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Sommerfeldt J, Sartorius H, von Sarnowski B, Klein S, Ritter CA. Drug administration via feeding tubes-a procedure that carries risks: systematic identification of critical factors based on commonly administered drugs in a cohort of stroke patients. Eur J Clin Pharmacol 2024:10.1007/s00228-024-03723-4. [PMID: 39073438 DOI: 10.1007/s00228-024-03723-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 06/23/2024] [Indexed: 07/30/2024]
Abstract
PURPOSE Drug administration via feeding tubes is considered a process with many uncertainties. This review aimed to give a comprehensive overview of data available on feeding tube application and to carry out risk assessments for drug substances commonly administered to stroke patients. METHODS Drugs frequently administered via feeding tubes were identified through a retrospective analysis of discharge letters from a stroke unit. Physicochemical, pharmacokinetic, and stability properties of these drugs and data on drug-enteral nutrition interactions were systematically searched for in the European Pharmacopoeia, Hagers Handbook of Pharmaceutical Practice, Birchers clinical-pharmacological data compilation, and the Martindale Complete Drug Reference, as well as from databases including DrugBank, DrugDex, PubChem, Google Scholar, and PubMed. RESULTS Of the drugs most commonly administered via feeding tubes in the present stroke patient cohort, bisoprolol, candesartan, and ramipril could be considered the least critical due to their overall favourable properties. Acetylsalicylic acid, amlodipine, hydrochlorothiazide, omeprazole and esomeprazole, simvastatin, and torasemide pose risks based on pH or light-dependent instability or proposed food effects. The most critical drugs to be administered via feeding tubes are considered to be furosemide, levodopa, and levothyroxine as they show relevant instabilities under administration conditions and substantial food effects; the latter two even possess a narrow therapeutic index. However, little information is available on drug-tube and drug-formula interactions. CONCLUSION Feeding tube administration of medications turned out to be a highly complex process with several unmet risks. Therefore, investigations that systematically assess these risk factors using clinically relevant model systems are urgently needed.
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Affiliation(s)
- Jana Sommerfeldt
- University of Greifswald, Institute of Pharmacy, Clinical Pharmacy, Greifswald, Germany
| | - Hannes Sartorius
- University of Greifswald, Institute of Pharmacy, Clinical Pharmacy, Greifswald, Germany
| | | | - Sandra Klein
- University of Greifswald, Institute of Pharmacy, Biopharmaceutics and Pharmaceutical Technology, Greifswald, Germany
| | - Christoph A Ritter
- University of Greifswald, Institute of Pharmacy, Clinical Pharmacy, Greifswald, Germany.
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Sharma S, Mettu VS, Prasad B. Interplay of Breast Cancer Resistance Protein (Bcrp/Abcg2), Sex, and Fed State in Oral Pharmacokinetic Variability of Furosemide in Rats. Pharmaceutics 2023; 15:pharmaceutics15020542. [PMID: 36839862 PMCID: PMC9968170 DOI: 10.3390/pharmaceutics15020542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/20/2023] [Accepted: 02/03/2023] [Indexed: 02/10/2023] Open
Abstract
Poor and variable oral bioavailability of furosemide (FUR) presents critical challenges in pharmacotherapy. We investigated the interplay of breast cancer resistance protein (Bcrp)-mediated transport, sex, and fed state on FUR pharmacokinetics (PK) in rats. A crossover PK study of FUR (5 mg/kg, oral) was performed in Sprague-Dawley rats (3 males and 3 females), alone or with a Bcrp inhibitor, novobiocin (NOV) (20 mg/kg, oral), in both fed and fasted states. Co-administration of NOV significantly increased FUR extent (AUC) and rate (Cmax) of exposure by more than two-fold, which indicates efficient Bcrp inhibition in the intestine. The female rats showed two-fold higher AUC and Cmax, and two-fold lower renal clearance of FUR compared to the male rats. The latter was correlated with higher renal abundance of Bcrp and organic anion transporters (Oats) in the male rats compared to age-matched female rats. These findings suggest that the PK of Bcrp and/or Oat substrates could be sex-dependent in rats. Moreover, allometric scaling of rat PK and toxicological data of Bcrp substrates should consider species and sex differences in Bcrp and Oat abundance in the kidney. Considering that Bcrp is abundant in the intestine of rats and humans, a prospective clinical study is warranted to evaluate the effect of Bcrp inhibition on FUR PK. The potential confounding effect of the Bcrp transporter should be considered when FUR is used as a clinical probe of renal organic anion transporter-mediated drug-drug interactions. Unlike human data, no food-effect was observed on FUR PK in rats.
