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Medicines information and adherence in HIV/AIDS patients

JOURNAL OF CLINICAL PHARMACY & THERAPEUTICS, Issue 1 2006
L. E. Mansoor BPharm
Summary Background:, Providing written medicines information is being legislated in an increasing number of countries worldwide, with the patient information leaflet (PIL) being the most widely used method for conveying health information. The impact of providing such information on adherence to therapy is reportedly unpredictable. Therapy for human immunodeficiency virus/acquired immune deficiency syndrome (HIV/AIDS) and related opportunistic infections usually involves polytherapy and complex regimens, both of which are risk factors for non-adherence. The objective of this study was to assess the impact of medicines information on adherence to chronic co-trimoxazole therapy in low-literate HIV/AIDS patients. Methods:, Two different PILs were designed for co-trimoxazole tablets and were available in both English and isiXhosa. Participants were randomly allocated to a control group (receiving no PIL), group A (receiving a ,complex PIL') and group B (receiving a ,simple PIL' incorporating pictograms). At the first interview, demographic data were collected and the time, date and day that the participant would take his/her first tablet of the month's course was also documented. In a follow-up interview adherence to therapy was assessed using two methods; self-report and tablet count. Results:, The medicines information materials incorporating simple text and pictograms resulted in significantly improved adherence to therapy in the short term, whereas a non-significant increase in adherence was associated with the availability of the more complex information. This was shown by both the self-reported assessment as well as the tablet count. Conclusion:, This research suggests that appropriately designed written material can have a positive impact in improving adherence and, together with verbal consultation, are essential for enabling patients to make appropriate decisions about their medicine taking. [source]

Consumer use of the internet for medicines information

INTERNATIONAL JOURNAL OF PHARMACY PRACTICE, Issue 4 2004
Ms. Geraldine Peterson-Clark Phd student
Objective To explore consumer opinion of the internet as a source of medicines information, the reasons consumers use this information, and the impact of this information on their use of medicines. Method Focus groups (n=6) were conducted in metropolitan Sydney, Australia during March to May 2003 with consumers (n=46) who had used the internet for medicines information. Key findings Although participants expressed some concerns about the quality of internet-based medicines information (IBMI), the convenience of access to this information outweighed these reservations. Attitudes were thus positive overall. Participants used IBMI when preparing for doctors' visits, for second opinions and additional information, for information on current issues, when deciding whether to use a medicine, for comparative information on brands and generics, and when written information was not supplied by health professionals. Most participants felt empowered by the information they found and used it to play a more active role in decision making about their therapy. Conclusion This study describes various issues associated with consumer use of IBMI and highlights the possible role of pharmacists to support their patients' efforts to access and interpret medicines information. [source]

