Łebkowska-Wieruszewska Beata, Stefanelli Fabio, Chericoni Silvio, Owen Helen, Poapolathep Amnart, Lisowski Andrzej, Giorgi Mario
Department of Pharmacology, University of Life Sciences, Lublin, Poland.
Department of Patologia, Chirurgica, Medica, Molecolare e dell'Area Critica, Università di Pisa, Italy.
Res Vet Sci. 2019 Apr;123:26-28. doi: 10.1016/j.rvsc.2018.12.003. Epub 2018 Dec 17.
The aim of this study was to explore the pharmacokinetics of the two main active compounds (THC and CBD) contained in the cannabis oil extract Bedrocan® in fasting and fed dogs. Bedrocan® (20% delta-9-tetrahydrocannabinol [THC] and 0.5% cannabidiol [CBD]) was administered at 1.5 and 0.037 mg/kg THC and CBD, respectively in fasted and fed dogs according to a 2 × 2 cross over study design. The quantification of the two active ingredients was performed by LC/MS. No detectable concentrations of CDB were found at any collection time. THC was quantifiable from 0.5 to 10 h, although there was large inter-subject variability. Fed dogs showed a longer absorption phase (Tmax 5 vs 1.25 h) and lower maximal blood concentration (7.1 vs 24 ng/mL) compared with the fasted group. A larger AUC was found in the fasted group; the relative oral bioavailability in fed animals was 48.22%.
本研究的目的是探究大麻油提取物Bedrocan®中所含两种主要活性成分(四氢大麻酚[THC]和大麻二酚[CBD])在禁食和进食犬体内的药代动力学。根据2×2交叉研究设计,分别以1.5和0.037mg/kg的THC和CBD对禁食和进食的犬给予Bedrocan®(20% Δ⁹-四氢大麻酚[THC]和0.5%大麻二酚[CBD])。通过液相色谱/质谱法对两种活性成分进行定量。在任何采集时间均未检测到CBD的浓度。THC在0.5至10小时内可定量,尽管个体间存在较大差异。与禁食组相比,进食的犬显示出更长的吸收期(达峰时间5小时对1.25小时)和更低的最大血药浓度(7.1 ng/mL对24 ng/mL)。禁食组的曲线下面积更大;进食动物的相对口服生物利用度为48.22%。