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Affiliation(s)
| | | | - Bhagwat Prasad
- Correspondence: ; Tel.: +1-(509)-358-7739; Fax: +1-509-368-6561
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DuBois BN, Pearson J, Mahmood T, Nguyen D, Thornburg K, Cherala G. Perinatal growth restriction decreases diuretic action of furosemide in adult rats. Eur J Pharmacol 2014; 728:39-47. [PMID: 24508521 DOI: 10.1016/j.ejphar.2014.01.056] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 01/28/2014] [Accepted: 01/29/2014] [Indexed: 10/25/2022]
Abstract
Perinatal growth restriction programs higher risk for chronic disease during adulthood via morphological and physiological changes in organ systems. Perinatal growth restriction is highly correlated with a decreased nephron number, altered renal function and subsequent hypertension. We hypothesize that such renal maladaptations result in altered pharmacologic patterns for life. Maternal protein restriction during gestation and lactation was used to induce perinatal growth restriction in the current study. The diuretic response of furosemide (2mg/kg single i.p. dose) in perinatally growth restricted rats during adulthood was investigated. Diuresis, natriuresis and renal excretion of furosemide were significantly reduced relative to controls, indicative of decreased efficacy. While a modest 12% decrease in diuresis was observed in males, females experienced 26% reduction. It is important to note that the baseline urine output and natriuresis were similar between treatment groups. The in vitro renal and hepatic metabolism of furosemide, the in vivo urinary excretion of the metabolite, and the expression of renal drug transporters were unaltered. Creatinine clearance was significantly reduced by 15% and 19% in perinatally growth restricted male and female rats, respectively. Further evidence of renal insufficiency was suggested by decreased uric acid clearance. Renal protein expression of sodium-potassium-chloride cotransporter, a pharmacodynamic target, was unaltered. In summary, perinatal growth restriction could permanently imprint pharmacokinetic processes affecting drug response.
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Affiliation(s)
- Barent N DuBois
- Department of Pharmacy Practice, College of Pharmacy, Oregon State University/Oregon Health & Science University, 3303, SW Bond Avenue, CH12C, Portland, OR 97239, USA
| | - Jacob Pearson
- Department of Pharmacy Practice, College of Pharmacy, Oregon State University/Oregon Health & Science University, 3303, SW Bond Avenue, CH12C, Portland, OR 97239, USA
| | - Tahir Mahmood
- Department of Pharmacy Practice, College of Pharmacy, Oregon State University/Oregon Health & Science University, 3303, SW Bond Avenue, CH12C, Portland, OR 97239, USA
| | - Duc Nguyen
- Department of Pharmacy Practice, College of Pharmacy, Oregon State University/Oregon Health & Science University, 3303, SW Bond Avenue, CH12C, Portland, OR 97239, USA
| | - Kent Thornburg
- Center for Developmental Health, Oregon Health & Science University, Portland, OR 97239, USA; Department of Obstetrics & Gynecology, School of Medicine, Oregon Health & Science University, Portland, OR 97239, USA
| | - Ganesh Cherala
- Department of Pharmacy Practice, College of Pharmacy, Oregon State University/Oregon Health & Science University, 3303, SW Bond Avenue, CH12C, Portland, OR 97239, USA; Center for Developmental Health, Oregon Health & Science University, Portland, OR 97239, USA; Department of Obstetrics & Gynecology, School of Medicine, Oregon Health & Science University, Portland, OR 97239, USA.
