Background: Drugs are one of the cornerstones in the management of many diseases. In general, drugs are used for diagnosis, prevention, mitigation of symptoms, and, sometimes, to cure disease. However, drug treatment in elderly people, especially those with dementia and cognitive impairments, may involve significant risk of adverse drug events.  The aim of this thesis was to identify the extent of potentially inappropriate drug treatment among people with dementia and cognitive impairment and to assess the occurrence and character of drug-related problems that lead to acute hospital admissions. Another aim was to assess the potential impact of a comprehensive medication review conducted by clinical pharmacists as part of a health care team on quality of patients’ drug therapy and drug-related hospital readmission rates. Method: Long-term use of antipsychotic/psychotropic drugs and associated factors were investigated among 344 and 278 people respectively with dementia living in specialized care units. Trends in the prescribing of potentially inappropriate drugs between 2007 and 2013, comprising 2772 and 1902 people, living in nursing homes in the county of Västerbotten, were assessed using six national quality indicators. Data on drug use, function in the activities of daily living, cognitive function and behavioral and psychological symptoms were collected using the Multi-Dimensional Dementia Assessment Scale. Further, an investigation of a separate corresponding population from 2012 was done, where potentially inappropriate drug use was measured before and after a total of 895 medication reviews. Finally, a randomized, controlled trial was carried out among people 65 years or older with dementia or cognitive impairment in internal medicine and orthopedic wards at two hospitals in northern Sweden. The proportion of hospital admissions that were drug-related were estimated, and also whether comprehensive medication reviews conducted by clinical pharmacists as part of a health care team could affect the risk of drug-related hospital readmissions. Results: Antipsychotic and other psychotropic drugs were frequently prescribed to people with dementia living in specialized care units for prolonged periods. Associations were found between behavioral and psychological symptoms and different psychotropic drugs. The extent of potentially inappropriate drug use declined between 2007 and 2013. In the separate corresponding population from 2012, the frequency of potentially inappropriate drug use was significantly reduced among people who underwent medication reviews. Hospitalizations due to drug-related problems among old people with dementia or cognitive impairment were prevalent. We found that inclusion of a clinical pharmacist in the health care team significantly reduced the risk of drug-related 30-day and 180-day readmissions. However, in a subset of patients with concomitant heart failure no effect was seen. Conclusion: Among patients with dementia or cognitive impairment long-term treatment with antipsychotic and other psychotropic drugs is common. The results indicate that these drugs are prescribed to treat behavioral and psychological symptoms among cognitively impaired individuals, despite limited evidence of their efficacy and the high risk of adverse effects. Drug-related problems, such as adverse drug reactions, constituted a major cause of hospital admissions. By reducing potentially inappropriate drug use and optimizing overall drug therapy, inclusion of clinical pharmacists in a health care team might improve the quality of patient care and reduce the risk of hospital readmissions among people with dementia.

The analysis of pharmacotherapy by patients suffering with DM in Greece I Author: Georgios Kalaitzidis Tutor: Professor RNDr.Jiri Vlcek,CSc. Department of Social and Clinical Pharmacy, Charles University in Prague, Faculty of Pharmacy in Hradec Kralove. Introduction: The diabetes in developed countries concerns 11% of people over 70 years and is the cause of 3% of total deaths in general population. Aim: The aim of the study was to assess the Pharmacotherapy of Diabetes mellitus type II in a pharmacy of a small town of Greece, Veria. Methods: It is retrospective cross-sectional study, which was conducted in a pharmacy in a small town of Greece, Veria. The study population consists of 60 patients with known Type II diabetes Melitus. The data collection was performed by a self-reported questionnaire, which was created and developed by the researcher and filled by the respondents. Results: The mean age of the sample was 56.5±17.5 years. Most of them were females (n=40). Most of the patients knew their fasting glucose level (93.3%,n=56).Of the patients who knew their fasting glucose level, 36 (64.3%) patients had high fasting glucose level and 20 (35.7%) had physiological fasting glucose level. From all the patients(n=60), some of them visited their physician every 6 months (n=24), and every 3 months...

