Pharmacokinetics and dose linearity testing of methylprednisolone phosphate.

abstract：:This study assessed steady-state azimilide pharmacokinetics and pharmacodynamics in 119 healthy male and female volunteers. Parallel groups of 18-40-year-old subjects received doses of 35, 100, 150 or 200 mg day(-1) for up to 14 days, with 1, 2 or 3 days of loading. Another group of > 55-year-old subjects received 100...

journal_title：Biopharmaceutics & drug disposition

authors： Corey A,Al-Khalidi H,Brezovic C,Marcello S,Parekh N,Taylor K,Karam R

更新日期：1999-03-01 00:00:00

abstract：:The pharmacokinetics of an intravenous injection of disopyramide was studied in five normal subjects and six patients with varying degrees of renal impairment. The elimination rate constant (beta) was related to the endogenous creatinine clearance (Clcr). However, a decrease in beta was not observed until the Clcr was...

journal_title：Biopharmaceutics & drug disposition

authors： Shen DD,Cunningham JL,Shudo I,Azarnoff DL

更新日期：1980-01-01 00:00:00

abstract：:Betahistine, a potent histamine H3 receptor antagonist, is being developed for the treatment of attention deficit hyperactivity disorder (ADHD) that manifests with symptoms such as hyperactivity, impulsivity and inattention. This study describes the pharmacokinetics of betahistine in ADHD subjects at doses higher than...

journal_title：Biopharmaceutics & drug disposition

authors： Moorthy G,Sallee F,Gabbita P,Zemlan F,Sallans L,Desai PB

更新日期：2015-10-01 00:00:00

abstract：:The purpose of this mechanistic drug interaction study was to investigate the effects of ketoconazole on the pharmacokinetics of safinamide. Ketoconazole was applied as a potent prototypic inhibitor of cytochrome CYP3A4, to determine the role of CYP3A4 in the metabolic clearance of safinamide. In an open-label, random...

journal_title：Biopharmaceutics & drug disposition

authors： Krösser S,Marquet A,Gallemann D,Wolna P,Fauchoux N,Hermann R,Johne A

更新日期：2012-12-01 00:00:00

abstract：:The present study was conducted in order to examine the intranasal administration of verapamil and compare this route to oral and intravenous administration in a 3 way crossover protocol in five dogs. Unanesthetized, adult mongrel dogs were given verapamil intravenously (0.5 mg/kg), orally (2.5 mg/kg) and intranasally...

journal_title：Biopharmaceutics & drug disposition

authors： Arnold TH,Tackett RL,Vallner JJ

更新日期：1985-10-01 00:00:00

abstract：:Equilibrative nucleoside transporters (ENTs) 1 and 2 reportedly accept fluorouracil as a substrate. Here, we evaluated ENT1/2 expression at the messenger RNA (mRNA), protein, and functional levels in a panel of four triple-negative breast cancer (TNBC) cell lines, BT-549, Hs578T, MDA-MB-231, and MDA-MB-435, and we exa...

journal_title：Biopharmaceutics & drug disposition

authors： Noguchi S,Takagi A,Tanaka T,Takahashi Y,Pan X,Kibayashi Y,Mizokami R,Nishimura T,Tomi M

更新日期：2021-01-10 00:00:00

abstract：:Based on the principle of superposition an expression has been established relating a drug concentration at steady-state to a concentration after a single dose. This relationship applies for drugs with linear pharmacokinetics given at equal dosage intervals and it is independent of the route of administration. The rel...

journal_title：Biopharmaceutics & drug disposition

authors： Love BL,Tsuei SE,Thomas J,Nation RL

更新日期：1982-07-01 00:00:00

abstract：:The pharmacokinetics and pharmacodynamics of torasemide were evaluated after intravenous administration of the same total dose of torasemide at a dose of 1mg/kg to rabbits with different infusion times, 1 min (treatment I), 30 min (treatment II) and 2 h (treatment III). The loss of water and electrolytes in urine indu...

journal_title：Biopharmaceutics & drug disposition

authors： Kim YC,Lee MG,Ko SH,Kim SH

更新日期：2004-07-01 00:00:00

abstract：:A pharmacokinetic study of sachets containing nalidixic acid (0.66 g) associated with sodium citrate (3.75 g)--NSC--was carried out in 10 healthy volunteers in order to determine the influence of the urine alcalinization due to sodium citrate on the elimination of nalidixic acid (NA) and its 7-hydroxy (HNA) and 7-carb...

journal_title：Biopharmaceutics & drug disposition

authors： Ferry N,Cuisinaud G,Sassard J,Pozet N,Zech PY

更新日期：1984-07-01 00:00:00

abstract：:Pharmacokinetic compartment models were constructed to describe the absorption and metabolism of dopamine (DA) and DA prodrug, N-(N-acetyl-L-methionyl)0,0-bis-eth-oxycarbonyl) dopamine(1). Plasma concentrations of DA, DA-SO4, and DOPAC after oral administration of DA to dogs, were analysed using the pharmacokinetic mo...

