scholarly journals The Development and Validation of a Novel “Dual Cocktail” Probe for Cytochrome P450s and Transporter Functions to Evaluate Pharmacokinetic Drug-Drug and Herb-Drug Interactions

Pharmaceutics ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 938
Author(s):  
Mihwa Kwon ◽  
Ji-Hyeon Jeon ◽  
Min-Koo Choi ◽  
Im-Sook Song
Keyword(s):  
Drug Interactions ◽  
Plasma Concentrations ◽  
Pharmacokinetic Parameters ◽  
Evaluation Protocol ◽  
Pharmacokinetic Properties ◽  
Comparison Groups ◽  
Cyp Isoforms ◽  
Development And Validation ◽  
Oral Doses ◽  
Pharmacokinetic Drug

This study was designed to develop and validate a 10 probe drug cocktail named “Dual Cocktail”, composed of caffeine (Cyp1a2 in rat and CYP1A2 in human, 1 mg/kg), diclofenac (Cyp2c11 in rat and CYP2C9 in human, 2 mg/kg), omeprazole (Cyp2c11 in rat and CYP2C19 in human, 2 mg/kg), dextromethorphan (Cyp2d2 in rat and CYP2D6 in human, 10 mg/kg), nifedipine (Cyp3a1 in rat and CYP3A4 in human, 0.5 mg/kg), metformin (Oct1/2 in rat and OCT1/2 in human, 0.5 mg/kg), furosemide (Oat1/3 in rat and OAT1/3 in human, 0.1 mg/kg), valsartan (Oatp2 in rat and OATP1B1/1B3 in human, 0.2 mg/kg), digoxin (P-gp in rat and human, 2 mg/kg), and methotrexate (Mrp2 in rat and MRP2 in human, 0.5 mg/kg), for the evaluation of pharmacokinetic drug–drug and herb-drug interactions through the modulation of a representative panel of CYP enzymes or transporters in rats. To ensure no interaction among the ten probe substrates, we developed a 2-step evaluation protocol. In the first step, the pharmacokinetic properties of five individual CYP probe substrates and five individual transporter substrates were compared with the pharmacokinetics of five CYP cocktail or five transporters cocktails in two groups of randomly assigned rats. Next, a pharmacokinetic comparison was conducted between the CYP or transporter cocktail group and the dual cocktail group, respectively. None of the ten comparison groups was found to be statistically significant, indicating the CYP and transporter substrate sets or dual cocktail set could be concomitantly administered in rats. The “Dual Cocktail” was further validated by assessing the metabolism of nifedipine and omeprazole, which was significantly reduced by a single oral dose of ketoconazole (10 mg/kg); however, no changes were observed in the pharmacokinetic parameters of other probe substrates. Additionally, multiple oral doses of rifampin (20 mg/kg) reduced the plasma concentrations of nifedipine and digoxin, although not any of the other substrates. In conclusion, the dual cocktail can be used to characterize potential pharmacokinetic drug–drug interactions by simultaneously monitoring the activity of multiple CYP isoforms and transporters.

scholarly journals Pharmacodynamics and pharmacokinetics of dermatan sulfate in humans

Blood ◽  
1989 ◽  
Vol 74 (5) ◽  
pp. 1577-1582
Author(s):  
F Dol ◽  
G Houin ◽  
M Rostin ◽  
JL Montastruc ◽  
D Dupouy ◽  
...  
Keyword(s):  
Dermatan Sulfate ◽  
Plasma Concentrations ◽  
Volume Of Distribution ◽  
Pharmacokinetic Parameters ◽  
Intravenous Injections ◽  
Routes Of Administration ◽  
Chromogenic Assay ◽  
Interindividual Variations ◽  
Pharmacokinetic Properties ◽  
Hemorrhagic Risk