Medication is an essential part of health care and enables the prevention andtreatment of many conditions. However, medication errors and drug-relatedproblems (DRP) are frequent and cause suffering for patients and substantial costsfor society. eMedication, defined as information technology (IT) in themedication management process, has the potential to increase quality, efficiencyand safety but can also cause new problems and risks.In this thesis, we have studied the employment of IT in different steps of themedication management process with a focus on the user's perspective. Sweden isone of the leading countries when it comes to ePrescribing, i.e. prescriptionstransferred and stored electronically. We found that ePrescribing is well acceptedand appreciated by pharmacists (Study I) and patients (Study II), but that therewas a need for improvement in several aspects. When the pharmacy market inSweden was re-regulated, four new dispensing systems were developed andimplemented. Soon after the implementation, we found weaknesses related toreliability, functionality, and usability, which could affect patient safety (StudyIII). In the last decade, several county councils in Sweden have implementedshared medication lists within the respective region. We found that physiciansperceived that a regionally shared medication list generally was more complete butoften not accurate (Study IV). Electronic expert support (EES) is a decisionsupport system which analyses patients´ electronically-stored prescriptions in orderto detect potential DRP, i.e. drug-drug interactions, therapy duplication, highdose, and inappropriate drugs for geriatric or pediatric patients. We found thatEES detected potential DRP in most patients with multi-dose drug dispensing inSweden (Study V), and that the majority of alerts were regarded as clinicallyrelevant (Study VI).For an improved eMedication, we need a holistic approach that combinestechnology, users, and organization in implementation and evaluation. The thesissuggests a need for improved sharing of information and support for decisionmaking, coordination, and education, as well as clarification of responsibilitiesamong involved actors in order to employ appropriate IT. We suggestcollaborative strategic work and that the relevant authorities establish guidelinesand requirements for IT in the medication management process. / Läkemedel förbättrar och förlänger livet för många och utgör en väsentlig del av dagens hälso- och sjukvård men om läkemedel tas i fel dos eller kombineras felaktigt med varandra kan behandlingen leda till en försämrad livskvalitet, sjukhusinläggningar och dödsfall. En del av dessa problem skulle kunna förebyggas med rätt information till rätt person vid rätt tidpunkt och i rätt form. Informationsteknik i läkemedelsprocessen har potentialen att öka kvalitet, effektivitet och säkerhet genom att göra information tillgänglig och användbar men kan också innebära problem och risker. Det är dock en stor utmaning att i läkemedelsprocessen föra in effektiva och användbara IT-system som stödjer och inte stör personalen inom sjukvård och på apotek, skyddar den känsliga informationen för obehöriga och dessutom fungerar tillsammans med andra system. Dagens IT-stöd i läkemedelsprocessen är otillräckliga. Till exempel saknar läkare, farmaceuter och patienter ofta tillgång på fullständig och korrekt information om en patients aktuella läkemedel; det händer att fel läkemedel blir utskrivet eller expedierat på apotek; och bristande eller långsamma system skapar frustration hos användarna. Dessutom är det flera delar av läkemedelsprocessen som fortfarande är pappersbaserade. Därför är det viktigt att utvärdera IT-system i läkemedelsprocessen. Vi har studerat IT i olika delar av läkemedelsprocessen, före eller efter införandet, framför allt utifrån användarnas perspektiv. Sverige har lång erfarenhet och tillhör de ledande länderna i världen när det gäller eRecept, det vill säga recept som skickas och lagras elektroniskt. I två studier fann vi att eRecept är väl accepterat och uppskattat av farmaceuter (Studie I) och patienter (Studie II), men att det finns behov av förbättringar. När apoteksmarknaden omreglerades 2009 infördes fyra nya receptexpeditionssystem på apoteken. Vi fann att det efter införandet uppstod problem med användbarhet, tillförlitlighet och funktionalitet som kan ha inneburit en risk för patientsäkerheten (Studie III). I Sverige har man inom flera sjukvårdsregioner infört gemensamma elektroniska läkemedelslistor. I en av studierna kunde vi visa att detta har inneburit en ökad tillgänglighet av information, men att en gemensam lista inte alltid blir mer korrekt och kan innebära en ökad risk att känslig information nås av obehöriga (Studie IV). I två av studierna undersöktes beslutsstödssystemet elektroniskt expertstöd (EES):s potential som stöd för läkare att upptäcka läkemedelsrelaterade problem till exempel om en patient har två olika läkemedel som inte passar ihop, eller ett läkemedel som kanske är olämpligt för en äldre person. Studierna visade att EES gav signaler för potentiella problem hos de flesta patienter med dosdispenserade läkemedel i Sverige (Studie V), och läkarna ansåg att majoriteten av signalerna är kliniskt relevanta och att några av signalerna kan leda till förändringar i läkemedelsbehandlingen (Studie VI). Sammantaget visar avhandlingen att IT-stöd har blivit en naturlig och nödvändig del i läkemedelsprocessen i Sverige men att flera problem är olösta. Vi fann svagheter med användbarhet, tillförlitlighet och funktionalitet i de använda IT-systemen. Patienterna är inte tillräckligt informerade och delaktiga i sin läkemedelsbehandling. Läkare och farmaceuter saknar fullständig och korrekt information om patienters läkemedel, och de har i dagsläget inte tillräckliga beslutsstöd för att förebygga läkemedelsrelaterade problem. Eftersom läkemedelsprocessen är komplex med många aspekter som påverkar utfall behöver vi ett helhetstänkande när vi planerar, utvecklar, implementerar och utvärderar IT-lösningar där vi väger in både tekniska, sociala och organisatoriska aspekter. Avhandlingens resultat visar på ett behov av ökad koordination och utbildning samt förtydligande av ansvaret för inblandade aktörer. Vi föreslår gemensamt strategiskt arbete och att inblandade myndigheter tar fram vägledning och krav för IT i läkemedelsprocessen.

