Journal of clinical pharmacy and therapeutics
-
Interindividual variability in drug responses may be attributable to genetically determined alteration in enzyme activity. In this study, we investigated the association between cytochrome P450 3A4 (CYP3A4) genetic polymorphisms and post-operative fentanyl requirements. ⋯ CYP3A4*4 and CYP3A4*5 are rare in the Malaysian Malay population. Genetic polymorphism of CYP3A4*18 may not play an important role in influencing postoperative fentanyl requirements.
-
Adherence to evidence-based drug therapy after acute myocardial infarction has increased over the last decades, but is still unsatisfactory. Our objectives are to set out to analyse patterns of evidence-based drug therapy after acute myocardial infarction (AMI), and evaluating socio-demographic differences. ⋯ The availability of information systems offers the opportunity to monitor the quality of care and identify weaknesses in public health-care systems. Our results identify specific factors contributing to non-adherence and hence define areas for more targeted health-care interventions. Our results suggest that efforts to improve adherence should focus on women and older patients.
-
Morphine is used routinely in clinical practice to manage moderate to severe pain, whereas levomepromazine is commonly used at low doses to manage intractable nausea and vomiting. While it has been reported that an injection combination of morphine sulphate (0·5 mg/mL) and levomepromazine (0·1 mg/mL) was physically compatible, data on the chemical stability of combinations of these drugs has not been reported. Thus, a method was required for the assessment of the stability of morphine sulphate/levomepromazine hydrochloride combinations. ⋯ Morphine sulphate was stable under all storage conditions, but the degree of degradation of levomepromazine hydrochloride increased as the storage temperature increased. The disappearance of levomepromazine hydrochloride was correlated with the appearance of a sulphoxide degradant. WHAT IS NEW CONCLUSION: The injection combinations of morphine sulphate and levomepromazine hydrochloride were shown in the current study to have a limited storage life with respect to their levomepromazine hydrochloride content.
-
Long-acting injectable (LAI) antipsychotics are recommended for those people with a preference for this form of treatment and those who experience negative outcomes due to non-adherence with oral medication. LAI antipsychotics have been associated with improved outcomes and lower treatment discontinuation rates when compared with oral formulations. Risperidone long-acting injection (RLAI) treatment is effective and well-tolerated in clinical trials. The aim of this study was to review RLAI prescribing practice and compare prescribing to best practice recommendations (including indication, initiation, dose and co-prescribing) for adults receiving care from five clinical practice settings of New Zealand. ⋯ To our knowledge this is the largest multi-site explicit review of RLAI use in real world clinical practice. The review found that clinicians were using RLAI in clinical practice predominantly in accordance with best practice recommendations. However, high rates of antipsychotic co-prescribing with RLAI were identified which differ from practice reported in other small reviews of RLAI use and local studies of antipsychotic prescribing. We have demonstrated that clinical audit of practice is a powerful tool to identify areas of potentially poor practice, such as ongoing high rates of antipsychotic co-prescription cross-sectionally and 12 months after RLAI initiation and that this is an area of practice requiring further evaluation. Feedback to clinicians and stakeholders followed by re-audit of practice is needed in order to complete the audit cycle.
-
Case Reports
Dark green discoloration of the urine after prolonged propofol infusion: a case report.
Propofol, a commonly used sedative, has on rare occasions, been reported to discolour urine green. However, in previous reports, it is uncertain that whether this colour change is dose dependent. We report on a patient who produced dark green discoloration of urine from prolonged propofol infusion, administered for intractable epilepsy. ⋯ Green discoloration of the urine from propofol infusion is dose dependent. It is usually benign and reversible, as was the case for our patient.