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Background: Migraine is a disabling disease that poses a significant societal burden. Migraine is a major cause of disability. Migraine is the eighth leading disease-causing disability in the population. Objective: To study the clinical profile and measure the pain and migraine-related disability of patients with all types of migraine using the McGill pain assessment scale and Migraine Disability Assessment (MIDAS) before and after 3 months of effect on the medication. Methods: A Prospective-Cross sectional study was carried out in a multispecialty hospital with male and female patients between 18 and 65 years. The data were collected from the patients directly through the questionnaire of McGill pain assessment scale-short form (SF) and MIDAS, which was provided before and after the medication. Results: There were 165 subjects of which 52 were men and 113 were women. The mean age of all the subjects was 43 years. About 26.06% of the subjects had a family history of headaches. The scores of McGill pain and MIDAS assessment before and after medication were as follows: 0-15 were 30.90% and 73.33%, Score 16-30 were 54.54% and 18.18%, the score of 31-45 were 14.54% and 7.87% of the subjects. MIDAS grade I was 17.57% and 50.90%, Grade II 33.93% and 21.81%, Grade III 30.30% and 15.75% Grade IV 18.18% and 11.51% of the subjects. Discussion: The calculated "t" value between the before and after medication values of McGill and MIDAS by paired 't-test was 13.85 and 17.49 respectively. As the calculated "t" value is more than the table value, the alternate hypothesis is accepted. Conclusion: This study confirms that there is a significant difference in disability levels before and after acute and preventative treatments when measured over 3 months. In addition, the preponderance of females was high, and the functional disability that affects work and social activity associated with migraine is moderate to severe.
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Background: Limited data are available on factors that are associated with passing rates for the Saudi Pharmacist Licensure Examination (SPLE). The aim of this study is to investigate student characteristics and academic performance characteristics that may predict their success on SPLE. Methods: This was a single-institution retrospective cohort study, which included pharmacy graduates from 2019 to 2021. Demographic, academic, and SPLE data were collected for each graduate. Binary logistic regression was used to explore the association between potential predictors and first-time SPLE pass status. A stepwise regression was then performed to develop multiple logistic models. Results: A total of 494 graduates were included in the study. Females, PharmD graduates, and on-time graduation had higher odds of passing SPLE (P = 0.0065, P = 0.0003, and P < 0.0001, respectively). For each 0.5 increase in GPA, the odds of passing SPLE increase by 3.5 times (OR 3.53; 95 % CI, 2.83-4.42; P < 0.0001). Of the tests taken prior to university admission, the overall high school score, general aptitude test (GAT) score, and qualifying score were significantly associated with higher SPLE first-time pass rates. When multiple logistic regression analysis was performed, GPA and GAT scores were the only significant predictors for higher SPLE first-time pass rates (P < 0.0001 and P = 0.0002, respectively). Conclusion: The current research has shown that there is an association between higher SPLE first-time pass rates and several factors, most importantly the GPA and GAT score. Further research is needed, as it has the potential to inform the decision when reviewing pharmacy admission criteria.
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Measuring patient safety culture in the community pharmacy can help with identifying areas for development. The current study is a descriptive, cross-sectional, electronic survey conducted among pharmacists working in community pharmacies located in the southern region of Saudi Arabia. The community pharmacy version of the "Pharmacy Survey on Patient Safety Culture" (PSOPSC) was used to collect data. The positive response rate (PRR) was calculated as per the guidance provided by the Agency for Healthcare Research and Quality (AHRQ). Based on the PRR, two least-achieved items (<25%) were taken for further analysis to identify the possible predictors. A sum of 195 pharmacists were included in this study and most of them were working in chain pharmacies. The highest PRRs were observed with teamwork (94.99), and patient counseling (94.13), followed by physical space and environment (93.07). The lowest PRRs were observed with staffing, work pressure, and pace (47.70), followed by communication openness (72.60). Specific characteristics, such as experience and the number of working hours, are significantly related to a poor PRR. The current study results indicate that the scope for improving patient safety exists in various areas of community pharmacies. However, it is necessary to prioritize the need based on a positive response rate.