Dermatan sulfate (DS), a catalyst of the thrombin-heparin cofactor II interaction, has antithrombotic activity and is devoid of significant hemorrhagic risk in several animal models. We investigated the pharmacodynamic and pharmacokinetic properties of DS in humans. DS was injected in single bolus intravenous injections of four increasing doses (0.5, 1, 1.5, 2 mg/kg) to six healthy volunteers. The resulting anticoagulant activities were assessed by the activated partial thromboplastin time (APTT) and the thrombin clotting time (TCT). There were dose-dependent prolongations of the APTT and TCT, and the anticoagulant activities disappeared in less than three hours. The pharmacokinetic parameters were calculated from the plasma concentrations of DS measured with a new chromogenic assay. The volume of distribution was approximately 1.8 times greater than the theoretical plasma volume and was independent of dose. In contrast, the clearance decreased with dose and the terminal half-life ranged from 0.45 +/- 0.08 hours at 0.5 mg/kg to 0.72 +/- 0.11 hours (mean +/- SD) at 2 mg/kg. The bioavailabilities of subcutaneous (SC) and intramuscular (IM) administration relative to those of intravenous administration were determined in 12 other volunteers. The respective bioavailabilities were 24.7% +/- 12.9% and 12.4% +/- 9.2% for SC and IM administration. There was no detectable change in the APTT and the TCT when the volunteers were injected with 1.5 mg/kg SC or IM. In addition, the pharmacokinetic parameters derived from plasma concentrations of DS showed considerable interindividual variations by the two later routes of administration. Peak concentrations were noted 2.7 +/- 1.3 hours after SC injection and 4.3 +/- 4.9 hours after IM injection. The average peak concentrations were 0.7 +/- 0.3 and 0.4 +/- 0.2 mg/L after SC and IM injections, respectively. The half-lives of DS were 7.9 +/- 6.5 hours (SC) and 6.3 +/- 7.4 hours (IM). No adverse reaction to DS was recorded during this study.

Absence of drug–drug interactions between γ-hydroxybutyric acid (GHB) and cobicistat

2021 ◽  
Author(s):  
José Moltó ◽  
Lucía Bailón ◽  
Clara Pérez-Mañá ◽  
Ester Papaseit ◽  
Cristina Miranda ◽  
...  
Keyword(s):  
Drug Interactions ◽  
Treatment Period ◽  
Day Treatment ◽  
Subjective Effects ◽  
Plasma Concentrations ◽  
Pharmacokinetic Parameters ◽  
People Living With Hiv ◽  
Hydroxybutyric Acid ◽  
Ct Number ◽  
Double Blind

Abstract Objectives Potential interactions between CYP3A4 inhibitors and γ-hydroxybutyric acid (GHB) have been suggested as a possible explanation for cases of GHB overdose in recent years among people living with HIV engaged in chemsex. Our objective was to assess the effect of cobicistat on the pharmacokinetics of GHB. Methods Fifteen healthy adults were enrolled in this randomized, double-blind, placebo-controlled, two-arm, crossover clinical trial. Participants underwent two 5 day treatment periods with at least a 1 week washout period between them. In each treatment period, participants received cobicistat (150 mg q24h orally) or matched placebo. On day 5 of each treatment period, participants were given a single oral dose of GHB (25 mg/kg). Plasma concentrations of GHB, subjective effects, blood pressure, heart rate and oxygen saturation were monitored for 5 h after dosing. GHB pharmacokinetic and pharmacodynamic parameters were calculated for each participant during each study period by non-compartmental analysis and were compared using linear mixed-effects models. The study was registered at https://www.clinicaltrialsregister.eu (Eudra-CT number 2019-002122-71) and at https://clinicaltrials.gov (NCT04322214). Results Ten participants completed the two study periods. No drug-related adverse events that necessitated subject withdrawal or medical intervention occurred during the study. Compared with placebo, none of the primary pharmacokinetic parameters of GHB was substantially changed by the administration of GHB with cobicistat. Similarly, no differences regarding subjective or physiological effects were observed when GHB was administered alone or with cobicistat. Conclusions Neither pharmacokinetic nor pharmacodynamic drug–drug interactions between cobicistat and GHB were identified in this study.

scholarly journals Population Pharmacokinetics of Lumefantrine in Pregnant Women Treated with Artemether-Lumefantrine for Uncomplicated Plasmodium falciparum Malaria

2009 ◽  
Vol 53 (9) ◽  
pp. 3837-3846 ◽  
Author(s):  
Joel Tarning ◽  
Rose McGready ◽  
Niklas Lindegardh ◽  
Elizabeth A. Ashley ◽  
Mupawjay Pimanpanarak ◽  
...  
Keyword(s):  
Plasmodium Falciparum ◽  
Pregnant Women ◽  
Population Pharmacokinetics ◽  
Plasma Concentrations ◽  
Plasmodium Falciparum Malaria ◽  
Volume Of Distribution ◽  
Pharmacokinetic Parameters ◽  
Population Pharmacokinetic ◽  
Increased Risk ◽  
Pharmacokinetic Properties