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Kaminska E, Adrjanowicz K, Kaminski K, Wlodarczyk P, Hawelek L, Kolodziejczyk K, Tarnacka M, Zakowiecki D, Kaczmarczyk-Sedlak I, Pilch J, Paluch M. A new way of stabilization of furosemide upon cryogenic grinding by using acylated saccharides matrices. The role of hydrogen bonds in decomposition mechanism. Mol Pharm 2013; 10:1824-35. [PMID: 23510208 DOI: 10.1021/mp300606p] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Recently it was reported that upon mechanical milling of pure furosemide significant chemical degradation occurs (Adrjanowicz et al. Pharm. Res.2011, 28, 3220-3236). In this paper, we present a novel way of chemical stabilization amorphous furosemide against decomposing that occur during mechanical treatment by preparing binary mixtures with acylated saccharides. To get some insight into the mechanism of chemical degradation of furosemide induced by cryomilling, experimental investigations supported by density functional theory (DFT) computations were carried out. This included detailed studies on molecular dynamics and physical properties of cryoground samples. The main thrust of our paper is that we have shown that furosemide cryomilled with acylated saccharides forms chemically and physically stable homogeneous mixtures with only one glass transition temperature, Tg. Finally, solubility measurements have demonstrated that furosemide cryomilled with acylated saccharides (glucose, maltose and sucrose) is much more soluble with respect to the crystalline form of this active pharmaceutical ingredient (API).
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Affiliation(s)
- E Kaminska
- Department of Pharmacognosy and Phytochemistry, Medical University of Silesia, ul. Jagiellonska 4, 41-200 Sosnowiec, Poland.
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Adrjanowicz K, Kaminski K, Grzybowska K, Hawelek L, Paluch M, Gruszka I, Zakowiecki D, Sawicki W, Lepek P, Kamysz W, Guzik L. Effect of cryogrinding on chemical stability of the sparingly water-soluble drug furosemide. Pharm Res 2011; 28:3220-36. [PMID: 21706267 PMCID: PMC3229691 DOI: 10.1007/s11095-011-0496-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2010] [Accepted: 05/27/2011] [Indexed: 11/25/2022]
Abstract
PURPOSE To investigate the effect of cryogrinding on chemical stability of the diuretic agent furosemide and its mixtures with selected excipients. METHODS Furosemide was ground at liquid nitrogen temperature for 30, 60, 120 and 180 min. Mixtures of furosemide-PVP and furosemide-inulin (1:1) were milled under cryogenic conditions. Materials were analyzed by XRD, UPLC, MS and NMR. RESULTS Upon increasing the milling time, a significant build-up of an unidentified impurity 1, probably the main degradation product, was noticed. Cogrinding of furosemide with PVP and inulin worsened chemical stabilization of the pharmaceutical. The main degradation product formed upon cryomilling was subsequently identified as 4-chloro-5-sulfamoylanthranilic acid (CSA). Based on some theoretical considerations involving specific milling conditions, the milling intensity and an expected specific milling dose have been calculated. Results indicate that cryogenic grinding is capable to initiate mechanically induced decomposition of furosemide. CONCLUSIONS Cryogenic grinding can activate and accelerate not only structural changes (solid state amorphization) but also chemical decomposition of pharmaceuticals. A cryogenic milling device should be considered as a chemical reactor, where under favourable conditions chemical reactions could be mechanically initiated.
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Affiliation(s)
- Karolina Adrjanowicz
- Department of Biophysics and Molecular Physics, Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland.
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Abstract
Food significantly affects the pharmacokinetics of oral loop diuretics in healthy individuals, but studies have not been performed in patients with edema. Because of this omission, food's effect on pharmacokinetics has been overlooked and may decrease the pharmacodynamic response in patients who rely on diuretics. Despite this potential interaction, reference manuals do not provide warnings about the effects of food on loop diuretic absorption. We reviewed the published human studies investigating the effects of food on loop diuretics. Peak plasma concentrations and urinary recovery were significantly decreased when taken with food, but only one study showed a corresponding decrease in total urine output, which is likely related to the diuretic threshold effect. These healthy subjects probably were always above the diuretic threshold under both fed and fasting conditions and thus could not augment their urine output. Based on these data in healthy subjects, the special implications for patients who routinely take diuretics are discussed. Therefore, food is more likely to have a clinical effect on the diuretic threshold given its effect in healthy subjects and the special considerations for patients with edema. Additional studies are needed to help answer these questions. Until such data are available, the most conservative, effective clinical approach is to administer oral loop diuretics without food.