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This study aimed to evaluate Saudi Arabian public perceptions toward influenza and COVID-19 immunization during the flu season. A cross-sectional self-administered, structured, and closed-questionnaire online survey was conducted on the general public. A total of 422 people willingly participated in the survey using several social media platforms from 15 May to 15 July 2021. Residents of Saudi Arabia aged 18 or older (eligible for COVID-19 vaccination) were included in the study and willing to answer questionnaires. The 422 participants who agreed to participate in the study completed the questionnaire. Thirty-seven percent of the participants were youth (18-25 years). More than 80% of the participants in the study agreed or strongly agreed that flu and COVID-19 vaccines must be mandatory for all populations. At the same time, 42.4% considered that the COVID-19 vaccine might positively impact the public and the economy in the future. Participants confirmed to have had COVID-19 or the flu since the beginning of the outbreak totaled 21.3%. Of the participants, 54% had sufficient knowledge about vaccine types and safety. Most of our participants (54.9%) agreed that preventive measures were still required, even with the existence of vaccines. Our study provides an overview of COVID-19's influence on Saudi Arabia during the flu season. The Saudi Arabian government should consider preventive efforts to strengthen confidence in the health advantages offered by prospective immunization to prevent a twindemic of influenza and COVID-19.
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The speedy change in the Saudi Arabian community's socio-demographic pattern will significantly influence reproductive attitudes and practices with increasing preferences toward family planning because of the use of contraceptives. The current study was conducted to determine the attitudes and knowledge of married women in the Aseer region of Saudi Arabia regarding contraceptives use. Saudi married women from the Aseer region were the participants of this cross-sectional study. The study's objectives were covered via a standardized questionnaire, and the study comprised of 412 married women. A 100 % participant's response was demonstrated, while 31.8 % of the respondents were 31-40 years old. Most of the participants have a great awareness and knowledge about contraceptives, while (n=324; 78.6%) had previously used contraceptives. Additionally, 297 (72.1%) have intention to use contraceptive methods in the future. Majority of the participants (n=297; 91.6%) considered the economic and family planning as a reason for using the contraceptives, while natural family planning was mostly preferred (n=202; 49%). Logistic regression analysis exhibited significant correlation between the age, education, employment, monthly income and children number. The findings show that Saudi married women have high perceptions and knowledge of contraception. However, more effort is required to raise awareness regarding family planning and contraceptives, whereas the policy makers must exclude the obstacles to women from using contraceptives.
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Femenino , Arabia Saudita , Esposos , Anticoncepción , Planificación FamiliarRESUMEN
Being in a rapidly changing and dynamic environment during the COVID-19 pandemic, individuals' perceptions change on a daily basis, and this starts to inform the status of knowledge, attitude, and practices (KAP) during the second wave of the pandemic. AIM: To assess the KAP on COVID-19 among students, teaching staff, and administrative staff in the Asir region for the first time. METHODS: A questionnaire-based survey cross-sectional study was conducted from 10 February to 10 March 2021 using an online questionnaire. RESULTS: In the survey of students and staff in educational institutes in the Asir region, the target population were well informed about COVID-19; in 10 out of 13 questions, more than 80% of the respondents answered correctly. The attitude of the target populations was quite positive. They were worried about the increase in the number of COVID-19 cases. The target populations were concerned (94.8%) for their kith and kin not to get infected. The target populations agree with the precautionary measures that were taken by Saudi authorities. A positive association was found between knowledge and practices as well as knowledge and attitudes of the target population. A significantly positive association was observed between attitudes and practices of the educational institutes' respondents in Asir, Saudi Arabia. CONCLUSION: The students and staff in educational institutes in the Asir region have a high level of knowledge about COVID-19, have a positive attitude toward it, take proper precautions against it, and are enthusiastic about the COVID-19 vaccine.
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In 2019, the Saudi Pharmacist Licensure Examination (SPLE) was first administered to all pharmacy graduates and served as one of the prerequisites for obtaining a pharmacist license. The objective of this study was to evaluate whether institution and applicant characteristics are associated with first-time SPLE success. Passing status for 2284 SPLE first-time applicants was obtained from online public data for the years 2019 and 2020. The data included applicant sex, institution type (public vs. private), and college establishment year (2006 or earlier vs. after 2006). Overall, the SPLE first-time pass rate in 2020 was significantly higher than in 2019 (98.0 vs. 95.9%; p = 0.0062). Applicants from pharmacy colleges established in or before 2006 had a higher SPLE first-time pass rate, compared to those from pharmacy colleges established after 2006 (98.2 vs. 95.2%; p < 0.0001). The pass rate for male applicants was lower compared to female applicants (95.8 vs. 97.5%; p = 0.0221). The results of logistic regression showed that exam year (2020 vs. 2019), applicant sex (female vs. male), and pharmacy college establishment year (≤2006 vs. >2006) were statistically significant predictors. Further studies are needed in the upcoming years when more cumulative data are available.
