AIM: This study aimed to examine the rate of compliance towards the requirements of LDM among retail pharmacies (RPs) and private medical clinics (PMCs).
METHODS: A cross-sectional study was conducted from April 2019 to January 2020 across all inspected premises in Sarawak. Publics who attended RPs and PMCs and having medicines dispensed, have their medicine labels examined for compliance towards the requirements of LDM upon exiting the premises. Their verbal consents were obtained and the compliance score were recorded into self-developed data collection forms. Compliance rate was the percentage of requirements on the examined medicine labels that fulfil the requirements under Regulation 12 of Poisons Regulations 1952.
RESULTS: A total of 414 LDM were examined, with 135 from RPs and 279 from PMCs. The full compliance towards the requirements of LDM among RPs and PMCs were 23.7% and 41.6%, respectively. The median compliance score of PMCs (0.83) was significantly higher (P<0.001) than RPs (0.67). The requirements of LDM with the lowest compliance was name of medicine (53.1%), followed by name of patient (31.9%) and date of dispensing (25.6%).
CONCLUSION: The full compliance rate on the requirements of LDM among RPs and PMCs were low. More stringent enforcement and public education on their rights for fully compliant medicine labels could improve the compliance.
OBJECTIVE: Aim of the present study was to analyse the molecular interaction of nitrogen heterocyclic based drugs (hydroxychloroquine, remdesivir and lomefloxacin) with various SARSCoV- 2 proteins (RdRp, PLPro, Mpro and spike proteins) using a molecular docking approach.
METHODS: We have performed docking study using PyRx software, and Discovery Studio Visualizer was used to visualise the molecular interactions. The designed nitrogen heterocyclic analogues were checked for Lipinski's rule of five, Veber's Law and Adsorption, Distribution, Metabolism, and Excretion (ADME) threshold. After obtaining the docking results of existing nitrogen heterocyclic drugs, we modified the selected drugs to get molecules with better affinity against SARS-CoV-2.
RESULTS: Hydroxychloroquine bound to RdRp, spike protein, PLPro and Mpro at -5.2, -5.1, -6.7 and -6.0 kcal/mol, while remdesivir bound to RdRp, spike protein, PLPro, and Mpro at -6.1, -6.9, -6.4 and -6.9 kcal/mol, respectively. Lomefloxacin bound to RdRp, spike protein, PLPro and Pro at -6.4, -6.6, -7.2 and -6.9 kcal/mol. ADME studies of all these compounds indicated lipophilicity and high gastro intestine absorbability. The modified drug structures possess better binding efficacy towards at least one target than their parent compounds.
CONCLUSION: The outcome reveals that the designed nitrogen heterocyclics could contribute to developing the potent inhibitory drug SARS-CoV-2 with strong multi-targeted inhibition ability and reactivity.