optimal values except that of the average consultation time, average dispensing time, percentage of drugs adequately labeled, and 100% availability of key drugs. Although a few of the WHO benchmark for rational drug use were met, the outcomes were not satisfactory and required interventions to improve rational drug use in the facility.

Assessing drug use relapse rate and its associated factors among Iranian users

ABSTRACT Background Relapse of drug use makes addiction more complex and difficult. This study aims to access the rate of drug use relapse and its determining factors among users referred to addiction treatment centers in Saveh, Iran. Methods This cross-sectional study was conducted among 403 users referred to Saveh addiction clinics, in Iran. Data were collected using a survey using stratified random sampling methods. Results A total of 374 men and 29 women participated in this study. The mean age of participants was 37.9 ± 10.1 years old but the mean age of first use was 17.6 ± 5.3 years old. More than half of the participants had elementary education. Most of those (74%) had a history of relapse. Escape from daily life challenges, place of residency, unemployment, and availability of drugs were dominant factors for relapse. The demographic factors of gender, and duration of the addiction and psychological factors of resilience, positive outcome expectancies, urges and temptations to use, self-efficacy, social support, and emotion-oriented coping were significant variables in predicting relapse (p < .05). Conclusion This study finding has significant implications for policy decision makers and educational interventions. Addressing determinants of drug use relapse is the primary strategy for preventing and reducing drug use.

Prescription of medicine for outpatients of gynaecology obstetric poly at a private hospital in Semarang, Indonesia

Background: Rational use of drugs means that patients get the right drug, in the right amount, at the right time, and at the lowest price. The World Health Organizaiton (WHO) issued a guide of the main indicators for the rationale assessment of drug use. These indicators are used as the first line in the assessment of drug use. Prescribing indicators are used to see patterns of drug use and can directly describe inappropriate drug use. This is known as the WHO criteria indicator. Objective: The purpose of the study was to determine drug prescribing for obsteric gynaecology (OB/GYN) poly outpatients at a private hospital in Semarang in accordance with hospital formulary and pharmacy availability. Methods: For this purpose, a descriptive and quantitative survey was conducted. The sample included 251 patients from January 2020. The data were collected retrospectively from the pharmacy's prescriptions. Results: The average number of drugs prescribed per visit was 2.45. Antibiotics were prescribed in 5.2% of encounters and injections in 0.2 %. 5.7% of drugs prescribed were generic, and 2.8% were from the hospital's formulary. The Pharmacy Installation had 79.6% drug availability. Mineral multivitamins (51.5%), hormonal drugs (20.9%), and antibiotics were the most commonly prescribed drugs (5.2%). Conclusion: On the basis of the finding of this study, this OB/GYN Hospital still needs to improve the appropriateness with WHO criteria so that the drugs prescribed were rational and can be available.

Ifenprodil for the treatment of methamphetamine use disorder: An exploratory, randomized, double-blind, placebo-controlled trial.

AimNo effective pharmacological interventions have been developed for patients with methamphetamine use disorder. Ifenprodil is a blocker of G protein‐activated inwardly rectifying potassium channels, which play a key role in the mechanism of action of addictive substances. We conducted a randomized, double‑blind, exploratory, dose‐ranging, placebo‐controlled trial to examine the clinical efficacy of ifenprodil for the treatment of methamphetamine use disorder.MethodsParticipants were assigned to three groups: placebo, 60 mg/d ifenprodil, or 120 mg/d ifenprodil. The drug administration period was 84 days. The primary outcome was the use or nonuse of methamphetamine during the drug administration period in the placebo group vs 120 mg/d ifenprodil group. We also assessed drug use status, relapse risk based on the Stimulant Relapse Risk Scale (SRRS), drug craving, and methamphetamine in urine as secondary outcomes. We further evaluated drug use status and SRRS subscale scores in patients who were not taking addiction medications during the study.ResultsIfenprodil did not affect the primary or secondary outcomes. However, the additional analyses showed that the number of days of methamphetamine use during the follow‐up period and scores on the emotionality problems subscale of the SRRS improved in the 120 mg/d ifenprodil group. The safety of ifenprodil was confirmed in patients with methamphetamine use disorder.ConclusionThe present findings did not confirm the efficacy of ifenprodil for methamphetamine use disorder treatment based on the primary or secondary outcomes, but we found evidence of its safety and efficacy in reducing emotionality problems.Clinical trial registrationThe study was registered at the University Hospital Medical Information Network Clinical Trial Registry (no. UMIN000030849) and Japan Registry of Clinical Trials (no. jRCTs031180080). The main registration site is jRCT (https://jrct.niph.go.jp/).