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Introduction: Community pharmacists play a key role as vaccinators for COVID-19. They can reduce the burden of the disease worldwide. Objective: This study used a cross-sectional questionnaire to determine whether the Saudi Arabian public was willing to obtain the COVID-19 vaccine via community pharmacists. Results: The questionnaire focused on the satisfaction, concerns, and opinions towards providing vaccination by community pharmacists. The study featured 415 individuals aged 18 and older (eligible for the COVID-19 vaccine). Of the participants in this study, 58.1% were aged 18-25, with 55.4% female. Most participants (72.8%) have not been exposed to COVID-19 and are not aware of the approval of COVID-19 vaccination by community pharmacists. Of the 415 complete questionnaires, 45% believed that community pharmacists are not experienced in administering vaccines. However, 63% of participants are satisfied with getting the COVID-19 vaccination by a community pharmacist if no other option is available. More than 68% of the respondents agree that community pharmacies should expand their health care services to include vaccinations, prescriptions, checkups, and other forms of preventative medicine. Discussion: The availability of community pharmacist-administered vaccination in Saudi Arabia could be a significant factor in the success of the country's vaccination program. This study may serve as a model to expand the role of pharmacists in other countries' vaccination programs.
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Introduction: Pharmacists' involvement in patient care is expanding. The inclusion of this function within a complex healthcare system populated by demanding patients may create ethical challenges. In Saudi Arabia, few studies have been conducted on pharmacy ethics, and the available data are quantitative in nature. Thus, there remains a need for a qualitative assessment of the ethical dilemmas facing pharmacists. Methods: This exploratory study utilized a qualitative methodology that included open-ended, in-depth, semi-structured interviews, followed by content analysis. The study recruited credentialed pharmacists from community and hospital pharmacies. Themes and codes were created and classified. Results: Eighteen pharmacists were interviewed, and their responses were categorized into eight areas of ethical dilemma: beneficence and non-maleficence, autonomy, justice, confidentiality, veracity, communication skills, sincerity and religion, and law. Taken together, it appears that most of the ethical challenges to the practice of pharmacy center on the theme of beneficence and non-maleficence. Additionally, it was found that some social and religious practices and beliefs contribute to the formation of participants' ethical backgrounds. Conclusion: These findings may aid in the development of national pharmacy ethics guidelines in Saudi Arabia. Additional quantitative research is necessary to confirm the study's findings.
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INTRODUCTION: Social media platforms are used by many people to seek and share health-related information that may influence their decision-making about COVID-19 vaccination. PURPOSE: The objective of this study is to understand the influence of social media on the attitudes and willingness of the general public of the Aseer region of Saudi Arabia to receive COVID-19 vaccination. MATERIALS AND METHODS: A cross-sectional self-administrated online survey was conducted in Saudi Arabia Aseer region, where 613 persons willingly took part in the survey in April and May 2021. Residents of Aseer in Saudi Arabia, who are over the age of 18 (eligible for COVID-19 vaccination) and willing to participate in the survey, were included in the study. RESULTS: Overall, 74.6% agreed that the COVID-19 vaccine was misrepresented via social media. However, 37% of those respondents strongly agreed that social media had increased their willingness to get the COVID-19 vaccine. In addition, employees reported (21.8%) or strongly agreed (28%) that the quantity and quality of information on social media has a detrimental impact on their psychological well-being. Additionally, participants also agreed (21.8%) or strongly agreed (28%) that social media had a negative effect on their psychological condition. CONCLUSION: The study provides that there was a high degree of awareness indicated among Aseer population regarding misleading information about COVID-19 vaccination via social media. Thus, social media that can share up-to-date scientific information about vaccination must be utilized optimally by the government to assist people in making decisions about accepting vaccinations.