ANALYSIS OF DRUG-RELATED PROBLEMS IN A HEALTHCARE FACILITY V. Author: Thu Thao Truongová Supervisor of the diploma thesis: PharmDr. Martin Doseděl, Ph.D. Consultant: PharmDr. Veronika Měrková Charles University, Faculty of Pharmacy in Hradec Králové, Department of Social and Clinical Pharmacy INTRODUCTION Medication errors are one of the most frequent medicinal errors. They affect patient's safety from the long-term point of view.1 The great part of medication errors occurs on the level of drug administration.2 In healthcare facilities mostly nurses are responsible for medication administration.3 AIM To obtain and evaluate medication errors during drug administration by nurses in a healthcare facility. METHODICS A prospective observational study was conducted in the facility Hamzova léčebna for children and adults focusing on medical rehabilitation. Data collection was performed in May 2019 three consecutive days on each ward, where drugs were administrated by nurse. Direct observation was done in morning, noon and evening drug administrations. Obtained data were recorded into prepared form and were compared with physician's medication order on the patient's record. Afterwards, the forms were transcripted into online database, data were transfered to MS Excel software programme and evaluated by...

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The overall aim of this thesis was to evaluate clinical pharmacist interventions with the focus on methods aiming to improve the quality of drug therapy and increase patient safety. Adverse drug events caused by medication errors, suboptimal dosages and inappropriate prescribing are common causes of drug-related morbidity and mortality. Clinical pharmacists integrated in multi-professional health-care teams are increasingly addressing these issues. A randomised controlled trial (RCT) was conducted to investigate the effectiveness of clinical pharmacists’ interventions in reducing morbidity and use of hospital care for patients 80 years or older. The results showed that the intervention group had fewer visits to hospital and that the intervention was cost-effective. In a subsequent study based on the population in the RCT, the appropriateness of prescribing was assessed using three validated tools. The results indicated improved appropriateness of prescribing for the intervention group as a result of the intervention. The tools and the number of drugs at discharge were then tested for validity in terms of causal links between the scores at discharge and hospitalisation. No clear correlations between high scores for the tools or a high number of drugs and increased risk of hospitalisation could be detected. During the inclusion period of the RCT a survey based study was conducted where the perceived value of ward-based clinical pharmacists, from the perspective of hospital-based physicians and nurses as well as from general practitioners (GPs) was evaluated. The respondents were positive to the new collaboration to a high degree and stated increased patient safety and improvements in patients’ drug therapy as the main advantages. In the last study the frequency and severity of prescription and transcription errors, when patients enrolled in the multidose-dispensed medications (MDD) system are discharged from hospital, was investigated. The results showed that errors frequently occur when MDD patients are hospitalised.

