Which is the basis for an AIDS diagnosis and a finding of medical disability. Our finding of only small differences by race ethnicity in the use of HAART within programs must be assessed in context. Medicaid income requirements are such that the lower use of HAART among Medicaid enrollees may reflect the reality of survival priorities associated with poverty. The small differences by race ethnicity with ADAP may reflect the high motivation of individuals applying for a program designed to provide AIDS drugs; differences in attitudes toward drugs might affect enrollment patterns more than ARV utilization once in the program. Within-program patterns may miss important differences in early detection and early treatment that may exist across racial ethnic communities. We hope that these findings and our project as a whole will assist in responding to the challenges posed by the disproportionate burden of HIV in communities of color.
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Testing For Dyslipidemia In Patients With Coronary Artery Disease: Evidence The evidence supporting the testing for dyslipidemia in coronary artery disease was found in practice guidelines and expert panel reports. Specific sources are cited with relevant recommendations in references at end of chapter. AHA ACC Guidelines -Preventing Heart Attack and Death in Patients with Atherosclerotic Cardiovascular Disease 2001 update ; 10 ; : Assess fasting lipid profile in all patients ATP3 30 ; : LDL-C is primary target of therapy. Low HDL cholesterol 40 mg dl ; considered major risk factor. Recommend a complete lipoprotein profile as the preferred initial test total, LDL, and HDL cholesterol and triglycerides ; . AHA ACC Guidelines for Management of Patients with Acute Myocardial Infarction 17 ; : Post-MI patients with normal cholesterol and HDL 35 mg dl despite diet may be started on drugs to raise HDL class IIa evidence, because apo lorazepam.
The neuroleptics, antidepressants, butyrophenones, serendipity and drug development, stereochemical aspects of psychotropic drugs. Synthesis of diazepam, oxazepam, chlorazepam, alprazolam, phenytoin, ethosuximde, trimethadione, barbiturates, thiopental sodium, glutethimide Antibiotics: Cell wall biosynthesis, inhibitors, -Iactam rings, antibiotics inhibiting protein synthesis. Synthesis of penicillin G, penicillin V, ampicillin, amoxycillin, chloramphenicol, cephalosporin, tetracyclin and streptomycin. References: 1. Introduction to Medicinal Chemistry, A Gringuage, Wiley-VCH. 2. Wilson and Gisvold's Text Book of Organic Medicinal and Pharmaceutical Chemistry, Ed Robert F.Dorge. 3. An Introduction to Drug Design, S. S. Pandeya and J. R. Dimmock, New Age International. 4: Burger's Medicinal Chemistry and Drug Discovery, Vol-1 Chapter.-9 and Ch-14 ; , Ed. M. E. Wolff, John Wiley. 5. Goodman and Gilman's Pharmacological Basis of Therapeutics, McGraw-Hill. 6. The Organic Chemistry of Drug Design and Drug Action, R. B. Silverman, Academic Press. 7 Strategies for Organic Drug Synthesis and Design, D. Lednicer, John Wiley.
