RESUMO
Background: WHO estimates that 15.8% of substandard or falsified medical products are used to treat non-communicable diseases which account for 80% of the global burden including diabetes. The increased level of use of metformin hydrochloride tablets in clinical practice creates the need to monitor and ascertain the quality of the various brands available in the drug market for quality control assessment and generic substitution. This study aims to assess the pharmaceutical quality of seven brands of metformin tablets circulating in pharmacy outlets in Gondar City, North West Ethiopia. Methods: Official Pharmacopoeia tests such as uniformity of weight, disintegration, assay, and dissolution tests were used to assess the physicochemical quality control parameters of metformin hydrochloride tablet brands. The unofficial tests conducted included crushing strength/hardness and friability. Results: In all seven tests, the tested brands passed the BP official tests for uniformity of weight, friability, disintegration, and dissolution. Each product had a friability of less than 1% with a maximum of 0.385%. In contrast, none of the brands passed the non-official hardness test. Each product disintegrated in seven to twelve minutes, meeting the USP standards. Drug release rates in 45 min ranged from 78.9 to 92.6%, and drug content results were within the USP guidelines (96.55-102.76%). Conclusion: The current study demonstrated that all seven brands of metformin hydrochloride 500 mg tablets adhered to the quality control parameters specified in the pharmacopeia, except for the hardness test across all brands.
RESUMO
BACKGROUND: Medical students experience significant psychological stress and are therefore at higher risk of using sedatives. There are currently no studies describing the prevalence of sedative drug use among medical students in Ethiopia. This study aimed to assess the prevalence and associated factors of self-reported sedative drug use among medical students attending the College of Medicine and Health Science (CMHS) students at the University of Gondar (UoG). MATERIAL AND METHODS: A prospective cross-sectional study was conducted from May to July 2018 in CMHS at UoG. Data were collected using a pre-tested self-administered standard questionnaire. Data were collected, entered into a computer using Epi Info 7 software, and analyzed using SPSS version 20. Frequency, mean, and standard deviation were used to describe descriptive statistics, and binary and multiple logistic regression analyses were used to assess the association between different variables and sedative drug use; P <0.05 was used to declare association. RESULTS: Of the 422 students who returned questionnaires, 26 (6.2%) participants were reported sedative drug use at some time since enrollment. Of these, 61.54% participants used antihistamine drugs. Smoking status (AOR (95% CI), 0.046 (0.009-0.241) P = 0.0001), stimulant use (AOR (95% CI), 0.220 (0.062-0.780) P = 0.019), sleeping hour (AOR (95% CI), 9.931 (4.155-14.785) P = 0.001) and sleep disorder (AOR (95% CI), 0.149 (0.033-0.680) P = 0.014) were significantly associated with sedative drug use. CONCLUSION: Self-reported sedative drug use among medical students at the University of Gondar is relatively low, and antihistamines are the most commonly used drugs. Smoking, stimulant use, sleeping hour, and the presence of sleep disorders were associated with sedative drug use.