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Orientadores: Priscila Gava Mazzola, Patricia Moriel / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Ciências Médicas / Made available in DSpace on 2018-08-21T18:32:30Z (GMT). No. of bitstreams: 1 Costa_CarolinedeGodoiRezende_M.pdf: 3126877 bytes, checksum: 97128de773972dad8f95a4242353e863 (MD5) Previous issue date: 2012 / Resumo: Muitos fatores contribuem para a resposta do paciente à terapia antirretroviral (TARV), incluindo adesão, efetividade farmacológica e tolerância. A TARV é complexa e longa, e o risco de falha virológica, comumente associada à resistência antirretroviral, aumenta quando a adesão diminui. Neste contexto, a presença do farmacêutico, como o profissional capaz de orientar o paciente em relação à terapia medicamentosa e realizar o acompanhamento farmacoterapêutico, estimula os pacientes a estarem familiarizados com seus próprios esquemas terapêuticos, tornando mais simples a compreensão da importância do uso correto do medicamento, aumentando a adesão à terapia, efetividade e tolerância. Este trabalho teve como objetivo avaliar a efetividade da Intervenção Farmacêutica (IF) na resolução dos Problemas Farmacoterapêuticos (PFTs) e na melhora dos parâmetros clínicos dos pacientes com HIV/AIDS. Foi realizado um estudo prospectivo controlado intervencionista, com amostra consecutiva e de conveniência com controles de reposição emparelhados segundo gênero e valores iniciais de linfócitos T CD4+. Do total de pacientes selecionados para o estudo (n=143), 57 (39,86%) pacientes foram descontinuados e 86 pacientes finalizaram o estudo de 1 ano, sendo 43 pacientes do controle (GC) e 43 do grupo intervenção (GI). Os pacientes do GI receberam acompanhamento farmacoterapêutico por meio de método próprio baseado no método Pharmacotherapy workup. Durante o período de 1 ano foram realizadas 202 Intervenções ou Orientações Farmacêuticas no GI, com uma redução de 38,43% (p=0,0001) do total de PFTs. O GI apresentou aumento médio da variação de CD4 1,84 vezes maior que o aumento observado GC, com média de 154,66 para o GI e 83,80 para o GC. Apesar da carga viral média final do GI ser maior do que aquela observada no GC (17394,51 e 12921,53 cópias/mL, respectivamente), para o GI foi observada uma redução 3 vezes maior da carga viral do que para o GC: GI variou em média 23517,67 e GC, 6226,51. Os resultados deste estudo indicam que as Intervenções Farmacêuticas proporcionaram redução PFTs principalmente aqueles relacionados às reações adversas e interações medicamentosas, promoveram a adesão, aumentaram a efetividade da terapia antirretroviral, constatada com maior elevação da contagem de CD4 e redução da carga viral em comparação com o grupo controle / Abstract: Many factors contribute to the patient's response to antiretroviral therapy (ARVT), including adhesion, drug effectiveness and tolerance. Antiretroviral therapy is complex and lengthy, and the risk of virologic failure commonly associated with antiretroviral resistance increases when adhesion decreases. In this context, the presence of the pharmacist as a professional capable of guiding the patient in relation to drug therapy and follow up drug use, encourages patients to be familiar with their own therapeutic regimens, making it easier to understand the importance of using correct medicine, increasing adherence to therapy, effectiveness and tolerance. This study aimed to evaluate the effectiveness of pharmaceutical intervention (PI) in solving drug related problems (DRPs) and improvement of HIV/ AIDS patients clinical parameters. We conducted a prospective controlled intervention study, with a consecutive and convenience sampling with replaced controls paired by gender and initial T CD4+ lymphocytes values. Out of the total patients enrolled in the study (n=143), 57 (39,86%) patients were discontinued and 86 patients completed the 1-year study, with 43 patients in the control group (CG) and 43 in the intervention group (IG). Patients from de IG received pharmacotherapeutic follow up through a method developed in this work and some Pharmacotherapy workup method features. Over the period of 1 year were performed 202 interventions or counselling on Pharmaceutical IG, with a decrease of 38.43% (p = 0.0001) of total PFTs. The IG showed a mean improvement variation of 1.84 times CD4 greater than the increase observed CG with an average of 154.66 for IG and 83.80 for CG. Although the final viral load mean of IG found were greater than that observed in the CG (17394.51 and 12921.53 copies / mL, respectively), IG presented a reduction of three times greater than that in the CG: IG had mean range of 23517.67 and CG, 6226.51. The results of this study indicate that pharmacist interventions led to lower DRPs especially those related to adverse reactions and drug interactions, promoted adherence, increased the effectiveness of antiretroviral therapy, verified with greater elevation of CD4 count and viral load reduction compared with the control group / Mestrado / Ciencias Biomedicas / Mestra em Ciências Médicas