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Pregabalin is a first-line therapy for neuropathic pain and for chronic pain. It has abuse potential. This study was conducted to assess community pharmacists' perceptions towards pregabalin abuse and misuse in the Aseer region, Saudi Arabia, and identify predictors and associated factors. A cross-sectional survey using a structured questionnaire following a self-administrative study was conducted across community pharmacies in the Aseer region (Abha, Khamis Mushait, Mahayel, Sarat Abeeda, Ahad-Rufaida, and Bishah). A total of 206 respondents from community pharmacists participated in the study. Over the last six months, 136 respondents (66.0%) suspected pregabalin abuse in community pharmacies; male dominance in pregabalin abusers was also recorded (n = 165, 80.1%). Additionally, 40 (19.4%) respondents stated that a prescription was not issued for pregabalin demands. Over half (61.7%) of community pharmacists recorded an increased change in pregabalin abuse compared to the previous year. This is the first study to explore pharmacists' perceptions in the community of the Aseer region towards customers' misuse and abuse of pregabalin. Further monitoring and regulations on the prescribing and procurement of pregabalin are needed to avoid abuse.
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PURPOSE: This study investigated the 1-year risk of ischemic heart disease (IHD), all cardiovascular events, and all-cause mortality among newly diagnosed Parkinson's disease (PD) patients who used antidepressants compared to those who did not. PATIENTS AND METHODS: Patients with PD aged 40 years or older were identified using data from 2000 through 2016 held within the Welsh Secure Anonymized Information Linkage (SAIL) databank. Antidepressant users were propensity-score matched 1:1 with non-users, adjusting for patients' demographics, socioeconomic status, and multiple comorbidities. Cox proportional hazard regression analyses were performed to calculate the hazard ratios (HRs) and 95% confidence intervals (CIs) for the association between the antidepressants and the study outcomes. The follow-up period was 1 year after the initial prescription of antidepressants. RESULTS: The study group comprised a total of 3364 participants, with numbers split equally between the antidepressant-user and non-user groups, based on the propensity score-matching process. Overall, the propensity score-adjusted model showed that antidepressant usage in PD patients was not significantly associated with the risk of IHD (HR = 1.05; 95% CI 0.63-1.75) or all cardiovascular events (HR = 1.01; 95% CI 0.71-1.45) compared to non-users. The propensity score-adjusted model also showed that the use of any antidepressant, regardless of its category, was not statistically significantly associated with all-cause mortality (HR = 0.81; 95% CI 0.65-1.02). However, this association reached statistical significance in the multivariate adjusted model (HR = 0.67; 95% CI 0.54-0.84). CONCLUSION: There was no evidence that antidepressant use was associated with an increased risk of IHD or all cardiovascular events in newly diagnosed PD patients who suffered from depression. Furthermore, antidepressant use might reduce the mortality rate in PD patients during the first year after initiation.
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PURPOSE: Observational studies have examined the association between antipsychotics and ischemic heart disease (IHD) in general populations, but results did not take into account other comorbid diseases, such as Parkinson's disease (PD). This study investigates the one-year risk of IHD, all cardiovascular events, and all-cause mortality among newly diagnosed PD patients who used antipsychotics compared to non-users. MATERIALS AND METHODS: This study included individuals aged 40 years or older with a first definitive PD diagnosis Read Code in the Secure Anonymised Information Linkage (SAIL) databank who had been initiated on any PD medication between 2000 and 2016. Antipsychotic users were matched 1:1 with non-users by a propensity score model to control the confounding effects of patients' demographics, social deprivation status, comorbidities, and medication history. Cox regression was performed to calculate the hazard ratios (HR) and 95% CIs for the association between antipsychotics and study outcomes. RESULTS: A total of 1837 participants were included in the analysis. Users of first-generation antipsychotics (FGA) were significantly more likely to develop IHD compared to non-users, with an HR of 2.60 (95% CI 1.103-6.167). Among the FGAs, haloperidol had the highest likelihood of IHD developing, with an HR of 3.01 (95% CI 1.038-8.729). Any use of antipsychotics, regardless of whether they were FGA or second-generation antipsychotics (SGA), was linked to all-cause mortality, with an HR of 4.201 (95% CI 3.272-5.394). When subdividing antipsychotics into FGAs and SGAs, mortality was more likely in FGA users, with an HR of 7.557 (95% CI 5.633-10.139). Mortality also occurred in SGA users, but with a lower HR of 3.278 (95% CI 2.509-4.282). CONCLUSION: FGAs were associated with an increased risk of IHD and all-cause mortality in newly diagnosed PD patients with psychosis. This finding emphasizes the need to use antipsychotics with caution in PD patients with psychosis.