ABSTRACT Artemether-lumefantrine has become one of the most widely used antimalarial drugs in the world. The objective of this study was to determine the population pharmacokinetic properties of lumefantrine in pregnant women with uncomplicated multidrug-resistant Plasmodium falciparum malaria on the northwestern border of Thailand. Burmese and Karen women (n = 103) with P. falciparum malaria and in the second and third trimesters of pregnancy were treated with artemether-lumefantrine (80/480 mg) twice daily for 3 days. All patients provided five capillary plasma samples for drug quantification, and the collection times were randomly distributed over 14 days. The concentration-time profiles of lumefantrine were assessed by nonlinear mixed-effects modeling. The treatment failure rate (PCR-confirmed recrudescent infections at delivery) was high; 16.5% (95% confidence interval, 9.9 to 25.1). The population pharmacokinetics of lumefantrine were described well by a two-compartment open model with first-order absorption and elimination. The final model included interindividual variability in all pharmacokinetic parameters and a linear covariate relationship between the estimated gestational age and the central volume of distribution. A high proportion of all women (40%, 41/103) had day 7 capillary plasma concentrations of <355 ng/ml (which corresponds to approximately <280 ng/ml in venous plasma), a threshold previously associated with an increased risk of therapeutic failure in nonpregnant patients in this area. Predictive modeling suggests that a twice-daily regimen given for 5 days would be preferable in later pregnancy. In conclusion, altered pharmacokinetic properties of lumefantrine contribute to the high rates of failure of artemether-lumefantrine treatment in later pregnancy. Dose optimization is urgently needed.

scholarly journals Safety and Pharmacokinetics of Bevirimat (PA-457), a Novel Inhibitor of Human Immunodeficiency Virus Maturation, in Healthy Volunteers

2007 ◽  
Vol 51 (9) ◽  
pp. 3063-3066 ◽  
Author(s):  
David E. Martin ◽  
Robert Blum ◽  
John Wilton ◽  
Judy Doto ◽  
Hal Galbraith ◽  
...  
Keyword(s):  
Human Immunodeficiency Virus ◽  
Oral Administration ◽  
Half Life ◽  
Peak Plasma ◽  
Plasma Concentrations ◽  
Pharmacokinetic Parameters ◽  
Double Blind Study ◽  
Immunodeficiency Virus ◽  
Oral Doses

ABSTRACT Bevirimat (BVM; formerly known as PA-457) is a novel inhibitor of human immunodeficiency virus (HIV) maturation that is being developed for the treatment of HIV infection. The pharmacokinetics of this agent in healthy male volunteers were studied in a randomized, double-blind study in which the participants received single oral doses of placebo (n = 8) or escalating doses of BVM at 25, 50, 100, or 250 mg (n = 6 per dose); escalation was performed only after the pharmacokinetics and safety of the preceding dose had been evaluated. Plasma was collected over 480 h after dosing and urine was collected over 48 h after dosing for determination of the values of pharmacokinetic parameters. BVM was well absorbed after oral administration, with peak plasma concentrations being achieved 1 to 3 h after dosing. The half-life was 60 to 80 h. The exposure assessed by determination of the peak concentration and the area under the concentration-time curve was dose proportional. Single oral doses of BVM were well tolerated: there were no dose-limiting toxicities, and no serious adverse events were reported. These findings suggest that that BVM offers a favorable pharmacokinetic profile, with predictable pharmacokinetics following the oral administration of single doses. The long half-life of BVM may facilitate once-daily dosing.

scholarly journals Pharmacokinetic Drug–Drug Interactions among Antiepileptic Drugs, Including CBD, Drugs Used to Treat COVID-19 and Nutrients

2021 ◽  
Vol 22 (17) ◽  
pp. 9582
Author(s):  
Marta Karaźniewicz-Łada ◽  
Anna K. Główka ◽  
Aniceta A. Mikulska ◽  
Franciszek K. Główka
Keyword(s):  
Drug Interactions ◽  
Effective Treatment ◽  
Mechanism Of Action ◽  
First Generation ◽  
Pharmacokinetic Parameters ◽  
Effective Management ◽  
Important Group ◽  
New Challenges ◽  
Potential Interactions ◽  
Pharmacokinetic Drug

