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PubMed1998

Nonformulary drug requests at an academic hospital in Germany--the role of general practitioners' long-term medication.

OBJECTIVE: To determine the influence of general practitioners' outpatient medication on nonformulary drug requests in university hospitals. METHODS: During a period of 1 year every nonformulary drug request at the Göttingen University Hospital was analysed (reason for request, drug class). A second analysis examined whether the introduction of a new order form that allowed the prescribing physician to mark a box to declare that this request is due to general practitioner's outpatient therapy influenced the rate of requests. RESULTS: During 12 months a total of 6,281 nonformulary drugs were ordered from the pharmacy, 1,077 (17.1%) of them because of outpatient medication. The percentage of requests according to general practitioners' outpatient medication was about 11% in both the medical and the surgical departments. The rate was rather high in the departments of psychiatry and orthopaedic surgery (39% and 60%, respectively). With the introduction of the new order form, there was a significant increase in the general practice based rate of nonformulary requests on the general surgical wards (from 10.8% to 19.9%). Only a minority of requests (14%) represented drugs of unproven efficacy. CONCLUSION: Since nonformulary requests attributable to previous outpatient medication accounts for less than 20% and since only a minor portion of them lack scientific proof of efficacy we suggest that hospital doctors and clinical pharmacologists should avoid a drug policy, which is too restrictive, and support maintenance of chronic medication initiated by general practitioners. Especially in the department of psychiatry, nonformulary requests seem to be justified by patient needs.

Drug Prescriptions↗
PubMed2001

The effect of formulary restriction in the use of antibiotics in an Italian hospital.

OBJECTIVE: To compare the expenditure and usage of antibiotics at the San Martino Teaching Hospital, a 2500-bed hospital in Genoa, Italy, before and after the implementation of an antibiotic control program that streamlined the hospital formulary and the creation of a restricted group of antibiotics requiring approval before use. METHODS: Usage and expenditure data for all antibiotics were collected from 1996 to 1998. Antibiotic usage was standardised by defined daily doses (DDDs) per 100/patient-days. Cost data were expressed in Euros. Changes in antibiotic usage was determined by comparing the mean usage during 1996 and 1997, the period before the implementation of the antibiotic control program, to 1998 when the streamlined formulary and restricted group of antibiotics, controlled by the Infectious Disease Team (IDT). were initiated. The Wilcoxon rank sign test was used to determine statistical significance of the changes in overall antibiotic use; a P value of less than 0.05 was considered significant. RESULTS: After the implementation of the antibiotic control program, overall antibiotic usage decreased by 8.5%, 28.00 DDD/100 patient-days during 1996-1997 to 25.62 DDD/100 patient-days during 1998. The control program resulted in overall savings of 342,927 Euros after the first year of implementation. The usage and expenditure in the restricted group of antibiotics decreased by 78.5% and 53.5%, respectively, (P=0.03). Restricting the use of ceftazidime and imipenem accounted for the majority of the decreased usage and savings. In the non-restricted group of antibiotics, usage increased only by 32.6% resulting in a net reduction of 46.3% in all antibiotic use. CONCLUSION: Although antibiotic control programs have been successful in other countries, this represents the first attempt at successful antibiotic control in a large Italian teaching hospital. Streamlining the formulary to control antibiotic choices and the creation of a restriction program using the expertise of infectious disease physicians resulted in significant reductions in the use of and expenditure for antibiotics.

Anti-Bacterial Agents↗
PubMed2001

Assessment of indicators for hospital drug formulary non-adherence.

BACKGROUND: Translation of rational drug therapy into practice remains an international problem. Although pharmacotherapeutic treatment guidelines (PTGs) as managerial tools are favoured over hospital drug formularies (HDFs), the latter are still applied in most hospitals. HDF enforcement often leads to time-consuming consultation from the perspective of both pharmacy staff and prescriber. So far, research on HDFs has only been conducted outside Europe. Moreover, this research has only been descriptive. Straightforward indicators qualitatively characterising HDF non-adherence have never been assessed. METHODS: A retrospective 1:1 case-control study was conducted across three general teaching hospitals. Non-HDF requests were compared with HDF requests. Data were multivariably analysed, considering patient, prescriber, drug, and HDF characteristics as possible indicators for non-adherence. RESULTS: HDF adherence was almost universal across characteristics. Non-adherence was characterised by newly marketed drugs, drugs that were part of patients' pre-admission drug therapy, drugs with many fellow drugs within the drug group on the market, and drugs originating from a drug group for which the HDF was highly restrictive. Contrary to common perception, non-adherence was independent of medical specialty, therapeutic area, and patient characteristics. CONCLUSION: This research provides an epidemiological framework for hospitals (drug and therapeutics committees) for evaluating pharmacy data on HDF non-adherence. It can be used for educational tailor-made feedback to prescribers and for drug selection when the inclusion of newly marketed drugs is considered or HDF restrictiveness for certain drug groups is reconsidered. Moreover, it demonstrates the importance of a regional approach involving secondary and primary health care to establish continuity in seamless care of drug therapy.