journal_title：Biopharmaceutics & drug disposition

authors： Murata K,Noda K,Kohno K,Samejima M

更新日期：1990-03-01 00:00:00

abstract：:The objective of this study was to investigate the absorption behavior of chikusetsusaponin IVa (CHS-IVa) in the rat intestine using single-pass intestinal perfusion (SPIP) and to classify CHS-IVa into the biopharmaceutics classification system (BCS). The equilibrium solubility of CHS-IVa was determined by the shaker ...

journal_title：Biopharmaceutics & drug disposition

authors： Zhang W,Liu H,Liu C

更新日期：2019-09-01 00:00:00

abstract：:A method for calculating the mean residence times of metabolites in the body, systemic circulation, and peripheral tissue is described. The calculations require the AUC, AUMC, and derivatives of the plasma concentration versus time curves of the metabolite and its precursor. The method is applicable to metabolites wit...

journal_title：Biopharmaceutics & drug disposition

authors： Cheng HY

更新日期：1991-07-01 00:00:00

abstract：:Comparative in vivo studies of aqueous solution, multiple w/o/w, and w/o emulsions showed that formulating 5-fluorouracil in emulsion systems significantly sustained the release of the drug from intramuscular injection sites in the rat. Intramuscular injection of the drug in both w/o and w/o/w emulsion systems produce...

journal_title：Biopharmaceutics & drug disposition

authors： Omotosho JA,Whateley TL,Florence AT

更新日期：1989-05-01 00:00:00

abstract：:Sulfotransferase (SULT) 1A1 and SULT1A3 play important roles in the presystemic inactivation of beta(2) agonists in the liver and intestine, respectively. The study aimed to investigate the inhibitory effects of grapefruit juice, orange juice, green tea, black tea and oolong tea and their constituents on the activitie...

journal_title：Biopharmaceutics & drug disposition

authors： Nishimuta H,Ohtani H,Tsujimoto M,Ogura K,Hiratsuka A,Sawada Y

更新日期：2007-12-01 00:00:00

abstract：BACKGROUND:Mycophenolic acid (MPA) is used widely to prevent graft rejection in kidney-transplant patients. Therapeutic drug monitoring (TDM) in plasma requires an invasive procedure that is inconvenient, especially in pediatric patients. TDM in saliva is a more convenient non-invasive alternative compared with plasma....

journal_title：Biopharmaceutics & drug disposition

authors： Alsmadi MM,Alfarah MQ,Albderat J,Alsalaita G,AlMardini R,Hamadi S,Al-Ghazawi A,Abu-Duhair O,Idkaidek N

更新日期：2019-11-01 00:00:00

abstract：:Remogliflozin etabonate (RE) is the prodrug of remogliflozin (R), an inhibitor of renal glucose transport designed to reduce blood glucose concentrations for the treatment of type 2 diabetes. This open-label, randomized, single-dose, four-way crossover study, (with one add-on arm) in eight healthy men evaluated the re...

journal_title：Biopharmaceutics & drug disposition

authors： O'Connor-Semmes RL,Sandefer EP,Hussey EK,Tao W,Doll WJ,Page RC,Dobbins R

更新日期：2013-03-01 00:00:00

abstract：:The pharmacokinetics and pharmacodynamics of furosemide were investigated after intravenous (i.v.), 1 mg/100 g body weight, and oral administration, 2 mg per 100 g body weight, to spontaneously hypertensive rats (SHRs) and deoxycorticosterone acetate-salt-induced hypertensive rats (DOCA-salt rats). After i.v. administ...

journal_title：Biopharmaceutics & drug disposition

authors： Jang SH,Lee MG,Kim ND

更新日期：1994-04-01 00:00:00

abstract：:Dihydroergotoxine is a mixture of semi-synthetic ergot alkaloids mainly used for age-related cognitive impairment. In this study, dihydroergotoxine (30 microM) was added to incubates of rat and bovine liver microsomes, and the resulting major metabolites were identified as hydroxy-dihydroergocornine, hydroxy-dihydroer...

journal_title：Biopharmaceutics & drug disposition

authors： Bicalho B,Giolo JM,Lilla S,De Nucci G

更新日期：2008-01-01 00:00:00

abstract：:The effect of the combination of a new anticonvulsant drug HEPP and carbamazepine (CBZ) on the pharmacokinetics of HEPP and CBZ was investigated using rabbits as an animal model. The study was performed in 18 male New Zealand white rabbits which were randomly divided into three groups, according to a balanced incomple...

journal_title：Biopharmaceutics & drug disposition

authors： García AL,Medina RL,Pérez MR,Jung CH

更新日期：2003-07-01 00:00:00

abstract：:Regional pharmacokinetics is the study of the drug concentrations in specific regions of the body. It allows greater insight into the mechanisms of drug disposition than the study of systemic blood concentrations. Experimental methods in regional pharmacokinetics and their applications and limitations are reviewed. Po...

