نتایج جستجو برای: Theophylline

تعداد نتایج: 3517  

Journal: :Talanta open 2021

In this overview, we explore the electroanalytical determination of theophylline. Theophylline finds use as a bronchodilator for treating diseases such asthma and chronic obstructive pulmonary disease (COPD). There is need to measure concentration theophylline in pharmaceuticals QA/QC purposes well plasma samples ensure doses are at correct therapeutic levels. If levels deviate from (10–20 µg/m...

Journal: :Indian Journal of Pharmaceutical Education and Research 2021

Abstract: Objectives: A systematic study is required to enhance the solubility of insoluble fluid drugs that are only sparingly soluble. Hydrotropy may be a distinctive development reinforce liquid poorly water-soluble drugs. Materials and Methods: The term hydrotropic has been wont designate rise in assorted substances water because presence enormous amounts additives. Sodium salicylate, sodiu...

جعفری آهنگری, یوسف , عبدالله پور, روح الله , قره ویسی, شهاب الدین , هاشمیان, سیده مریم ,

This study was conducted to consider the effect of theophylline in laying and some of egg characteristics on laying hens. Commercial egg type Hy-Line hens were used in a completely randomize design with 4 treatments and 3 replicates for 50 days period. The levels of different theophylline supplements (treatment) were 0 (control), one, three, and five mg per kg of body weight for 50 days. The av...

Journal: :Journal of pharmacological sciences 2008
Shigekazu Watanabe Jun Yamakami Masao Tsuchiya Tomoko Terajima Junko Kizu Seiji Hori

Although theophylline has been suggested to have an anti-inflammatory effect, there have been few reports to show the in vivo effect and the mechanism of anti-inflammatory activity of theophylline experimentally. To reveal the anti-inflammatory activity of theophylline, we studied the effect of theophylline and its metabolites on carrageenan-induced edema in rat foot pad. Subcutaneous injection...

Journal: :Antimicrobial agents and chemotherapy 1987
S L Gregoire T H Grasela J P Freer K J Tack J J Schentag

The influence of multiple doses of ofloxacin (ORF 18489) on the disposition of theophylline was studied in 15 male volunteers. Subjects were confined in the Clinical Research Unit for 13 days and given a xanthine-free diet. A single dose (3 mg/kg) of theophylline was given orally, and blood samples were collected at fixed time intervals for 36 h. The concentrations of theophylline were measured...

Journal: :Clinical chemistry 1978
J A Owen K Nakatsu

A spectrophotometric assay procedure is described for individually measuring theophylline-7-acetic acid and theophylline in 2.0 ml of serum. Absorbance is a linear function of concentration over a range of 0.5-40 mg/liter for theophylline-7-acetic acid and 0.5-40 mg/liter for theophylline. No endogenous or exogenous compounds were found that interfere with theophylline-7-acetic acid determinati...

Journal: :Thorax 1981
J A Fleetham C E Bird K Nakatsu R D Wigle P W Munt

Dose-dependency in theophylline pharmacokinetics and protein binding characteristics was examined in 10 healthy male volunteers. Theophylline disposition was determined after an intravenous infusion of both 1 mg/kg and 6 mg/kg aminophylline in a randomised crossover study. There was considerable intrasubject variability in theophylline clearance but no significant dose-dependency. Theophylline ...

ژورنال: یافته 2009
حبیبی خراسانی, سید عبدالرحیم , احمدی نژاد, مهدی , سهروردی, سید مجتبی, مومنایی, رضا ,

Background: Theophylline is one of the oldest drugs that is used to treat asthma and COPD. Theophylline metabolism can alter by some of the drugs and diseases. Severe theophylline side effects are usually related to plasma concentration higher than 20 mg/L. The present study was done to determine aminophylline clearance and the drug use evaluation in Afzalipour hospital. Materials and Metho...

Background and Objective: Evidence about the effect of theophylline and gabapentin on post-spinal headache is rare. Therefore, in this study, we compared the effect of gabapentin and theophylline on post-spinal headache after cesarean section. Materials and Methods: We conducted a double-blind randomized clinical trial on 120 pregnant women, who underwent spinal anesthesia due to cesarean sect...

Journal: :Journal of clinical pharmacology 1985
G R Grambau C E Johnson P F Conlon J G Weg

A lthough theophylline has long been the primary drug used for the management of reversible obstructive airway disease, current recommendations for determining theophylline dosage have not been dependable and, when applied to individual patients, have resulted in a wide range of serum theophylline concentrations (STC) and frequent adverse reactions.1-3 The objective of this study was to evaluat...

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