Anti-epileptic drugs (AEDs) are an important group of drugs of several generations, ranging from the oldest phenobarbital (1912) to the most recent cenobamate (2019). Cannabidiol (CBD) is increasingly used to treat epilepsy. The outbreak of the SARS-CoV-2 pandemic in 2019 created new challenges in the effective treatment of epilepsy in COVID-19 patients. The purpose of this review is to present data from the last few years on drug–drug interactions among of AEDs, as well as AEDs with other drugs, nutrients and food. Literature data was collected mainly in PubMed, as well as google base. The most important pharmacokinetic parameters of the chosen 29 AEDs, mechanism of action and clinical application, as well as their biotransformation, are presented. We pay a special attention to the new potential interactions of the applied first-generation AEDs (carbamazepine, oxcarbazepine, phenytoin, phenobarbital and primidone), on decreased concentration of some medications (atazanavir and remdesivir), or their compositions (darunavir/cobicistat and lopinavir/ritonavir) used in the treatment of COVID-19 patients. CBD interactions with AEDs are clearly defined. In addition, nutrients, as well as diet, cause changes in pharmacokinetics of some AEDs. The understanding of the pharmacokinetic interactions of the AEDs seems to be important in effective management of epilepsy.

scholarly journals Pharmacodynamics and pharmacokinetics of dermatan sulfate in humans

Blood ◽  
1989 ◽  
Vol 74 (5) ◽  
pp. 1577-1582 ◽  
Author(s):  
F Dol ◽  
G Houin ◽  
M Rostin ◽  
JL Montastruc ◽  
D Dupouy ◽  
...  
Keyword(s):  
Dermatan Sulfate ◽  
Plasma Concentrations ◽  
Volume Of Distribution ◽  
Pharmacokinetic Parameters ◽  
Intravenous Injections ◽  
Routes Of Administration ◽  
Chromogenic Assay ◽  
Interindividual Variations ◽  
Pharmacokinetic Properties ◽  
Hemorrhagic Risk

Abstract Dermatan sulfate (DS), a catalyst of the thrombin-heparin cofactor II interaction, has antithrombotic activity and is devoid of significant hemorrhagic risk in several animal models. We investigated the pharmacodynamic and pharmacokinetic properties of DS in humans. DS was injected in single bolus intravenous injections of four increasing doses (0.5, 1, 1.5, 2 mg/kg) to six healthy volunteers. The resulting anticoagulant activities were assessed by the activated partial thromboplastin time (APTT) and the thrombin clotting time (TCT). There were dose-dependent prolongations of the APTT and TCT, and the anticoagulant activities disappeared in less than three hours. The pharmacokinetic parameters were calculated from the plasma concentrations of DS measured with a new chromogenic assay. The volume of distribution was approximately 1.8 times greater than the theoretical plasma volume and was independent of dose. In contrast, the clearance decreased with dose and the terminal half-life ranged from 0.45 +/- 0.08 hours at 0.5 mg/kg to 0.72 +/- 0.11 hours (mean +/- SD) at 2 mg/kg. The bioavailabilities of subcutaneous (SC) and intramuscular (IM) administration relative to those of intravenous administration were determined in 12 other volunteers. The respective bioavailabilities were 24.7% +/- 12.9% and 12.4% +/- 9.2% for SC and IM administration. There was no detectable change in the APTT and the TCT when the volunteers were injected with 1.5 mg/kg SC or IM. In addition, the pharmacokinetic parameters derived from plasma concentrations of DS showed considerable interindividual variations by the two later routes of administration. Peak concentrations were noted 2.7 +/- 1.3 hours after SC injection and 4.3 +/- 4.9 hours after IM injection. The average peak concentrations were 0.7 +/- 0.3 and 0.4 +/- 0.2 mg/L after SC and IM injections, respectively. The half-lives of DS were 7.9 +/- 6.5 hours (SC) and 6.3 +/- 7.4 hours (IM). No adverse reaction to DS was recorded during this study.

scholarly journals Evaluation of a Potential Metabolism-Mediated Drug-Drug Interaction Between Atomoxetine and Bupropion in Healthy Volunteers