Background: Medications are used to treat, cure, or relieve symptoms of diseases, but there is a risk with the use of medications. Drug-related-problems are known to increase morbidity and mortality. Incorrect medical list and discrepancies in these lists can lead to drug-related problems as side effects, hospitalization, non-compliance, drug interactions and overtreated or undertreated patients. Discrepancies can be for example: more prescriptions than necessary, outdated prescriptions, i.e., medicines that will not be used, prescriptions with incorrect dosing and missing prescriptions i.e., medicines used by patients that cannot be seen in the medication list. Purpose:  The aim of this study was to investigate discrepancies in the Swedish prescription list "My saved prescriptions at the pharmacy". The secondary aim was to investigate how common it is to use this prescription list or the dosage label on the medicine packaging to know which medicines to use and which dosage. Methods: The data collection was performed by four pharmacy students at seven pharmacies in Sweden over a period of three weeks during Jan-Feb. 2021 where the prescription list was investigated together with patients to identify any discrepancies. The study included patients who was over 18 years old, spoke Swedish, had three or more prescribed drugs, and agreed to participate.  Results A total of 215 patients were interviewed, where 61% had one or more discrepancies in their medication list. A total of 1717 prescriptions were analyzed, of which 10% were double prescriptions (n = 167), 8% outdated prescriptions (n = 141) and 3% prescriptions with the wrong dosage (n = 42). When analyzing the primary sources of information used by patients to know which medicine to use, the printout of the list "my saved prescriptions at the pharmacy” dominated (n = 72).  Most used information source to know drug dosage was the dosage label on the medicine packaging (n = 112). Conclusions: It is important to have an updated and correct information in the medication list, to prevent drug-related-problems caused by discrepancies. It becomes even more important when we see that the medication list "My saved prescriptions at the pharmacy" and dosage label (containing the same information in the medication list), are the most used primary sources by patients to know which drug to use and in what dosage. Finally, results show a relationship between the number of prescribed drugs and the number of discrepancies that occur, and therefore we see more discrepancies in elderly patients who are usually ill and are being treated for several diseases.  There are opportunities for further research to study e.g., which drug-related-problems are caused by discrepancies in the medication list as well as the degree of danger in these problems. / Användning av läkemedel som avses behandla, lindra eller bota sjukdomar kan i vissa fall utgöra en risk för patientens hälsa. Läkemedelsrelaterade problem p.g.a. felmedicinering står för en stor andel av morbiditeten och mortaliteten bland patienter. En bidragande orsak är ofullständig information i patientens läkemedelslista.   Syftet med studien var att undersöka antalet avvikelser som förekommer i receptlistan ”Mina sparade recept på apoteket”. Studiens sekundära syfte var att undersöka vilka informationskällor som användes av patienter för att veta vilka läkemedel som ska adminstreras och i vilken dos dosering.  Studiens metod var att intervjua patienter som kom till apoteket för att hämta ut läkemedel till sig själva och uppfyllde inklusionskriterierna för att delta i studien. Studien utfördes av fyra farmaceutstudenter på sju olika apotek i fyra olika städer i Sverige som tillsammans med patienter gick igenom receptlistan för att identifiera avvikelser.  Resultatet blev totalt 1717 recept som studerades varav 21% hade avvikelser. Av recepten var 10% dubbla recept (n = 167), 8% inaktuella recept (n = 141) och 3% recept med fel dosering (n = 42). Vid analys av primära informationskällor som används dominerade utskrift av listan ”Mina sparade recept på apoteket” (n = 72) resp. doseringsetiketten på läkemedelsförpackningen (n = 112).  Resultaten visade även ett samband mellan ökade antal läkemedel och antalet avvikelser.  Avvikelser i läkemedelslistan Mina sparade recept är vanligt förekommande därmed är listan inte alltid aktuell. Det är vanligt att denna lista och doseringsetikett på läkemedels-förpackningar används som primära källor av patienter under deras behandlingstid vilket kan innebära en risk för läkemedelsrelaterade problem. En gemensam nationell läkemedelslista är en möjlig lösning till att förebygga läkemedelsrelaterade problem orskade av infromationsbrist i läkemedelslistor. Det är dock nödvändigt med läkemedelsgenomgångar för att bibehålla uppdateringen av listan.