Data Collection↗
PubMed2005

Impact of a fluoroquinolone formulary change on acquisition of quinolone-resistant gram-negative bacilli.

Rising rates of fluoroquinolone resistance in bacteria have been associated with increased fluoroquinolone use. In vitro data show differences in potency among fluoroquinolone antibiotics against gram-negative bacteria and have led to the hypothesis that rates of selection of resistant microorganisms may be affected by the choice of the specific fluoroquinolone. Because clinical data to prove this hypothesis are lacking, the aim of the present study was to determine rates of acquisition of quinolone-resistant gram-negative bacilli (QRGNB) in the fecal flora of medical intensive care unit patients before and after a formulary change from ciprofloxacin to levofloxacin. Unadjusted rate ratios for acquisition of QRGNB were 1.09 (95%CI, 1.02-1.16) for each day of ciprofloxacin use and 1.01 (95%CI, 0.87-1.17) for each day of levofloxacin use. Following adjustment for other antibiotic use, enteral feeding, APACHE II score, and nursing home admission, neither ciprofloxacin nor levofloxacin use was associated with acquisition of QRGNB. In conclusion, a formulary change from ciprofloxacin to levofloxacin was not significantly associated with an increased risk of acquisition of QRGNB.

Anti-Bacterial Agents↗
PubMed1987

Antibiotic cost savings from formulary restrictions and physician monitoring in a medical-school-affiliated hospital.

Strictly enforced formulary restrictions for aminoglycosides, cephalosporins, and a vancomycin group generated combined savings of $2.61 (p less than 0.0046) per antibiotic day and $34,597 (p less than 0.0003) per month. Even after some cost increases (not significant) in new and other antibiotics, the program saved $1.33 (p less than 0.0175) per antibiotic day and $24,620 (p less than 0.0311) per month for all antibiotics. The pharmacy's 1985 average cost per antibiotic day and its monthly expenditures were $18.45 and $199,003, respectively. In the months following the formulary restrictions, no significant detrimental changes occurred in hospital length of stay or mortality. A retrospective analysis of 322 patients with bacteremia treated before and after the onset of the controls revealed that antibiotics were more appropriately used afterwards.

Aminoglycosides↗
PubMed1990

Antibiotic sensitivity and the prescribing information sheet: assisting the prescribing physician.

The concept conceived 5 years ago is now a reality. Physicians have information readily available for empiric prescribing from the home, office, or hospital. The other two hospitals in the city have implemented the systems. The reaction of physicians has been extremely favorable. In fact, two new publications for the outpatient/community and for the pediatric populations are now under way at the suggestion of physicians. Plans are in place to assess physician satisfaction and use of the information sheet within the coming year. Presently, too little time has passed to evaluate whether changes in prescribing have actually occurred. In fact, it may never be possible to identify how many instances of inadvisable prescribing are prevented with good initial information. However, for the relatively low cost involved, this has been an exciting new opportunity for education, as well as a method to promote cost-effective and appropriate antibiotic therapy.

Anti-Bacterial Agents↗
PubMedDate not supplied

Selection of antimicrobial agents for routine testing in a clinical microbiology laboratory.

Each clinical microbiology laboratory must establish its own standard battery of antimicrobial agents to be tested routinely on clinical isolates of various organism groups. Some choices are based upon the intrinsic activities of antimicrobial agents for a particular group of organisms, for example, agents primarily active against either Gram-positive or Gram-negative bacteria. For final selection of limited batteries of agents for routine testing, however, it is necessary to use additional criteria based upon physician prescribing patterns and the availability of antimicrobial agents in a particular institution. A fundamental principle in the selection process should be routine testing and reporting of those antimicrobial agents that physicians actually use, that is, the institution's formulary agents. Testing of the most appropriate drugs for an institution may be complicated by lack of availability of some antimicrobial agents among the standard panels offered by automated instrument or commercial test system manufacturers. The laboratory should develop its final test batteries in consultation with the infectious disease and pharmacy services and the pharmacy and therapeutics and infection-control committees of the medical staff. These choices should not be made based upon the most convenient selection of drugs from the laboratory's perspective or based upon pharmaceutical industry promotional efforts.

