Drugs online research references
Can Fam Physician. 2001 Mar;47:489-90.
Discontinuing antidepressants and benzodiazepines upon becoming pregnant. Beware of the risks of abrupt discontinuation.
Einarson A, Selby P, Koren G.
Hospital for Sick Children, Toronto.
QUESTION: Two of my patients are planning to become pregnant. One is taking paroxetine and the other lorazepam. We have discussed what to do when they become pregnant and have decided they should stop taking these drugs as soon as pregnancy is confirmed. Is this the right decision? ANSWER: The decision to discontinue these drugs during pregnancy should be based on scientific evidence rather than "hearsay" that women should not take psychotropic medications during pregnancy. Recent epidemiologic studies have documented the relative safety of these drugs, so women should not feel compelled to stop taking them when they become pregnant. If, after receiving appropriate evidence-based information, a woman decides to stop taking the drugs, they should be gradually tapered off to avoid abrupt discontinuation syndrome.
online pharmacy ref source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11281079&dopt=Abstract
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psico.med.unipi.it
Different findings suggest that the serotonin (5-HT) system may be involved in both the regulation of aggression and the pathophysiology of obsessive-compulsive disorder (OCD). Our study aimed to evaluate the aggressive features of a group of OCD patients and to explore possible correlations with a serotonergic marker, namely platelet 5-HT transporter. Psychopathological and biological patterns were compared with those of a group of healthy controls and those of patients with major depression. Twenty-one patients affected by OCD, 21 by depression and 21 healthy controls were included in the study. Aggressive features were measured by means of the Buss and Durkee Hostility Inventory (BDHI). The platelet 5-HT transporter was evaluated by means of the (3)H-paroxetine binding parameters (maximum binding capacity, B(max) and dissociation constant, K(d)). The OCD patients showed a total score on the BDHI not significantly different from that of healthy controls and lower than that of depressed patients. The factor profile was similar in the 3 groups, but higher in the depressed patients. The irritability, resentment, guilt, negativism and suspiciousness factors were significantly more pronounced in depressed patients. Some sex-related difference in single factors were also observed. The B(max) of (3)H-paroxetine binding was lower in OCD patients than in depressives or healthy controls. OCD patients were more similar to healthy controls than to depressed patients with regard to aggressive features measured by means of the BDHI. This suggests that aggression in OCD is a complex phenomenon that probably requires specific instruments of evaluation. Copyright 2001 S. Karger AG, Basel
online pharmacy ref source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11287787&dopt=Abstract
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dupontpharma.com
The identification of large numbers of biologically active chemical entities during high throughput screening (HTS) necessitates the incorporation of new strategies to identify compounds with drug-like properties early during the lead prioritization and development processes. One of the major steps in lead prioritization is an assessment of compound binding to plasma proteins, because it affects both the pharmacokinetics and pharmacodynamics of the compound in vivo. Equilibrium dialysis is the preferred method to determine the free drug fraction, because it is less susceptible to experimental artifacts. However, even low-volume standard equilibrium dialysis is currently not amenable to the HTS format. Those considerations dictate the development of a high throughput equilibrium dialysis device, without compromising the analytical quality of the data. The present paper demonstrates successful development of a 96-well format equilibrium dialysis plate. Plasma protein binding of three drugs, propranolol, paroxetine, and losartan, with low, intermediate, and high binding properties, respectively, were chosen for assay validation. The data indicate that the apparent free fraction obtained by this method correlates with the published values determined by the traditional equilibrium dialysis techniques. Copyright 2001 Wiley-Liss, Inc. and the American Pharmaceutical Association.
online pharmacy ref source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11288102&dopt=Abstract
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