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OBJECTIVES: Although depression symptoms are common among patients with Parkinson's disease (PD), the medical literature still reports underrecognition of depression in patients with PD. Our main objective is to examine the trend of depression recognition during the first year of PD diagnosis using large population data. METHODS: We conducted a population-based study of residents in Wales, using the Secure Anonymized Information Linkage (SAIL) Databank. We included newly diagnosed patients with PD aged 40 years or older with a first PD diagnosis between 2000 and 2015. Depression and antidepressants related data were extracted from SAIL. A series of multilevel logistic regressions were run to determine the factors affecting depression recognition. The results were presented using odds ratios (ORs) with 95% confidence intervals (CI). RESULTS: The study included 6596 patients with PD. About 38% of patients had a recorded code of antidepressants, depression diagnosis, or both within the first year of PD diagnosis. There was a significant association of depression diagnosis, antidepressant use, or both with the year of PD diagnosis (OR 0.972, 95% CI 0.962-0.983). We also found that patients who used monoamine oxidase inhibitors (MAO-B inhibitors) were associated with a lower depression diagnosis, use antidepressants, or both, compared to those who did not use MAO-B inhibitors (OR 0.769, 95% CI 0.627-0.943). CONCLUSION: There is a slight decrease in depression recognition in PD patients between 2000 and 2015, which could be due to an increase in depression recognition during the prodromal phase of PD.
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Enfermedad de Parkinson , Antidepresivos/uso terapéutico , Depresión/tratamiento farmacológico , Depresión/epidemiología , Humanos , Modelos Logísticos , Inhibidores de la Monoaminooxidasa , Enfermedad de Parkinson/complicaciones , Enfermedad de Parkinson/tratamiento farmacológico , Enfermedad de Parkinson/epidemiologíaRESUMEN
PURPOSE: Psychosis is very common in later stages of Parkinson's disease (PD) patients, but its prevalence in newly diagnosed patients is not rare. The use of antipsychotics in PD patients is complex given their association with worsening Parkinsonian motor symptoms and increased mortality rate. This study aims to examine factors that affect the use of antipsychotics in newly diagnosed PD patients and to identify changes in prescribing over time. PATIENTS AND METHODS: The Secure Anonymized Information Linkage (SAIL) databank was used to identify a cohort of newly diagnosed PD patients aged 40 years and older in Wales. The cohort was longitudinally examined over 17 years to determine the incidence of new antipsychotic use. Logistic regression models were used to analyze the data and were adjusted for several potential confounding variables. RESULTS: A total of 9142 PD patients were identified after applying inclusion and exclusion criteria, of whom 58.6% were male. During the first year of PD diagnosis, 12% of the patients developed psychosis and were prescribed antipsychotics. Quetiapine was the most commonly prescribed (49%), followed by risperidone (10.7%). The use of antipsychotics in newly diagnosed PD patients was significantly lower in the years 2009-2016 compared to 2000-2008 (OR 0.37, 95% CI 0.32-0.43). Other significant prescribing factors included patient's age and history of dementia. CONCLUSION: A dramatic decline in antipsychotic use was identified across years, showing adherence to warnings against use of antipsychotics for PD patients. Given that psychosis is prevalent in PD patients, the continuous assessment of the safety risks of antipsychotics is a matter of priority.
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PURPOSE: During examinations, many students use various over-the-counter (OTC) drugs to improve their concentration or treat exam-related medical symptoms. The purpose of this study was to scrutinize the use of OTC drugs during examinations in Saudi Arabia. MATERIALS AND METHODS: A cross-sectional study was designed, consisting of online, self-administered questionnaires comprising 27 items, including the awareness, knowledge, and attitude of students toward OTC drug use during examinations. A logistic regression model was fitted to determine factors that predict OTC drug use. The data were analyzed using Statistical Package for Social Science (SPSS). RESULTS: A total of 463 (92.6%) completed questionnaires were received from 500 recruited participants. Among participants, 58.5% were women, 47.9% were 22 years or older and completing their final year of study, and 44.1% of students preferred not to disclose their monthly income. The most common cause (35.6%) for OTC drug use during the examination period was headache, followed by pain (21%), fever (16.6%), and cough (8.2%). The most commonly used medication were painkillers, antipyretics, cough and cold medications, and vitamins (57.2%, 16.4%, 11%, and 7.3%, respectively). Male students showed a significant lack of awareness and knowledge regarding the safety and reasons for OTC drug use compared with their female counterparts and were less likely to read the medication leaflet before use (p < 0.001, odds ratio [OR]: 0.36, confidence interval [CI]: 0.23-0.57) and did not know which drugs require prescriptions (p < 0.001, OR: 0.41, CI: 0.27-0.63). Other significant factors that predicted OTC drug use included age, university level, and drug income. CONCLUSION: The most common reported cause for OTC drug use during examinations among students was headache. Sex, age, university level, and monthly income were significant factors affecting OTC drug use during examinations.