Antacids such as Maalox, Mylanta, Tums ; , reduces the absorption and effectiveness of lorazepam Ativan ; or diazepam Valium ; if taken within 3 hours of taking lorazepam Ativan ; or diazepam Valium ; . Heartburn ulcer medications: Tagamet cimetidine ; , Pepcid famotidine ; , Zantac ranitidine ; , Prilosec omeprazole, and Nexium esomeprazole ; should not be taken within 24 hours before to 24 hours after taking diazepam Valium ; . They increase the potency of diazepam Valium ; . They do not affect lorazepam Ativan ; . Narcotic pain medications such as codeine, Vicodin, Percodan, Demerol, and others ; should not be taken within 12 hours before to 12 hours after taking lorazepam Ativan ; or diazepam Valium ; . Post-operatively, do not take any narcotic pain medication until 12 hours after you take the lorazepam Ativan ; . Nutritional supplements: St. John's Wort, Kava Kava, Gota Kola and Valerian may greatly decrease the longevity of the sedation effects of diazepam Valium ; , while potentially greatly increasing the profoundness of the sedation. Do not take these herbs for 10 days before taking lorazepam Ativan ; or diazepam Valium ; . You can resume them the next day. Do not take diazepam Valium ; if you are taking the following medications: Diltiazem Cardizem, Dilacor, Tiazac, Tiamate, Cartia, and others ; used for high blood pressure and angina Verapamil Calan, Verelan, Covera, Isoptin, Tarka ; used for high blood pressure Ketoconazole Nizoral ; used for yeast fungal infections Itraconazole Sporanox ; used yeast fungal infections Nefazodone Serzone ; used as an anti-depressant Ritonavir Norvir ; used for HIV AIDS Atazanavir Reyataz ; used for HIV AIDS Cyclosporine, Sandimmune, Neoral ; used for organ transplant rejection Diltiazem Cardizem, Dilacor, Tiazac and others ; used for high blood pressure and angina Imatinib Glivec ; used to treat leukemia Izoniazid Nydrazid ; used to treat TB Nicardipine Cardene ; used to treat high blood pressure Quinidine Quinora, Quinidex, Cardioquin ; used to treat abnormal heart rhythms Clozapine Clozaril, FazaClo ; used to treat schizophrenia Erythromycin many brands including E-mycin ; , EES, PCE ; used as an antibiotic Clarithromycin Biaxin ; used as an antibiotic Telithromycin Ketek ; used as an antibiotic Diclofenac Voltaren ; , used as prescription eye drops or pills for arthritis or cramps. Do not take lorazepam Ativan ; if you are taking the following medications: Clozapine Clozaril, FazaClo ; used to treat schizophrenia Nefazodone Serzone ; used as an anti-depressant Loxapine Loxapac , Loxitane ; used to treat schizophrenia --2.
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Comparator treatment arm, such as venlafaxine, lorazepam, or alprazolam. Pregabalin at doses of 200, 300, 400, and 600 mg day was shown, like all the active comparators, to be significantly superior to placebo in reducing symptoms from baseline to end of treatment. Adverse events commonly reported during the 4-week treatment studies included somnolence, dizziness, dry mouth, and weight gain. These adverse events were rated as mild to moderate severity. Similar tolerability has been reported with 2 times day and 3 times day dosing of pregabalin. Despite the apparent efficacy of pregabalin in treating GAD, use of this drug should be limited because it does not have a Food and Drug Administration-labeled indication for use in GAD. Evidence is inconclusive as to whether pregabalin is as effective as other available pharmacotherapeutic options. Tiagabine is another antiepileptic treatment that has been evaluated for use in patients with GAD. Like pregabalin, its use in treating anxious symptoms centers on a novel mechanistic action. Tiagabine is a selective GABA reuptake inhibitor via the GABA transporter 1. One open-label and one randomized, controlled trial with tiagabine have shown short-term efficacy in treating core anxiety symptoms of GAD. One caveat regarding the use of tiagabine is that it does not have an approved label indication by the Food and Drug Administration for treating anxiety disorders. Studies have shown an increased risk of new-onset seizures and status epilepticus with tiagabine use when taken for offlabel indications. The use of this drug should be limited until further information is available regarding safety and efficacy. Miscellaneous Drugs The efficacy of mirtazapine in the treatment of GAD has been examined. One open-label study included 44 outpatients with GAD who were treated with fixed-dose mirtazapine 30 mg day ; for 12 weeks. Nearly 80% of subjects were classified as responders at the end of the treatment period. Adverse events were not uncommon and included weight gain, sedation, dry mouth, and constipation. Adverse events accounted for 2 of 5 dropouts in the treatment group. No randomized, placebo-controlled studies of mirtazapine have been reported. One small, open-label, fixed-dose study in subjects with DSM-IV-classified GAD has reported efficacy of riluzole, a presynaptic glutamate release inhibitor. In this study, riluzole was titrated to a dose of 100 mg day. Two-thirds of the patients had positive improvement after 8 weeks of treatment; sleep disturbance, nausea, somnolence, dry mouth, and transient increases in hepatic aminotransferases were the most common adverse events reported. Atypical antipsychotic drugs have also been increasingly studied in anxiety disorders, mostly as augmenting strategies for both patients with and without the presence of co-occurring mood disorders. Aripiprazole, risperidone, olanzapine, and ziprasidone have all been studied in the treatment of GAD. Daily doses used have been low to moderate aripiprazole 1530 mg; risperidone 0.51.5 mg; olanzapine 520 mg; ziprasidone 2080 mg ; . Symptomatic improvement has been noted in some subjects; however, it Pharmacotherapy Self-Assessment Program, 6th Edition 123 and lotensin!