Assessment of drug use in primary health centers in Lagos State, Nigeria.

rational drug use prevents wastage of resources, loss of confidence in healthcare system and drug-related morbidity and mortality. This study aims to assess drug use in Primary Health Centers (PHCs) in Lagos State, Nigeria using the World Health Organization in collaboration with the International Network of Rational Use of Drugs core drug use indicators. the study was conducted between February to October 2021 as a comparative observational survey of selected PHCs. It included a retrospective and prospective cross-sectional design for prescribing and patient care indicators assessing 2640 prescriptions and clients respectively. Data were analyzed and presented as frequency with percentage or mean with standard deviation, as applicable. The performances of the types of PHCs were compared using two-sample t-test. A 2-tailed p-value < 0.05 was considered statistically significant. average number of drugs per prescription, drugs prescribed by the generic name, percentage of encounters with prescribed antibiotics and injections were 3.6 ± 0.9%, 76.5 ± 18.5%, 63.3 ± 19.1% and 21.1 ± 24.1% respectively with no significance difference between the comprehensive and basic PHCs. For all the facilities, the average consultation and dispensing times were 10.5 ± 6.0 minutes, 244.9 ± 179.2 seconds respectively. In this study, the percentage of patients' knowledge of the correct dosage was 72.4 ± 38.3%. There is statistically significant difference in availability of key drugs in stock between the comprehensive and basic PHCs (p-value 0.0001). irrational drug use practices exist in comprehensive and basic PHCs. There is a need to implement interventions aimed at strengthening good prescribing and patient-care practices across the PHCs in Lagos State.

Data Classification Technique for Assessing Drug Use in Adolescents in Secondary Education

Data Classification Technique for Assessing Drug Use in Adolescents in Secondary Education

Validation of self-reported medication use applying untargeted mass spectrometry-based metabolomics techniques in the Rhineland study.

To assess the validity of self-reported continuous medication use with drug metabolites measured in plasma by using untargeted mass spectrometric techniques. In a population-based cohort in Bonn, Germany, we compared interview-based, self-reported medication intake with drug-specific metabolites measured in plasma (based on participants who completed their study visits between March 2016 and February 2020). Analyses were done stratified by sex and age (<65 years vs ≥65 years). Cohen's kappa (κ) statistics with 95% confidence intervals (CI) were calculated. A total of 13 drugs used to treat hypertension, gout, diabetes, epilepsy and depression were analysed in a sample of 4386 individuals (mean age 55 years, 56.1% women). Eleven drugs showed almost perfect agreement (κ>0.8), whereas sitagliptin and hydrochlorothiazide showed substantial (κ=0.8, 95% CI 0.71-0.90) and moderate agreement (κ=0.61, 95% CI 0.56-0.66), respectively. Frequency of use allowed sex- and age-stratified analyses for eight and nine drugs, respectively. For five drugs, concordance tended to be higher for women than for men. For most drugs, concordance was higher among individuals aged ≥65 years than among individuals aged <65 years, but these age-related differences were not statistically significant. High concordance rates between self-reported drug use and metabolites measured in plasma suggest that self-reported drug use is reliable and accurate for assessing drug use.

DRUG UTILIZATION PATTERN OF ANTIHYPERTENSIVE MEDICATIONS IN A TERTIARY CARE HOSPITAL, SOUTH INDIA

Objective: The objective of the study is to assess drug use pattern of antihypertensive medications in hypertensive patients. Methods: It is a prospective cross-sectional study conducted in the outpatient dispensary, Government Medical College, Thiruvananthapuram for the period of 6 months from January 2019 to June 2019. About 500 prescriptions of patients visiting outpatient dispensary with an antihypertensive prescription were enrolled for the study. Drug use patterns of different classes of antihypertensive medications were analyzed from individual prescriptions. Results: A total of 500 patients were included in this study, among which 281 were male (56.2%) and 219 (43.8%) were female. In 500 patients, 133 patients were treated with monotherapy. In that 42.1% of patients were treated with amlodipine, 28.57% of patients were treated with losartan. In combination therapy most commonly used was double therapy (42.8%) followed by triple therapy (24.2%). Calcium Channel Blockers (56.2%) was most prescribed class of drug followed by Angiotensin Receptor Blockers. Conclusion: This study reveals that calcium channel blockers as most prescribed class of antihypertensive and Amlodipine was the most prescribed antihypertensive. In our study, most of the patients were treated with combination therapy in that double drug therapy was most common. There is a chance of various medication errors, development of adverse drug reaction as majority (290) of patients belong to age above 60 and chances of getting error also increases as combination therapy is most used. Therefore close monitoring is required for such patients.