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First line treatment for Parkinson's disease (PD) is typically either L-dopa or a non-ergot dopamine agonist (DA). However, the options for the treatment of motor symptoms in PD patients have increased in the last thirty years, which have seen several new classes of PD medications introduced onto the market. The purpose of this study is to examine the changes in first line therapy of newly diagnosed Parkinson's patients between 2000 and 2016 in Wales. A population-based study evaluated data from the Secure Anonymised Information Linkage (SAIL) Databank of residents in Wales, aged 40 years or older, newly treated with PD medications between 2000 and 2016. The data was compared across three intervals: 2000-2005, 2006-2011 and 2012-2016. Patients were classified by age at diagnosis into young: 40-60 years; mid, 61-80 years; and older >80 years. Logistic regression was undertaken to determine the predictors of PD medication prescribing. For the whole study period, the profiles of 9142 newly diagnosed PD patients were analysed. L-dopa was the most common first line therapy (80.6%), followed by non-ergot DAs (12.9%) and monoamine oxidase B (MAO-B) inhibitors (7.9%). Odds of L-dopa prescribing were greater in patients >80 years (OR = 20.46 95%CI: 16.25-25.76) and in the period 2012-2016 (OR = 1.98 95% CI: 1.70-2.29). Prescribing of non-ergot DAs significantly declined in 2012-2016 (OR = 0.42 95% CI: 0.35-0.49). Additional factors influencing first line therapy were deprivation, presence of diabetes and prior use of antidepressants. For example, PD patients residing in the least deprived area were less likely to be prescribed L-dopa compared to patients residing in the most deprived area (OR = 0.77 95% CI: 0.65-0.93). First line therapy in PD in Wales has undergone a significant switch towards L-dopa over the last 16 years. The data indicates reasonable compliance with guidelines on efficacy and safety issues related to Parkinson's medications.
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Since the discovery of levodopa (L-dopa) in 1967, the range of medications available to treat Parkinson's disease has increased significantly and guidance on the use, efficacy, and safety of these medications has evolved. To assess levels of adherence to national prescribing guidelines and awareness of changes in the efficacy and safety data published in the profiles of medications for the treatment of PD, we have reviewed studies on patterns and determinants of prescribing PD medications conducted in the last 50 years (since the discovery of L-dopa). A systematic literature review was conducted using EMBASE (1967 to March, 2018), Ovid MEDLINE(R) ALL (1967 to March 16, 2018), PsycINFO (1967 to the 2nd week of March, 2018), and PubMed to identify all studies measuring prescribing patterns of PD medication between 1967 and 2017. Study design, source of data, country, year of study, number of patients and/or prescriptions, unit of analysis, prescribing determinants, and percentage utilisation of PD medications were extracted where possible. 44 studies examining prescribing patterns and/or prescribing determinants across 17 countries were identified. Unsurprisingly, L-dopa was the most commonly prescribed medication in all studies, accounting for 46.50% to 100% of all prescriptions for PD. In several studies, the prescribing rate of ergot-derived dopamine agonists (DAs) decreased over time in concordance with guidance. In contrast, the prescribing rates of non-ergot DAs increased over the last ten years in most of the included studies. In examining prescribing factors, two major categories were exemplified, patients' factors and prescribers' factors, with patients' age being the most common factor that affected the prescription in most studies. In conclusion, L-dopa is now the most commonly prescribed medication for cases of PD but there is large variation in the prescribing rates of catechol-O-methyltransferase (COMT) inhibitors, monoamine oxidase B (MAO-B) inhibitors, amantadine, and anticholinergics between countries. New studies examining the effects of recent clinical trials and measuring the prescribing rates of newly approved medications are warranted.