Lorazepam also can be administered intramuscularly; other benzodiazepines are erratically absorbed when given intramuscularly. Hypnotic agents.
SUBSTANCE ABUSE INFORMATION CARD courtesy of DIVISION ON ADDICTIONS, Cambridge Health Alliance, an affiliate of Harvard Medical School CAGE Test adapted ; to screen for Alcoholism Drug Addiction: 1 + high risk for addiction; full assessment recommended. Have you ever: Cut back or Changed your drinking or drug use ; pattern? felt Annoyed if people criticized your or drug use ; drinking? felt Guilty about drinking or drug use ; ? needed a drink Early in the day to steady yourself? Eye opener ; ALCOHOL WITHDRAWAL Early Sxs 6-12 hrs. ; : Tremor, anorexia, nausea vomiting, insomnia, anxiety, irritability, diaphoresis, tachycardia, fever, mild hypertension, hallucinosis. Later Sxs. 7-96 hrs ; : Seizures, Delirium Tremens Timing: Earliest onset 6-8 hrs. after abstinence. Can be immediate or up 5 days. Some may present sxs. with a decrease in amount of use ; Rx: 1 ; Benzos to eleviate sxs.: Acute Medical Settings: lorazepam ativan ; at least 1 mg q 4-6 hrs IV; titrate up or down holding the interval steady depending on patient status aiming for calm, but not oversedation . Dosage requirements vary widely. Decrease by no more than 10-20% per day. Note: Lorazepam preferred in acute medical settings greatest flexibility Detox Setting: Chlordiazepoxide Librium ; 50-100 mg. po; titrate up and down as indicated 2 ; Thiamine 100 mg IM or IV qd 3d; Folate 1 mg po qd. 3 ; Haloperidol Haldol ; .5-2.0 mg po or IM for severe agitation or psychotic sxs. Low stimulation environment. DTs: Marked hypertension, tachycardia, fever, hallucinosis, agitation, confusion, combativeness, and seizures. Timing: 24-72 hrs. after abstinence Rx: ICU monitoring, restraints, IV fluids, IV benzos, antipyretics if needed. Diazepam 5-10 mg or lorazepam if liver disease ; 1-2 mg slowly IV q 15-20 min. until stabilized. Then q 2h prn. Wernicke's encephalopathy Sx: Ataxia, nystagmus, ophthalmoplegia, confusion Prevention: Thiamine 100 mg IM or IV prior to any glucose Belligerent Patient Security guards present; Don't show anger; Haloperidol 5 mg po or IM; Add lorazepam 1-2 mg if needed; restraints if violent. Seizures Sx: Generalized focal gets a workup often 2-6 closely spaced; status rare. Timing: 7-48 hrs. after abstinence late onset gets a workup ; . DDX: R O Trauma, metabolic causes incl low Mg + ; , infection. Rx: Benzos best. Protect from falls and lotrel.