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Affiliation(s)
- Robert L Bard
- Division of Cardiovascular Medicine, University of Michigan Medical Center, Ann Arbor, Michigan 48109-0356, USA.
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Taburet AM, Tollier C, Richard C. The effect of respiratory disorders on clinical pharmacokinetic variables. Clin Pharmacokinet 1990; 19:462-90. [PMID: 2292169 DOI: 10.2165/00003088-199019060-00004] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Respiratory disorders induce several pathophysiological changes involving gas exchange and acid-base balance, regional haemodynamics, and alterations of the alveolocapillary membrane. The consequences for the absorption, distribution and elimination of drugs are evaluated. Drug absorption after inhalation is not significantly impaired in patients. With drugs administered by this route, an average of 10% of the dose reaches the lungs. It is not completely clear whether changes in pulmonary endothelium in respiratory failure enhance lung absorption. The effects of changes in blood pH on plasma protein binding and volume of distribution are discussed, but relevant data are not available to explain the distribution changes observed in acutely ill patients. Lung diffusion of some antimicrobial agents is enhanced in patients with pulmonary infections. Decreased cardiac output and hepatic blood flow in patients under mechanical ventilation cause an increase in the plasma concentration of drugs with a high hepatic extraction ratio, such as lidocaine (lignocaine). On a theoretical basis, hypoxia should lead to decreased biotransformation of drugs with a low hepatic extraction ratio, but in vivo data with phenazone (antipyrine) or theophylline are conflicting. The effects of disease on the lung clearance of drugs are discussed but clinically relevant data are lacking. The pharmacokinetics of drugs in patients with asthma or chronic obstructive pulmonary disease are reviewed. Stable asthma and chronic obstructive pulmonary disease do not appear to affect the disposition of theophylline or beta 2-agonists such as salbutamol (albuterol) or terbutaline. Important variations in theophylline pharmacokinetics have been reported in critically ill patients, the causes of which are more likely to be linked to the poor condition of the patients than to a direct effect of hypoxia or hypercapnia. Little is known regarding the pharmacokinetics of cromoglycate, ipratropium, corticoids or antimicrobial agents in pulmonary disease. In patients under mechanical ventilation, the half-life of midazolam, a new benzodiazepine used as a sedative, has been found to be lengthened but the underlying mechanism is not well understood. Pulmonary absorption of pentamidine was found to be increased in patients under mechanical ventilation. Pharmacokinetic impairment does occur in patients with severe pulmonary disease but more work is needed to understand the exact mechanisms and to propose proper dosage regimens.
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Affiliation(s)
- A M Taburet
- Clinical Pharmacy, Hôpital de Bicêtre, Paris, France
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Hammarlund-Udenaes M, Benet LZ. Furosemide pharmacokinetics and pharmacodynamics in health and disease--an update. JOURNAL OF PHARMACOKINETICS AND BIOPHARMACEUTICS 1989; 17:1-46. [PMID: 2654356 DOI: 10.1007/bf01059086] [Citation(s) in RCA: 74] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The literature on furosemide pharmacokinetics and pharmacodynamics is critically reviewed, concentrating on those papers published subsequent to the 1979 reviews of this topic. Intravenous and oral data are presented for healthy volunteers and for patients with various disease states. It is the latter populations about which the majority of the studies have been published since 1979. Inter- and intraindividual variations in bioavailability are discussed, as are data on the metabolism of furosemide to its glucuronide conjugate. Published studies examining the relationship between furosemide pharmacodynamics and pharmacokinetics are also evaluated. The literature is reviewed through June 1988.
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Affiliation(s)
- M Hammarlund-Udenaes
- Department of Pharmacy, School of Pharmacy, University of California, San Francisco 94143-0446
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