The Fasting State: The subjects fasted overnight for at least 10 hours prior to drug administration. A single dose of the investigational product was thereafter administered orally with approximately 240 mL of water at ambient temperature. Fasting continued for at least 4 hours following drug administration, after which a standardized lunch was served. A supper and a light snack were also served at appropriate times thereafter, but not before 9 hours after dosing. Water was allowed ad libitum until 2 hours predose and from 2 hours after

drug administration. TGF-beta inhibitor statistical Analysis Sample Size The sample size was calculated, taking into consideration that the intrasubject variations in the maximum plasma drug concentration (Cmax) and AUCt following a single dose of doxylamine appear to be around 10%. Therefore, selleck screening library it was estimated that 24 subjects were sufficient to evaluate the bioavailability of a single 25 mg dose of doxylamine after single oral dose administration under fed and fasting conditions. Statistical Comparison Descriptive statistics were used to summarize AEs, safety results, and demographic variables (age, height, weight, and body mass index). Pharmacokinetic parameters such as Cmax, the time to reach Cmax (tmax), AUCt,

AUC∞, AUCt : AUC∞, the elimination rate constant (ke), and t½ were calculated. For statistical analysis of relative bioavailability, the main pharmacokinetic parameters of interest were Cmax and AUCt. The natural logarithmic transformation of Cmax, AUCt, and AUC∞ was used for all statistical AS1842856 nmr inferences. The main absorption and disposition parameters were estimated using a noncompartmental approach with a log-linear terminal phase assumption. The trapezoidal rule was used to estimate the area under the concentration–time curve, and the terminal phase was estimated by maximizing the coefficient of determination estimated from the log-linear regression model. They were not to be

estimated for individual concentration–time profiles, where the terminal log-linear phase could not be reliably characterized. The mean, median, minimal value, maximal value, standard deviation, and coefficient of variation were calculated for plasma concentrations at each individual timepoint and for all pharmacokinetic parameters. tmax was Benzatropine analyzed using a nonparametric approach. Testing of fixed period, sequence, and treatment effects was based on the Wilcoxon rank sum test (the Mann–Whitney U-test). All other untransformed and log-normal (ln)-transformed pharmacokinetic parameters were statistically analyzed using a random analysis of variance (ANOVA) model. The fixed factors included in this model were the treatment received, the period in which it was given, and the sequence in which each treatment was received. A random factor was also added for the subject effect (nested within sequence). The sequence, period, and treatment effects were assessed at the 5% two-sided level.