One of the most commonly confused name pairs reported to PA-PSRS has been morphine and hydromorphone. Thirty-two percent 32% ; of the opiate narcotic look-alike name reports include these two drugs. A number of events reported to national systems involving this combination have been fatal. In fact, mix-ups between these drugs are among the most common and most serious errors that occur involving two high-alert drugs, based on reports to national reporting programs. Contributing factors include the mistaken belief that hydromorphone is the generic name for morphine, as well as both drugs being available in 1 mg mL, 2 mg mL and 4 mg mL prefilled syringes.4 We have also received reports involving mix-ups between the pegylated liposomal form of doxorubicin DOXIL ; , instead of the conventional form, doxorubicin hydrochloride, as well as confusion between cephalosporin antibiotics. Examples of error reports submitted to PA-PSRS include: Six percent 6% ; of all reports of name confusion occurred between alprazolam XANAX ; and lorazepam ATIVAN ; . Mix-ups between similar names of insulin products such as: HUMALOG and HUMALOG 75 25 HUMALOG and HUMULIN R HUMULIN N and HUMULIN R HUMALOG 75 25 and HUMULIN 70 30 NOVOLOG and HUMALOG NOVOLOG and NOVOLIN R NOVOLOG 70 30 and NOVOLIN 70 30.
Proliferation of primary cultures of mouse cerebral EP2 microglia were compared to WT microglia by counting microglia after 24 hours of incubation in medium either containing or free of serum supplement at initial cell number of 1 105; no significant difference between microglia from mice of different genotypes was observed P 0.05 ; . Cytokine chemokine array pointed to MIP-1 and MCP-1 as detectably increased in conditioned medium from primary EP2 microglia compared to WT; ELISA data for both chemokines are presented. Data are mean SEM for n 6 in each condition * , P 0.001 and lysergic.
90. A patient is admitted to the emergency room with a fractured leg. The physician orders morphine 15 mg IM stat. You have on hand morphine 10 mg mL. How many milliliters will you administer? 15 mg 1 mL 10 mg 91. A patient is receiving 160 mg of methylprednisolone IM every 12 hours. You have on hand two vials that each contains 125 mg 2 mL. How much will you draw into a syringe? 160 mg 2 mL 125 mg 92. You have available lorazepam Ativan ; 0.5 mg tablets, and you need to administer 1 mg PO. How many tablets will you administer? 1 mg 1 tablet 0.5 mg 93. A patient is instructed to take acetaminophen Tylenol ; liquid elixir ; 650 mg qid. The elixir is 160 mg 5 mL. How many milliliters per dose should the patient take? 650 mg 5 mL 160 mg 94. The physician writes a "now" order for codeine 45 mg IM for a patient with a vertebral compression fracture. You have on hand codeine 60 mg 2 mL. How many milliliters should you give? 45 mg 2 mL 60 mg 1.5 mL 20 mL tablets 2.6 mL 1.5 mL.
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21. Mazue G, Remandet B, Gouy D, Berthe J, Roncucci R, Williams GM. Limited in vivo bioassays on some benzodiazepines: lack of experimental initiating or promoting effect of the benzodiazepine tranquillizers diazepam, clorazepate, oxazepam and lorazepam. Arch Int Pharmacodyn Ther 1982; 257: 59 Miernik A, Santa-Maria A, Marano F. The antimitotic activities of some benzodiazepines. Experientia 1986; 42: 956 Preat V, de Gerlache J, Lans M, Roberfroid M. Promoting effect of oxazepam in rat hepatocarcinogenesis. Carcinogenesis 1987; 8: 97 Rosenberg L, Palmer JR, Zauber AG, Warshauer ME, Strom BL, Harlap S, Shapiro S. Relation of benzodiazepine use to the risk of selected cancers: breast, large bowel, malignant melanoma, lung, endometrium, ovary, non-Hodgkin's lymphoma, testis, Hodgkin's disease, thyroid, and liver. J Epidemiol 1995; 141: 1153 Lafi A, Parry JM. A study of the induction of aneuploidy and chromosome aberrations after diazepam, medazepam, midazolam and bromazepam treatment. Mutagenesis 1988: 237. 26. Moran EM. Epidemiological and clinical aspects of nonsteroidal anti-inflammatory drugs and cancer risks. J Environ Pathol Toxicol Oncol 2002; 21: 193201. Hussong JW, Rodgers GM, Shami PJ. Evidence of increased angiogenesis in patients with acute myeloid leukemia. Blood 2000; 95: 309 Padro T, Ruiz S, Bieker R, Burger H, Steins M, Kienast J, Buchner T, Berdel WE, Mesters RM. Increased angiogenesis in the bone marrow of patients with acute myeloid leukemia. Blood 2000; 95: 2637 Aguayo A, Kantarjian H, Manshouri T, Gidel C, Estey E, Thomas D, Koller C, Estrov Z, O'Brien S, Keating M, Freireich E, Albitar M. Angiogenesis in acute and chronic leukemias and myelodysplastic syndromes. Blood 2000; 96: 2240 Brunner B, Gunsilius E, Schumacher P, Zwierzina H, Gastl G, Stauder R. Blood levels of angiogenin and vascular endothelial growth factor are elevated in myelodysplastic syndromes and in acute myeloid leukemia. J Hematother Stem Cell Res 2002; 11: 119 and macrobid.
