A pharmaceutical composition which comprises a combination of a triazaspiro[5.5]undecane derivative of the formula (I):
(wherein all the symbols have the same meanings as defined hereinafter), a quaternary ammonium salt thereof, or an N-oxide thereof, or a non-toxic salt thereof with at least one cytochrome P450 isozyme 3A4 inhibitor and/or at least one P-glycoprotein inhibitor. As a result the pharmaceutical composition comprising the above-described combination, bioavailability of the compound of the formula (I) is enhanced and is able to be effectively utilized as an oral agent in the treatment of various diseases.
一种药物组合物,它由式(I)的三氮杂螺[5.5]
十一烷衍
生物、其季
铵盐、或其 N-氧化物、或其无毒盐与至少一种
抗氧化剂结合而成:
(其中所有符号的含义与下文所定义的相同)、其季
铵盐或其 N-氧化物或其无毒盐与至少一种细胞色素 P450 同工酶 3A4
抑制剂和/或至少一种 P 糖蛋白
抑制剂的组合。因此,由上述组合物组成的药物组合物可提高式(I)化合物的
生物利用度,并能有效地用作治疗各种疾病的口服药物。