Erros de medicação e eventos adversos relacionados a medicamentos são comuns em pacientes hospitalizados. O risco de ocorrer problemas com a população pediátrica é cerca de três vezes maior do que com a população adulta, especialmente em unidades de terapia intensiva, onde os pacientes são submetidos a grande número de prescrições de medicamentos intravenosos, com baixo índice terapêutico e formas farmacêuticas adaptadas. A farmácia clínica tem como objetivo introduzir o farmacêutico clínico junto à equipe multidisciplinar de saúde no sentido de intervir, prevenindo problemas relacionados a medicamentos à farmacoterapia (PRF), otimizando-a e contribuindo para a segurança do paciente. O presente estudo teve como objetivo avaliar a implantação e o impacto das intervenções da farmácia clínica no Centro de Terapia Intensiva-Pediátrico (CTIP) do Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo (HCFMRP-USP). Trata-se de estudo prospectivo, observacional e descritivo que incluiu crianças de zero a dezoito anos, no período de um ano. Foi aplicada a ferramenta Failure Mode and Effects Analysis (FMEA - Análise dos Modos de Falha e seus Efeitos) no início do estudo para avaliar os riscos relacionados aos medicamentos no CTIP e orientar a atuação da farmácia clínica, em que o farmacêutico avaliou as prescrições diárias e realizou intervenções junto à equipe multidisciplinar. Foram acompanhadas 162 crianças e avaliadas 1586 prescrições com uma taxa de PRF de 12,42% (IC95% 10,50-14,04). Foram realizadas 197 intervenções com custo salvo de R$15.118,73. Os principais tipos de intervenções foram relacionados à indicação e necessidade do medicamento. A partir destas, os grupos foram divididos em pacientes com PRF e sem PRF. Foram detectadas diferenças significativas nas seguintes variáveis: peso, idade, tempo de internação, tempo de acompanhamento, custo total, custo salvo pelas intervenções, gravidade dos pacientes avaliada pelo escore PRISM e PELOD, quantidade total de medicamentos utilizados e quantidade de medicamentos potencialmente perigosos e endovenosos contínuos. Além disso, houve diferenças significativas na taxa de óbito e nas categorias diagnósticas entre os grupos. A implantação do serviço de farmácia clínica no CTIP mostrou impacto positivo na redução de riscos relacionados a todo o processo de utilização de medicamentos. As intervenções do farmacêutico clínico identificaram e preveniram PRF, promovendo o uso racional de medicamentos e contribuindo para a redução de custos associados à prescrição médica. / Medication errors and adverse events related to drugs are common in hospitalized patients. The potential risk for medication errors in pediatric patients is about three times higher than in adults, especially in intensive care units, where patients are subjected to a large number of intravenous drug prescriptions, with low therapeutic index and adapted pharmaceutical forms. Clinical pharmacy aims to introduce the clinical pharmacist in a multidisciplinary health team in order to intervene, preventing drug-related problems (DRPs) and optimize pharmacotherapy, contributing to patient safety. This study aimed to assess the implementation and the impact of clinical pharmacy interventions in the Pediatric Intensive Care Unit (PICU) of Hospital das Clinicas of Ribeirao Preto Medical School, University of São Paulo (HCFMRP-USP). This was a prospective, observational and descriptive study which included children from zero to eighteen years of age, over a one year period. Failure Mode and Effects Analysis Tool (FMEA) was applied at the beginning of the study to assess the risks related to medicines in the PICU and to guide clinical pharmacy work, where the pharmacist evaluated daily prescriptions and made interventions along with a multidisciplinary team. One thousand five hundred and eighty-six prescriptions of 162 children were assessed, and a DRPs rate of 12.42% (95% CI - 10.50 to 14.04) was found. One hundred ninety-seven interventions were performed, with a cost saving of R$ 15,118.73. The main types of interventions were related to indication and necessity of the drug. From these, the groups were divided in patients with DRPs and without DRPs. Significant differences were found in weight, age, time of hospitalization, time of follow-up, total cost, costs saved by interventions, severity of patients assessed by PRISM and PELOD scores, total amount of medications used, and number of potentially dangerous and continuous intravenous medications. In addition, there were significant differences in mortality rate and diagnostic categories between groups. The implementation of clinical pharmacy service in the PICU showed a positive impact on patients\' treatment. The clinical pharmacist interventions identified and prevented DRPs, promoting the rational use of medications and contributing to the reduction of costs associated with medical prescription.