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Martha Kerr Oct. 6, 2003 New Orleans ; -- Half of elderly patients with painful neuropathies receive inappropriate analgesics, researchers announced here at the American Academy of Family Physicians annual scientific assembly. Using data collected from a large, integrated U.S. health insurance claims database containing information on more than three million patients, Bill McCarberg, MD, from Kaiser Permanente in San Diego, California, and colleagues selected data on patients aged 65 years or older with diagnoses of painful neuropathies. They identified a total of 22, 668 patients. Dr. McCarberg reported that 49.9% of patients received analgesics that were inappropriate for their age, according to the latest American Geriatric Society guidelines. Women accounted for 58.6% of the study group and were more likely than men to receive inappropriate medications 54.6% vs. 43.3% ; . More than half of those aged 85 years or older 53.0% ; received inappropriate pain medications, Dr. McCarberg reported, compared with 48.0% of those aged 65 to 74 years and 52.2% of those aged 75 to 84 years. Approximately 70% of those with postherpetic neuralgia received inappropriate medication, while 60.0% of those with phantom limb pain and 55.1% of those with cancer with neuropathic involvement received medications inappropriate for their age group. Propoxyphene was the most commonly prescribed inappropriate drug, followed by amitriptyline, temazepam, alprazolam, lorazepam, and diazepam. Dr. McCarberg noted that propoxyphene is cardiotoxic in the elderly and the tricyclic antidepressants have anticholinergic effects that are considered unsafe in this population. Dr. McCarberg noted that the elderly are often on many medications with which analgesics can interact negatively. Panel moderator Renee Miskimmin, MD, director of the family physician residency program at Hamot Medical Center in Erie, Pennsylvania, told Medscape that she is not surprised so many patients are receiving medications that do not follow current recommendations. "It takes a long time to get the word out, " she said. "The answer [to better adherence to recommended guidelines] is the electronic medical record. The technology in most physician offices is just not there and medroxyprogesterone.
1803Church. Regardless, for reasons currently unknown, well 1803Church has low nitrate concentrations although it is very near three contaminated wells of the same depth as itself. Another inconsistency is the presence of a shallow well 167042 ; with very low nitrate levels located across the street from Schshall, a well that had historically high nitrates. Well 167042 is a public water supply well for a dairy, and this well has never shown elevated nitrate levels. Some data see discussions that follow ; indicate that nitrates historically present in Schshall may have been a result of septic contamination. Nitrate plumes from individual septic systems can be relatively limited in size, and that may explain why well 167042 has not seen elevated nitrates. The downgradient boundary of the elevated nitrates in Section 15 may be defined by well 703038. However, the downgradient boundary has not been defined in the area north of well 703038. Additionally, the cross-gradient boundary has not been defined south of well 2335WVD02 or north of wells 84490 and 84486. More work will need to be done to define areas of elevated nitrates and boundary areas. This task would require expanding the study area, and is limited by where shallow groundwater wells actually exist. DEQ is currently aware of only two additional shallow wells on the LCF which have not been sampled, and these DEQ became aware of only recently. Vertical nitrate boundaries: nitrate in the deep aquifer Nitrate concentrations in the deep aquifer are shown in Figure 4. In general, elevated levels of nitrate were found in the shallow wells and not in deep wells. Nitrate does not appear to be present at levels of concern in groundwater deeper than approximately 150 feet. One exception is well 1610Church 220 feet deep ; which had approximately 6 mg l nitrate, a concentration DEQ considers elevated. The