Evaluation of the food effect on a drospirenone only contraceptive containing 4 mg administered with and without high-fat breakfast in a randomised trial von Regidor, P.-A, Richter, W. H, Koytchev, R, Kirkov, V, Colli, E

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Comparative pharmacokinetic estimates of drospirenone alone and in combination with ethinyl estradiol after single and repeated oral administration in healthy females von Richter, W.H., Koytchev, R., Kirkov, V., Merki, G., Colli, E., Regidor, P.-A.

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Therapeutic equivalence of two formulations of calcipotriol–betamethasone ointment: a multicentre, randomized, double‐blind study in adult patients with chronic plaque psoriasis... von Habjanic, N., Koytchev, R., Yankova, R., Kerec‐Kos, M., Grabnar‐Peklar, D.

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A randomized, double-blind, placebo-controlled study of the efficacy and safety of tolperisone in spasticity following cerebral stroke von Stamenova, P., Koytchev, R., Kuhn, K., Hansen, C., Horvath, F., Ramm, S., Pongratz, D.

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Comparative pharmacokinetic estimates of drospirenone alone and in combination with ethinyl estradiol after single and repeated oral administration in healthy females von Richter, W H, Koytchev, R, Kirkov, V, Merki, G, Colli, E, Regidor, P-A

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Balm mint extract (Lo-701) for topical treatment of recurring herpes labialis von Koytchev, R., Alken, R.G., Dundarov, S.

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Effect of epoetin zeta for correction of renal anemia in hemodialysis patients with thalassemia minor von Kumchev, E., Koytchev, R., Dimitrakov, D., Stavrev, P., Tsochev, G., Siebert-Weigel, M.

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Comparison of the efficacy and endometrial safety of two estradiol valerate/dienogest combinations and Kliogest® for continuous combined hormone replacement therapy in postmenopaus... von Gräser, T., Koytchev, R., Müller, A., Oettel, M.

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Influence of the cytochrome P4502D64 allele on the pharmacokinetics of controlled-release metoprolol von KOYTCHEV, R, ALKEN, R.-G, VLAHOV, V, KIRKOV, V, KANEVA, R, THYROFF-FRIESINGER, U, REHAK, E

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Quantitation of R- and S-propafenone and of the main metabolite in plasma von BÖHM, R, ELLRICH, R, KOYTCHEV, R

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Absolute bioavailability of oral immediate and slow release fluphenazine in healthy volunteers von Koytchev, R, Alken, R G, McKay, G, Katzarov, T

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Effect of diprafenone on the pharmacokinetics of digoxin von KOYTCHEV, R, ALKEN, R.-G, MAYER, O

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Influence of food on the bioavailability and some pharmacokinetic parameters of diprafenone - a novel antiarrhythmic agent von KOYTCHEV, R, ALKEN, R.-G, MAYER, O, SMITH, I, GREENWOOD, M

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Differences in the bioavailability of dihydrotachysterol preparations von KOYTCHEV, R, ALKEN, R.-G, VAGADAY, M, KUNTER, U, KIRKOV, V

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Serum concentration of piroxicam and inhibition of platelet aggregation in patients with rheumatoid arthritis and M. Bechterew von Koytchev, R., Alken, R. -G., Gromnica-Ihle, E.

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P-82. The New Progestin Dienogest in a Continuous-Combined Regimen for HRT von Graeser, T., Koytchev, R., Mueller, A., Oettel, M.

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Absolute bioavaibility of oral immediate and slow release fluphenazine in healthy volunteers von KOYTCHEV, R, ALKEN, R.-G, MCKAY, G, KATZAROV, T

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Diprafenone: A New Antiarrhythmic Drug Related to Propafenone von Koytchev, Rossen

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Role of the early phase of the in-vitro release test for the bioavailability of perphenazine von KOYTCHEV, R, ALKEN, R.-G, LIDAN, A, GATCHEV, E

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Piroxicam and platelet aggregation in patients with rheumatoid arthritis von Hüller, H., Koytchev, R., Alken, R.G., Schöβler, W., Hüge, W.

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