2016 ◽  
Vol 19 (2) ◽  
pp. 198 ◽  
Author(s):  
Ioana Todor ◽  
Adina Popa ◽  
Maria Neag ◽  
Dana Muntean ◽  
Corina Bocsan ◽  
...  
Keyword(s):  
Healthy Volunteers ◽  
Plasma Concentrations ◽  
Systemic Exposure ◽  
Pharmacokinetic Profile ◽  
Pharmacokinetic Parameters ◽  
Open Label ◽  
Cyp2d6 Activity ◽  
The Mean ◽  
The Impact ◽  
Pharmacokinetic Drug

Purpose: To evaluate the impact of bupropion on the pharmacokinetic profile of atomoxetine and its main active metabolite (glucuronidated form), 4-hydroxyatomoxetine-O-glucuronide, in healthy volunteers. Methods: An open-label, non-randomized, two-period, sequential clinical trial was conducted as follows: during Period I (Reference), each volunteer received a single oral dose of 25 mg atomoxetine, whilst during Period II (Test), a combination of 25 mg atomoxetine and 300 mg bupropion was administered to all volunteers, after a pretreatment regimen with bupropion for 7 days. Next, after determining atomoxetine and 4-hydroxyatomoxetine-O-glucuronide plasma concentrations, their pharmacokinetic parameters were calculated using a noncompartmental method and subsequently compared to determine any statistically significant differences between the two periods. Results: Bupropion intake influenced all the pharmacokinetic parameters of both atomoxetine and its metabolite. For atomoxetine, Cmax increased from 226±96.1 to 386±137 ng/mL and more importantly, AUC0-∞ was significantly increasedfrom 1580±1040 to 8060±4160 ng*h/mL, while the mean t1/2 was prolonged after bupropion pretreatment. For 4-hydroxyatomoxetine-O-glucuronide, Cmax and AUC0-∞  were decreased from 707±269 to 212±145 ng/mL and from 5750±1240 to 3860±1220 ng*h/mL, respectively. Conclusions: These results demonstrated that the effect of bupropion on CYP2D6 activity was responsible for an increased systemic exposure to atomoxetine (5.1-fold) and also for a decreased exposure to its main metabolite (1.5-fold). Additional studies are required in order to evaluate the clinical relevance of this pharmacokinetic drug interaction.This article is open to POST-PUBLICATION REVIEW. Registered readers (see “For Readers”) may comment by clicking on ABSTRACT on the issue’s contents page.

Therapeutic drug monitoring of old and newer anti-epileptic drugs

2004 ◽  
Vol 42 (11) ◽  
Author(s):  
Hugo M. Neels ◽  
Ann C. Sierens ◽  
Kristine Naelaerts ◽  
Simon L. Scharpé ◽  
George M. Hatfield ◽  
...  
Keyword(s):  
Therapeutic Drug Monitoring ◽  
Drug Interactions ◽  
Drug Monitoring ◽  
Seizure Control ◽  
Plasma Concentrations ◽  
Therapeutic Drug ◽  
Potential Value ◽  
Pharmacokinetic Properties ◽  
New Generation ◽  
The Relationship

AbstractThe aim of the present paper is to provide information concerning the setting up and interpretation of therapeutic drug monitoring (TDM) for anti-epileptic drugs. The potential value of TDM for these drugs (including carbamazepine, clobazam, clonazepam, ethosuximide, felbamate, gabapentin, lamotrigine, levetiracetam, oxcarbazepine, pheneturide, phenobarbital, phenytoin, primidone, tiagabine, topiramate, valproic acid, vigabatrin and zonisamide) is discussed in relation to their mode of action, drug interactions and their pharmacokinetic properties. The review is based upon available literature data and on observations from our clinical practice. Up until approximately 15 years ago anti-epileptic therapeutics were restricted to a very few drugs that were developed in the first half of the 20th century. Unfortunately, many patients were refractory to these drugs and a new generation of drugs has been developed, mostly as add-on therapy. Although the efficacy of the newer drugs is no better, there is an apparent improvement in drug tolerance, combined with a diminished potential for adverse drug interactions. All new anticonvulsant drugs have undergone extensive clinical studies, but information on the relationship between plasma concentrations and effects is scarce for many of these drugs. Wide ranges in concentrations have been published for seizure control and toxicity. Few studies have been undertaken to establish the concentration-effect relationship. This review shows that TDM may be helpful for a number of these newer drugs.