property owner indicated that this well was installed as a replacement for the shallow well on this property, which had been contaminated with nitrate possibly due to septic effluent contamination ; . The reason for the elevated nitrates in well 1610Church is not known. Nitrate trends Table 6 and Figure 6 below ; shows nitrate concentrations over time for selected wells. These wells have the longest and most complete sampling history. There is no clear overall trend. In some wells, nitrate concentrations appear to be fluctuating. These fluctuations do not appear to be consistent between wells i.e. while nitrate is increasing over time in one well it may be decreasing in another ; , and do not appear to correlate with seasonal changes in water elevation. There are gaps in the data that make interpretation difficult. Currently, it is unclear if there are seasonal trends in nitrate concentration, or if the fluctuations are due simply to inherent variability in the system. More data points per year would be needed to show seasonal fluctuations and any overall trends. An important item to note is that sometime between 1998 and 2002, nitrate concentrations in several wells Lachapshallow, 84528, 137876 ; increased dramatically. Unfortunately, DEQ does not have data for the time period between 1998 and 2002. Also, DEQ does not have data regarding nitrate concentrations in well 84527 prior to May 2002, for instance, blog lorazepam trackback url.
12. Thurston TA, Williams CGA. Reversal of a paradoxical reaction to midazolam with flumazenil. Anesth Analg 1996; 83: 192. Marty J, Nitenberg A, l'hilp I, et al. Coronary and left ventricular hemodynamic responses following reversal of flunitrazepaminduced sedation with flumazenil in patients with coronary artery disease. Anesthesiology 1991; 74: 71-6. Chiolero RL, Ravussin l', Anderes J, et al. The effects of midazolam reversal by RO 15-1788 on cerebral perfusion pressure in patients with severe head injury. Intensive Care Med 1988; 14: 196-200. Pandit UA, Kothary SP, Samra SK, et al. Physostigmine fails to reverse clinical, psychomotor, or EEG effects of lorazepam. Anesth Analg 1983; 62: 679-85. Dudley DL, Rowlett DB, Loebel PJ. Emergency use of intravenous haloperidol. Gen Hosp Psychiatry 1979; 1: 240-6. Settle EC Jr, Ayd FJ Jr. Haloperidol: a quarter century of experience. J Clin Psychiatry 1983; 44: 440-8. Sanders KM, Stern TA. Management of delirium associated with use of the intra-aortic balloon pump. J Crit Care 1993; 2: 371-7. Froemming JS, Lam F, Jann MW, Davis CM. Pharmacokinetics of haloperidol. Clin Pharmacokinet 1989; 6: 396-423. Tesar GE, Murray GB, Cassem NH. Use of high-dose intravenous haloperidol in the treatment of agitated cardiac patients. J Clin Psychopharmacol 1985; 5: 344-7. Cameron 0. Safe use of haloperidol in a patient with cardiac dysrhythmia. J Psychiatry 1978; 135: 1244. Donlon l', Hopkin J, Schaffer C. Cardiovascular safety of rapid treatment with intramuscular haloperidol. J Psychiatry 1979; 136: 233-4. Menza M, Murray G, Holmes V, et al. Decreased extrapyramida1 symptoms with intravenous haloperidol. J Clin Psychiatry 1987; 48: 278-80. Menza MA, Murray GB, Holmes VF, Rafuls WA. Controlled study of extrapyramidal reaction in the management of delirious, medically ill patients: intravenous haloperidol `uersus intravenous haloperidol plus benzodiazepine. Heart Lung 1988; 17: 238-41. Harvey MA. Managing agitation in critically ill patients. J Crit Care 1996; 5: 7-16. Baldessarini RJ. Drugs and the treatment of psychiatric disorders. In: Hardman JG, Limbird LE, eds. Goodman & Gilman's the pharmacological basis of therapeutics. 9th ed. New York: McGraw-Hill, 1996: 399-430. 27. Taylor DP, Riblet LA, Stanton HC, et al. Dopamine and antianxiety activity. Pharmacol Biochem Behav 1982; 175: 25-35. Solderpalm B, Svensson L, Hulthe P, et al. Evidence for a role for dopamine in the diazepam locomotor stimulating effect. Psychopharmacology 1991; 104: 97-102. Murphy BL, Arnsten AFT, Goldman-Rakic I'S, Roth RH. Increased dopamine turnover in the prefrontal cortex impairs spatial working memory performance in rats and monkeys. Proc Nat1 Acad Sci USA 1996; 93: 1325-9 and mescaline.