Anti-Bacterial Agents↗
PubMedDate not supplied

Formulary control of antimicrobial usage. What price freedom?

Formulary controls are the most common and probably the most effective method for controlling abuse of antimicrobial agents in hospitalized patients. Such programs may include restriction of both the number of agents available and the way these agents may be used. These programs have been demonstrated to control pharmacy expenditures. Other potential advantages include reductions in the incidence of adverse drug reactions and the antimicrobial resistance among the hospital flora, and improvements in the overall quality of prescribing of antimicrobials. There are few data to document such benefits, however. Potential disadvantages are also poorly documented but include inconvenience for prescribing physicians, increased administrative costs, prescribing errors, and increased antimicrobial resistance. Antimicrobial control programs will likely remain common, but the availability of new information technologies should enable a transition to systems based on concurrent assessment of antimicrobial appropriateness with immediate feedback to the prescribing physician.

Anti-Bacterial Agents↗
PubMedDate not supplied

A team approach to hospital formulary replacement.

A multidisciplinary antibiotic review team (MART) was implemented to improve patient care and reduce antimicrobial expenditures. MART consists of pharmacists and infectious disease (ID) physicians reviewing patients three times weekly. Antibiotic expenditures were reduced by recommending conversions to therapeutically equivalent antibiotics, conversion to an oral agent, and completion of treatment with home infusion therapy. In addition, MART proposed therapeutic interchanges from ceftriaxone to cefotaxime to the P and T committee. ID physician or pharmacist offered recommendations and initiated order changes if the attending physician agreed. Annualized savings was $74,371, with 40% of the recommendations resulting in an improved antimicrobial therapy.

Anti-Bacterial Agents↗
PubMedDate not supplied

Econotherapeutics.

A program that represents the efforts of a hospital pharmacy management company to control drug costs is described. The program, Econotherapeutics, was developed in response to a changed health care reimbursement system that focused on the costs of products rather than the revenue generated by these products. For antimicrobial agents, a hospital-specific antibiogram is used to encourage cost-effective prescribing. A pharmacist intervention program, medical staff presentations, drug usage evaluation, management systems, and educational programs for pharmacists are all essential parts of the program. Centralized data gathering has allowed cost comparison of specific antimicrobial agents so that differences between variable cost estimates and costs based on actual use can be evaluated. Actual dose and dosage interval were used to calculate average cost per treatment day in a 121-hospital sample. Our cost data support the choice of cefotaxime over ceftriaxone.

Anti-Bacterial Agents↗
PubMedDate not supplied

Selection of cephalosporins for hospital formularies.

Because of the large number of cephalosporins available for use, and for economic reasons, most hospitals have restricted the number of cephalosporins for inclusion on hospital formularies. No more than one first-generation oral and parenteral cephalosporin is necessary. The second- and third-generation oral cephalosporins are more active in vitro against Haemophilus influenzae and Enterobacteriaceae, and the selection of one of these drugs should be based primarily on acquisition cost. There is usually minimal, if any, need for a second-generation parenteral cephalosporin on hospital formularies. The choice of a single third-generation parenteral cephalosporin should be made primarily on the cost of equivalent daily dosages. A single antipseudomonal cephalosporin should be included in the hospital formulary, and the selection should be based on cost and availability.

Administration, Oral↗
PubMed1996

Clinical outcome of a mandatory formulary switch for dihydropyridine calcium channel blocker therapy at a Veteran's Administration Medical Center.