scholarly journals Bioavailability and Population Pharmacokinetics of Voriconazole in Lung Transplant Recipients

2010 ◽  
Vol 54 (10) ◽  
pp. 4424-4431 ◽  
Author(s):  
K. Han ◽  
B. Capitano ◽  
R. Bies ◽  
B. A. Potoski ◽  
S. Husain ◽  
...  
Keyword(s):  
Lung Transplant ◽  
Drug Exposure ◽  
Plasma Concentrations ◽  
Early Postoperative Period ◽  
Pharmacokinetic Parameters ◽  
Time Curve ◽  
Transplant Patients ◽  
Postoperative Time ◽  
Trough Concentrations ◽  
Oral Doses

ABSTRACT This study was undertaken to characterize the pharmacokinetics and bioavailability of voriconazole in adult lung transplant patients during the early postoperative period, identify factors significantly associated with various pharmacokinetic parameters, and make recommendations for adequate dosing regimens. Thirteen lung transplant patients received two intravenous infusions (6 mg/kg, twice daily [b.i.d.]) immediately posttransplant followed by oral doses (200 mg, b.i.d.) for prophylaxis. Blood samples (9/interval) were collected during one intravenous and one oral dosing interval from each patient. Voriconazole plasma concentrations were measured by high-pressure liquid chromatography (HPLC). NONMEM was used to develop pharmacokinetic models, evaluate covariate relationships, and perform Monte Carlo simulations. There was a good correlation (R 2 = 0.98) between the area under the concentration-time curve specific for the dose evaluated (AUC0-∞) and trough concentrations. A two-compartment model adequately described the data. Population estimates of bioavailability, clearance, Vc , and Vp were 45.9%, 3.45 liters/h, 54.7 liters, and 143 liters. Patients with cystic fibrosis (CF) exhibited a significantly lower bioavailability (23.7%, n = 3) than non-CF patients (63.3%, n = 10). Bioavailability increased with postoperative time and reached steady levels in about 1 week. Vp increased with body weight. Bioavailability of voriconazole is substantially lower in lung transplant patients than non-transplant subjects but significantly increases with postoperative time. CF patients exhibit significantly lower bioavailability and exposure of voriconazole and therefore need higher doses. Intravenous administration of voriconazole during the first postoperative day followed by oral doses of 200 mg or 400 mg appeared to be the optimal dosing regimen. However, voriconazole levels should be monitored, and the dose should be individualized based on trough concentrations as a good measure of drug exposure.

Pharmacokinetic Properties of Moracin C in Mice

Planta Medica ◽  
2021 ◽  
Author(s):  
Byoung Hoon You ◽  
Melanayakanakatte Kuberappa BasavanaGowda ◽  
Jae Un Lee ◽  
Young-Won Chin ◽  
Won Jun Choi ◽  
...  
Keyword(s):  
Plasma Concentration ◽  
Plasma Concentrations ◽  
Disease Model ◽  
Pharmacokinetic Parameters ◽  
High Concentration ◽  
In Vivo Evaluation ◽  
Dosage Regimens ◽  
Pharmacokinetic Properties ◽  
Multiple Treatments

AbstractMoracin C from Morus alba fruits, also known as the mulberry, has been proven to exhibit inhibitory activities against lipoxygenase enzymes, TNF-α and interleukin-1β secretion, and proprotein convertase subtilisin/kexin type 9 expression. Despite the various pharmacological activities of moracin C, its pharmacokinetic characteristics have yet to be reported. Here, the pharmacokinetic parameters and tissue distribution of moracin C have been investigated in mice, and the plasma concentration of moracin C with multiple dosage regimens was simulated via pharmacokinetic modeling. Our results showed that moracin C was rapidly and well absorbed in the intestinal tract, and was highly distributed in the gastrointestinal tract, liver, kidneys, and lungs. Moracin C was distributed in the ileum, cecum, colon, and liver at a relatively high concentration compared with its plasma concentration. It was extensively metabolized in the liver and intestine, and its glucuronidated metabolites were proposed. In addition, the simulated plasma concentrations of moracin C upon multiple treatments (i.e., every 12 and 24 h) were suggested. We suggest that the pharmacokinetic characteristics of moracin C would be helpful to select a disease model for in vivo evaluation. The simulated moracin C concentrations under various dosage regimens also provide helpful knowledge to support its pharmacological effect.

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