Drugs online research references
rand.org
BACKGROUND: Several states have developed prescription-drug discount programs for Medicare beneficiaries. In California, Senate Bill 393, enacted in 1999, requires pharmacies participating in the state Medicaid program (Medi-Cal) to charge customers who present a Medicare card amounts based on Medi-Cal rates. Because Medicare beneficiaries may not be accustomed to presenting their Medicare cards at pharmacies, we assessed the compliance of pharmacies with Senate Bill 393. METHODS: Fifteen Medicare beneficiaries who received special training and acted as "standardized patients" visited a random sample of pharmacies in the San Francisco Bay area and Los Angeles County in April and May 2001. According to a script, they asked for the prices of three commonly prescribed drugs: rofecoxib, sertraline, and atorvastatin. The script enabled us to determine whether and when, during their interactions with pharmacists or salespeople, the discounts specified in Senate Bill 393 were offered. Pharmacies at which the appropriate discounts were offered were considered compliant. RESULTS: The patients completed visits to 494 pharmacies. Seventy-five percent of the pharmacies complied with the prescription-drug discount program; at only 45 percent, however, was the discount offered before it was specifically requested. The discount was offered at 91 percent of pharmacies that were part of a chain, as compared with 58 percent of independent pharmacies (P<0.001). Compliance was higher in the San Francisco Bay area than in Los Angeles County (84 percent vs. 72 percent, P=0.004) and was higher in high-income than low-income neighborhoods (81 percent vs. 69 percent, P=0.002). A Medicare beneficiary taking all three drugs would have saved an average of $55.70 per month as compared with retail prices (a savings of 20 percent). CONCLUSIONS: Discounts required under California's prescription-drug discount program for Medicare beneficiaries offer substantial savings. Many patients, however, especially those who use independent pharmacies or who live in low-income neighborhoods, may not receive the discounts.
online pharmacy ref source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11893795&dopt=Abstract
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Mol Pharmacol. 2002 Apr;61(4):778-85.
Up-regulation of tryptophan hydroxylase expression and serotonin synthesis by sertraline.
Kim SW, Park SY, Hwang O.
Department of Biochemistry, University of Ulsan College of Medicine, Seoul, Korea.
The neurotransmitter serotonin is involved in a variety of brain functions, and abnormal changes in serotonin neurotransmission are associated with an array of psychiatric disorders, including depression. Sertraline is a selective serotonin reuptake inhibitor (SSRI) and an effective antidepressant. Sertraline increases the serotonin concentration in the synaptic cleft by a short-term action; however, clinical improvement is observed only after several weeks, suggesting that the therapeutic effect may be caused by long-term alterations in serotonin transmission. We determined the effects of sertraline on serotonin synthesis in vivo and in vitro. Long-term treatment of rats with sertraline up-regulated mRNA and protein levels of the serotonin-synthesizing enzyme tryptophan hydroxylase (TPH), as determined by in situ hybridization and immunocytochemistry, respectively. In vitro studies using RBL-2H3 cells also showed an increase in mRNA and protein levels of TPH by sertraline, as determined by Northern blot and immunoblot analyses, respectively. This was accompanied by increases in the levels of TPH enzymatic activity and total serotonin. These data demonstrate that in addition to the known short-term action as an uptake blocker, sertraline also exerts a long-term effect on the serotonin neurotransmission by enhancing serotonin synthesis. A similar effect was observed with another SSRI, fluoxetine, but not with the non-SSRI chlorpromazine. The up-regulation of TPH gene expression by sertraline was attenuated by the protein kinase A (PKA) inhibitor N-[2-(p-bromocinnamylamine)-ethyl]-5-isoquinolinesulfonamine, suggesting that a mechanism involving the PKA signaling pathway might at least in part mediate the long-term therapeutic action.
online pharmacy ref source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11901216&dopt=Abstract
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Can J Psychiatry. 2002 Mar;47(2):174-80.
Antidepressant side effects in depression patients treated in a naturalistic setting: a study of bupropion, moclobemide, paroxetine, sertraline, and venlafaxine.
Vanderkooy JD, Kennedy SH, Bagby RM.
Queen's University, Kingston, Ontario.
OBJECTIVE: There is no commonly accepted standard for comparing antidepressant-induced side effects. This study evaluates a clinician-administered scale, the Toronto Side Effect Scale (TSES), in a natural practice clinic. METHOD: We used the TSES to assess side effects in 193 depression patients who completed 8 weeks of treatment with either bupropion, moclobemide, paroxetine, sertraline, or venlafaxine. RESULTS: Rates of remission (Hamilton Rating Scale for Depression [HRSD] < 7) did not differ across drugs after 8 weeks of treatment. Paired drug comparisons yielded significant differences in 16 of the 32 side effects. We present differences between pairs of the 5 antidepressants in Central Nervous System (CNS), gastrointestinal (GI), and sexual side effects. A measure of side-effect intensity distinguished paroxetine from the other antidepressants on a measure of sexual dysfunction. CONCLUSIONS: These results confirm the clinical utility of the TSES as a simple, clinician-administered antidepressant side-effect scale.
online pharmacy ref source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11926080&dopt=Abstract
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