journal_title：Biopharmaceutics & drug disposition

authors： Upton RN,Runciman WB,Mather LE

更新日期：1990-12-01 00:00:00

abstract：:In order to examine a potential interaction between isoxicam and propranolol, single 200 mg doses of isoxicam were administered to ten healthy male volunteers before and during treatment with propranolol, gradually attaining a dose of 80 mg t.i.d. for 11 days. The pharmacokinetic profiles of the isoxicam plasma concen...

journal_title：Biopharmaceutics & drug disposition

authors： Caillé G,Larivière L,Lacasse Y,Vézina M,Besner JG

更新日期：1986-01-01 00:00:00

abstract：:The comparative bioavailability and steady state fluctuations resulting from the administration of Tegretol 200 mg commercial tablets and carbamazepine OROS controlled delivery tablets were investigated in 22 adult and 12 pediatric epileptic patients. Tegretol commercial tablets were dosed according to previously esta...

journal_title：Biopharmaceutics & drug disposition

authors： Thakker KM,Mangat S,Garnett WR,Levy RH,Kochak GM

更新日期：1992-11-01 00:00:00

abstract：:The effect of water deprivation on the physiologic, biochemical, and disposition parameters of erythromycin was investigated in rabbits. The packed cell volume, plasma glucose, and total lipid concentration increased significantly in dehydration. The pharmacokinetic parameters of erythromycin after intravenous adminis...

journal_title：Biopharmaceutics & drug disposition

authors： Ahmad M,Niazi SK,Ahmad T,Muzaffar NA,Nawaz M

更新日期：1992-03-01 00:00:00

abstract：:The absorption characteristics of ethiofos were studied using the rat in situ intestine circulating perfusion technique. Slow absorption kinetics were observed for ethiofos with varying rates of absorption and metabolism/degradation in situ as a function of buffer and absorption enhancers. In most cases less than 10 p...

journal_title：Biopharmaceutics & drug disposition

authors： Geary RS,Swynnerton NF,Timmons SF,Mangold DJ

更新日期：1991-05-01 00:00:00

abstract：AIM:The aim of this study was to build and verify a preliminary physiologically based pharmacokinetic (PBPK) model of Chinese pregnant women. The model was used to predict maternal pharmacokinetics (PK) of 6 predominantly renally cleared drugs. METHOD:Based on SimCYP Caucasian pregnancy population dataset, the prelimi...

journal_title：Biopharmaceutics & drug disposition

authors： Song L,Yu Z,Xu Y,Li X,Liu X,Liu D,Zhou T

更新日期：2020-06-01 00:00:00

abstract：:Acute viral infection has long been recognized to down-regulate cytochrome P-450 enzymes and subsequently to result in changes in the pharmacological and toxicological responses to xenobiotics. In our previous research, chronic retrovirus infection induced by inoculating a susceptible strain of mice with LP-BM5 murine...

journal_title：Biopharmaceutics & drug disposition

authors： Chow HH,Tang Y,Li P,Brookshier G,Liang B,Watson R

更新日期：1998-01-01 00:00:00

abstract：:We synthesized 14C-warfarin hexadecyl ether (14C-WHE) by addition of a palmityl moiety to the hydroxyl group at the 4-position of 14C-warfarin, a compound known to bind to serum albumin. 14C-WHE preferentially bound to the lipoproteins, low-density lipoprotein (LDL) and high-density lipoprotein (HDL), in mouse plasma ...

journal_title：Biopharmaceutics & drug disposition

authors： Tokui T,Kuroiwa C,Muramatsu S,Tokui Y,Sasagawa K,Ikeda T,Komai T

更新日期：1995-03-01 00:00:00

abstract：:The purpose of this project was to develop and validate a pharmacokinetic model and to quantify the rate and extent of distribution between plasma and skin of two beta-lactam antibiotics, amoxicillin (AMX) and cefuroxime (CFX), which are frequently administered systemically to treat skin and skin structure infections....

journal_title：Biopharmaceutics & drug disposition

authors： Shukla C,Patel V,Juluru R,Stagni G

更新日期：2009-09-01 00:00:00

abstract：:The definitions of mean residence time of drug molecules in the body (MRT) from the literature are reviewed. A formal definition of MRT, based on excretion of drug molecules and amount of drug, a parameter which is independent of constancy of both clearance and volume of distribution, is introduced and compared to oth...

journal_title：Biopharmaceutics & drug disposition

authors： Kasuya Y,Hirayama H,Kubota N,Pang KS

更新日期：1987-05-01 00:00:00

abstract：:Stobadin dihydrochloride was administered p.o. to rats at a dose of 1 mg kg-1 once daily for 25 consecutive days. The peak and trough concentrations of the sum of stobadin metabolites, determined from Days 6-16 of treatment, demonstrated a steady-state. The mean daily excretion of 3H-radioactivity during this period w...

journal_title：Biopharmaceutics & drug disposition

authors： Kállay Z,Soltés L,Trnovec T

更新日期：1991-04-01 00:00:00