Patients should be warned of possible side effects, noting that they are often mild and fleeting. Patients should be advised to discontinue treatment if they experience protracted nausea, vomiting or other intolerable side effects. Although there is little evidence to support switching ChEIs, this is likely a safe and reasonable option for patients who are experiencing intolerable side effects or who are felt to be not responding. Determining the benefit from these drugs in individual patients in clinical practice can be challenging. Administration of the mini-mental status examination MMSE ; to measure cognitive changes is mandatory under most provincial drug benefit plans, but clinicians should also be encouraged to monitor behaviour and activities of daily living in addition to cognition. The goal assessment scale GAS ; is a useful clinical tool for monitoring response to treatment.6 Memantine is also a symptomatic treatment, with modest benefits in the domains of cognition, behaviour and activities of daily living. A placebo-controlled study looking at the combination of donepezil and memantine in patients with moderate to severe AD showed greater benefit from the combination than from donepezil alone.7 Given the "floor effect" of the MMSE in the later stages of dementia, it is difficult for clinicians to determine a cognitive benefit from memantine in their patients using this tool. At this time, memantine has not been listed by any of the provincial drug formularies. Concomitant cerebrovascular disease has been shown to exacerbate the expression of AD; therefore, it makes sense to monitor and control cardiovascular risk factors in patients with AD.8 Excessive use of alcohol should be discouraged. Challenging behaviours, such as verbal and physical aggression, invariably occur in most patients with AD, placing a tremendous burden on caregivers and often leading to caregiver burnout and admission of the patient to long-term care. Managing these behaviours can be difficult, even for the most experienced clinician. Efforts to identify triggers that evoke disturbing behaviours can often yield more favourable results than pharmacologic therapies. Patients exhibiting challenging behaviours should be fully assessed for medical morbidity, such as delirium and pain. Caregivers should be counseled on how to approach and communicate with individuals with dementia, and attempts should be made to implement non-pharmacologic strategies to treat the behaviour before considering the prescription of drugs. The use of non-pharmacologic and pharmacologic strategies need not be exclusive of each other. Since the 1950s, neuroleptic drugs have been the mainstay of treatment for Alzheimer patients with agitated and aggressive behaviours. Meta-analyses of both conventional and atypical antipsychotics have shown that these drugs have a modest effect in decreasing the severity and frequency of these behaviours.9, 10 The atypical neuroleptics offer a significantly lower risk of extrapyramidal and anticholinergic side effects than conventional neuroleptics. A number of studies with 2 of these agents, risperidone and olanzapine, have demonstrated that they are effective and well tolerated in the treatment of aggression, agitation and psychosis in patients with AD. However, the recent warnings from the Food and Drug Administration and Health Canada reporting a 1.6-1.7 increased risk of mortality in AD patients treated with atypical neuroleptics have made the ongoing use of these medications a topic of hot debate.11 Clinicians who continue to prescribe these drugs should be especially cautious when treating patients with a history of cerebrovascular disease and cardiac conduction abnormalities. Because challenging behaviours often diminish over time, attempts to decrease the dose or discontinue the drug should be considered. Antidepressants, especially citalopram and trazodone, are sometimes used to treat symptoms of agitation, especially when anxiety and depression appear to be an underlying cause. Short-acting benzodiazepines, such as lorazepam, may be considered as a when-needed treatment for acute agitation or as a sedative in preparation for a procedure, but should be avoided as a scheduled treatment. Other medications, such as anti-convulsants and hormonal therapies, are occasionally used as second-- or third-line treatments.
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