Medicines information and adherence in HIV/AIDS patients

Latest news and product developments

PRESCRIBER, Issue 23-24 2007
Article first published online: 8 JAN 200
Cervical cancer risk falls after COC use ends Combined oral contraceptives (COCs) are associated with a slight increase in the risk of cervical cancer but this diminishes with time after use ends, an international study has shown (Lancet 2007;370:1609,21). Analysis of data for 16 573 women with and 35 509 women without cervical cancer confirmed that using a COC for 10 years between the ages of 20 and 30 increases the incidence of invasive cervical cancer from 3.8 to 4.5 per 1000 by age 50. However, the excess risk disappears 10 years after cessation of use. , A new analysis of the US Nurses' Health Study suggests that protection against ovarian cancer does not persist beyond 20 years after cessation of COC use. This study also showed that tubal ligation is associated with reduced risk of ovarian cancer (Am J Epidemiol 2007; 166;894,901). Pharmaceutical services fund moves to PCTs The ,global sum' that provides central funding for NHS pharmaceutical services is being shifted to PCTs. The Government has included legislation for the change in the recent Health and Social Care Bill. The fund pays the fees and allowances for pharmacy contractors and appliance contractors. The Government says this is a ,natural progression and in keeping with moves to devolve NHS funds to the frontline' that will enable PCTs to manage pharmacy services better by ,encouraging best prescribing practice'. Fewer fluoroquinolones in the community Restricting prescribing of fluoroquinolone antibacterials does not increase hospital admissions for infection among older people, say Canadian researchers (Am J Med 2007;120:893,900). Their analysis of an Ontario medical database shows that, in a community where fluoroquinolones were the most widely prescribed antibacterials, a one-third reduction in prescribing was not followed by an increase in hospital admissions for infectious episodes in the over,65s. On the contrary, there was a 32 per cent reduction in admissions for gastrointestinal conditions. FDA reports increased TB risk with infliximab The US Food and Drug Administration has published an analysis of cases of TB associated with infliximab (Remicade) detected via its spontaneous adverse event reporting scheme (Ann Intern Med 2007;147: 699,702). In 2001 the FDA placed a warning about the risk of TB on product labelling for infliximab and advised testing for TB before initiating treatment. This analysis of 130 cases of TB since reported in patients treated with infliximab found that 45 per cent had developed extra-pulmonary disease; risk factors included use of immunosuppressants (including methotrexate), a history of TB and time spent in an endemic area. Of 67 cases in which treatment was initiated after the warning was issued, 34 with a negative tuberculin skin test developed TB after receiving infliximab. MHRA announces anticounterfeit strategy The UK is a transit point, distribution hub and end-user of counterfeit medicines, says the MHRA in its first anti-counterfeiting strategy (www.mhra.gov.uk). Counterfeits have been detected in the legitimate supply chain with increasing frequency since 2004, resulting in nine batch recalls and a further five incidents detected at wholesale level. The MHRA's proposed approach includes: communication to raise awareness of the risk and facilitate reporting, collaboration with the WHO, the industry and law enforcement agencies, and targeted surveillance, prosecution and regulation. Evidence lacking for choosing DMARD There is insufficient evidence to choose one DMARD or biological agent over another in patients with RA, US investigators say (www.annals.org/cgi/content/abstract/0000605,20080115000192v1). Their systematic review of meta-analyses and intervention and observational trials found no evidence of differences among DMARDs or anti-TNF agents. Mono-therapy with an anti-TNF agent was associated with superior radiographic but not clinical outcomes; methotrexate plus an anti-TNF agent was superior in clinical and functional terms to either drug given alone. Be alert to psychiatric ADRs with rimonabant Clinicians should remain alert for the development of anxiety, depression and an increased risk of suicide with rimonabant (Acomplia), say Danish investigators (Lancet 2007;370:1706,13). Their meta-analysis of four randomised trials involving a total of 4105 patients showed that rimonabant was associated with an increased risk of serious adverse events (odds ratio 1.4; number needed to harm, NNH, 59), including a 2.5,fold increased risk of depression (NNH 49) and a threefold increased risk of anxiety (NNH 166). Following a warning from the FDA of an increased risk of suicide with rimonabant, the authors say their findings indicate a need for ,increased alertness by physicians to these potentially severe psychiatric adverse reactions'. New strategy for NHS medicines information The UK Medicines Information Service (www.ukmi.nhs.uk) has published its new management strategy setting out how it will respond to recent developments in the NHS. Developments include greater access to information for patients, support for nontraditional prescribers and new commissioning arrangements. New antiretroviral Maraviroc (Celsentri) is the first CCR5 antagonist to be introduced for the treatment of HIV infection. CCR5 is one of two co-receptors to which the HIV virus must attach to achieve cell entry. Maraviroc is licensed for use by treatment-experienced patients in whom only CCR5-tropic HIV-1 is detectable. The recommended dose ranges from 150 to 600mg twice daily depending on interactions with concurrent medication. Dimeticone superior Dimeticone 4 per cent lotion (Hedrin) is superior to malathion 0.5 per cent in the eradication of head lice, a UK study in 58 children and 15 adults has shown (PLoS ONE 2007;2: e1127. doi:10.1371/journal.pone. 0001127). Two applications of dimeticone lotion one week apart cleared active infestation in 70 per cent of participants compared with 33 per cent in those who used a single application of malathion. Copyright © 2007 Wiley Interface Ltd. [source]