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Pharmacokinetics of imipramine (IMI) and its active metabolite, desipramine (DMI) was studied in rats after administration of a single dose of 10 mg/kg IMI, or after chronic administration of this dose once or twice a day for 14 days. The elimination curves of IMI and DMI from the blood and brain show that both the whole body and the brain behave as(More)
Distribution in rat tissues of citalopram, a potent and specific inhibitor of neuronal 5-HT uptake was uneven. The blood serum level of the drug did not reflect its distribution in the brain tissue and in the spinal cord. Prolonged administration of citalopram enhanced its blood serum, brain and spinal cord AUC values and slowed down its elimination from(More)
Trazodone and its metabolite, m-chlorophenylpiperazine (CPP) prolonged significantly thiopentone-induced sleep in mice. Neither trazodone, nor CPP changed the cerebral concentrations of thiopentone. As cyproheptadine by itself did not affect thiopentone sleep and did not antagonize the effect of CPP, the effect of trazodone and CPP seems to be independent(More)
This research compares the effects, in mice and rats, of desmethylclomipramine (DCLOM) and clomipramine (CLOM). DCLOM antagonized the hypothermia induced in mice by reserpine or apomorphine to a much greater extent than CLOM. Reserpine ptosis in mice was depressed by DCLOM only. Similarly, only DCLOM was effective in the behavioral despair test in rats.(More)
BACKGROUND Phytoestrogens such as genistein, the most prominent isoflavone from soy, show concentration-dependent anti-estrogenic or estrogenic effects. High genistein concentrations (>10 μM) also promote proliferation of bone cancer cells in vitro. On the other hand, the most active component of the vitamin D family, calcitriol, has been shown to be tumor(More)
The effect of prolonged administration of imipramine (IMI) to rats on the biliary excretion of IMI and its metabolites desipramine (DMI), 2-OH-imipramine (2-OH-IMI) and 2-OH-desipramine (2-OH-DMI) has been investigated. It was found that chronic IMI decreased the ratio DMI/IMI and 2-OH-IMI/IMI excreted with the bile and increased the ratio 2-OH-DMI/DMI.(More)
Tail-flick latencies and morphine concentrations in the blood serum, brain (without striatum) and spinal cord were measured in rats receiving 10 mg/kg ip morphine with or without haloperidol pretreatment (0.1 or 1 mg/kg sc). Haloperidol pretreatment dose-dependently potentiated the analgesic action of morphine and interfered with tissue morphine levels.(More)
BACKGROUND The medicinal plants Vincetoxicum arnottianum (VSM), Berberis orthobotrys (BORM), Onosma hispida (OHRM and OHAM) and Caccinia macranthera (CMM) are used traditionally in Pakistan and around the world for the treatment of various diseases including cancer, dermal infections, uterine tumor, wounds etc. The present study focuses on the investigation(More)
The pharmacokinetics of morphine were studied in various tissues of rats subjected to a single dose treatment (SDT, 30 mg/kg), constant dose treatment (CDT, 30 mg/kg daily for 8 days) and increasing dose treatment (IDT, twice daily, raising from an initial dose 20 mg/kg to the final 300 mg/kg). After CDT the elimination of morphine was slow and the drug was(More)
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