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Original Research

Is it appropriate regarding patient preference to take Myrtol standardized enteric-coated soft capsules after a meal rather than at fasted state? A food–drug pharmacokinetic interaction study in healthy Chinese volunteers

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Pages 2031-2037 | Published online: 03 Oct 2016

Figures & data

Figure 1 Chemical structures of eucalyptol and linalool (internal standard).

Figure 1 Chemical structures of eucalyptol and linalool (internal standard).

Figure 2 MRM chromatograms of eucalyptol and IS.

Notes: (A) Blank plasma; (B) Blank plasma spiked with IS (final concentration: 1 μg/mL); (C) standard sample of eucalyptol (100 ng/mL) spiked with IS; (D) healthy volunteer plasma sample 4.0 h after an oral dose of 300 mg Myrtol standardized capsules, spiked with IS
Abbreviations: IS, internal standard; MRM, multiple reaction monitoring; min, minutes; h, hours.
Figure 2 MRM chromatograms of eucalyptol and IS.

Figure 3 Concentration–time curves of eucalyptol after a single oral dose (300 mg) of Myrtol standardized capsules taken at fasted and fed states in 11 Chinese volunteers (mean ± standard deviation).

Abbreviation: h, hours.
Figure 3 Concentration–time curves of eucalyptol after a single oral dose (300 mg) of Myrtol standardized capsules taken at fasted and fed states in 11 Chinese volunteers (mean ± standard deviation).

Table 1 The pharmacokinetic parameters of eucalyptol after a single oral dose of Myrtol standardized capsules taken at fasted and fed states in 11 Chinese volunteers

Table 2 ANOVA for the assessment of the pretreatment, subject and period effects, and 90% CI for the fasted/fed ratio of Cmax, AUC0–t, and AUC0–∞, using logarithmic transformed data, after a single dose of Myrtol standardized capsules to 11 Chinese volunteers (α=0.05)