Recently, changes in antihypertensive therapies with similar properties have been made based primarily on cost savings for hospital formularies. To assess blood pressure (BP) control and adverse side effects associated with a switch of patients on nifedipine GITS to felodipine at our Veteran's Administration Medical Center (VAMC), we prospectively studied physician records and patient-reported side effects (both from the medical record and patient questionnaires) in 127 hypertensive patients (70 +/- 10 years, 95% men, 88% nonblack, 44% with coronary disease) who underwent the forced switch in therapy. During the period of patient visits/chart review, physicians were unaware that the study was being conducted. A minimum of 2 months and two visits on each therapy was required for patient inclusion. The mean doses of nifedipine GITS and felodipine used were 55 +/- 24 mg/day and 8 +/- 2.6 mg/day, respectively. The use of supplemental antihypertensive agents was similar in both calcium channel blocker groups. Systolic BPs and heart rates were similar in patients taking the two drugs, and the diastolic BP was modestly lower in patients taking felodipine (78 +/- 10 mm Hg for felodipine and 80 +/- 10 mm Hg for nifedipine, P < .05). There were no differences in the incidence of side effects (both patient-reported and provider-reported) for the two antihypertensive therapies. These data demonstrate that in an hypertensive population followed in a VAMC, mandatory switching of stable dihydropyridine calcium channel blocker therapy did not result in any significant changes in short-term (2 to 3 months) BP control nor were adverse side effects different based on both physician- and patient- reported sources of information.

Aged↗
PubMedDate not supplied

Experience with a drug formulary in a large Italian city hospital.

The preparation and distribution of a drug formulary, providing some 377 pharmacological entities together with significant general information, in a large city hospital, enabled the collection of data on the pattern of drug use in this setting. Out of the 377 selected drugs, 27 were never used in the course of one year: most notable among these were the cephalosporin cephalothin, the antifungal griseofulvin, piperazine and the leading anti-H1-blocker terfenadine. Thirteen pharmaceutical preparations were used in over 50,000 doses; among these were the amiloride + hydrochlorothiazide combination, co-trimoxazole and lorazepam. Examination of specific drug series, e.g. of cephalosporins, showed a clear preference for the longer acting ceftriaxone versus a minor use for oral agents, e.g. cefadroxil. There was a wide choice of cardiovascular agents and a relative stability in the preference for major and minor antipsychotics. Outside of the formulary list, only a small number of preparations were requested, among these some traditional analgesic combinations and some extractive products. The provision of a hospital formulary may, in some way, modify drug choice in the hospital, although some established patterns of use are difficult to change. On the other hand, some interesting information was provided on the criteria of choice of hospital physicians.

Formularies, Hospital as Topic↗
PubMed2006

Prescribing to older ED patients.

The purpose of this article is to assist emergency physicians in selecting safe and effective drug therapy for seniors. Because safer alternatives exist, medications on the Beers list of potentially inappropriate medications should generally be avoided. We also review risks associated with several classes of medications: nonsteroidal anti-inflammatory drugs, benzodiazepines, and anticholinergic medications. They are associated with adverse outcomes when taken by older adults and should be used with caution. We also address the use of opioid medications in seniors. Although they are not without risk, opioids are generally safe with slow titration, precautions, and a bowel regimen to prevent constipation. Prescribers should also consider the need for estimating creatinine clearance when prescribing medications that require dosage adjustment in the setting of renal insufficiency. Two areas in need of research are identifying the proper dosing and safety of medications in seniors and prescribing with electronic decision support to assist in prescribing decisions.

Aged↗
PubMed2004

Impact of a formulary switch from ticarcillin-clavulanate to piperacillin-tazobactam on colonization with vancomycin-resistant enterococci.

BACKGROUND: The prevalence of vancomycin-resistant enterococci (VRE) is increasing, despite infection control measures. Limited data link ticarcillin-clavulanate to higher VRE prevalence. METHODS: Active surveillance for VRE was conducted before and after a formulary switch from ticarcillin-clavulanate to piperacillin-tazobactam. Rectal swabs were obtained serially in 863 adult patients admitted to intensive care units (ICUs) between November 1, 2000 and September 30, 2004. RESULTS: In the postswitch period, 38 of 497 (7.6%) patients acquired VRE versus 42 of 366 (11.5%) patients in the preswitch period. Survival analysis showed an overall hazard ratio (HR) of .68 postswitch versus preswitch ( P = .07), with the greatest change in the surgical ICU (HR = .17, P = .006). Multivariate analysis showed an overall HR = .51 ( P = .004). Hospital-wide, nonstool VRE clinical cultures fell from 39 (.58/1000 patient days) in the 10-month preswitch period to 27 (.33/1000 patient days) in the 12-month postswitch period. Infection control practices and use of other antibiotics remained stable. CONCLUSIONS: VRE acquisition appeared to decrease in association with a formulary change from ticarcillin-clavulanate to piperacillin-tazobactam.

Anti-Bacterial Agents↗