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  • 1
    Electronic Resource
    Electronic Resource
    Plasma concentrations and effect on testosterone metabolism after single doses of MK-0434, a steroid 5 alpha-reductase inhibitor, in healthy subjects (1994)
    Springer
    European journal of clinical pharmacology 46 (1994), S. 123-126 
    Details
    ISSN: 1432-1041
    Keywords: Steroid 5α-reductase inhibitor ; Testosterone metabolism ; MK-0434 ; pharmacodynamics ; pharmacokinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract A four-period, two-panel, single-rising-dose study (0.1–100 mg) was conducted in healthy males to investigate the pharmacodynamics, tolerability and pharmacokinetics of MK-0434, a steroid 5α-reductase inhibitor. MK-0434 was associated with a significant reduction in dihydrotestosterone, which was maximal at 24 h and maintained through 48 h post treatment. The maximum reduction was approximately 50 % and occurred at all doses above 5 mg (10, 25, 50 and 100 mg). MK-0434 appeared to have no effect on serum testosterone at these single doses. Rising single doses of MK-0434 were associated with an increase in Cmax and AUC but the changes were less than proportional to dose, most likely due to nonlinear absorption. MK-0434 given in single doses up to 100 mg was without significant adverse effects in healthy male volunteers. In summary, MK-0434 is a well-tolerated, potent, orally active 5α-reductase inhibitor in man.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00199874
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  • 2
    Electronic Resource
    Electronic Resource
    Moexipril does not alter the pharmacokinetics or pharmacodynamics of warfarin (1993)
    Springer
    European journal of clinical pharmacology 45 (1993), S. 291-293 
    Details
    ISSN: 1432-1041
    Keywords: Moexipril ; Warfarin ; pharmacokinetics ; pharmacodynamics ; drug-interaction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The potential effect of moexipril, a new converting enzyme inhibitor, on the pharmacokinetics and pharmacodynamics of a single dose of warfarin has been investigated. Ten healthy male volunteers received in a randomised crossover fashion a single oral dose of 50 mg warfarin sodium alone and together with the first dose of 6 days of oral treatment with moexipril 15 mg o.d. Mean oral plasma clearance of (R)-warfarin was 175 ml·h−1 in the absence and 181 ml·h−1 in the presence of moexipril, and the corresponding values for (S)-warfarin were 248 ml·h−1 and 249 ml·h−1. Apparent volume of distribution, peak plasma concentration, time to reach peak concentration and area under the plasma concentration-time curve both of (R)- and (S)-warfarin were not significantly affected. Moexipril did not alter the maximum prothrombin time (20.3 versus 20.1 s, respectively in the absence and presence of moexipril), time to maximum response (48.0 versus 50 h) and area under the prothrombin time versus time curve. The results suggest that a clinically important interaction between moexipril and warfarin is unlikely to occur in patients treated with both drugs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00315400
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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