PubMed Journals Articles About "Oxycodone Nalaxone Prolonged Release Tablets Pain" RSS

07:58 EST 19th December 2014 | BioPortfolio

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Showing "Oxycodone nalaxone prolonged release tablets Pain" PubMed Articles 1–25 of 9,700+

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Pain therapy with oxycodone/naloxone prolonged-release combination: case report.

Pain afflicts patients suffering from many chronic diseases and is present in 80% of cases of patients with advanced cancer who suffer from persistent pain. The aim of the pain treatment is to achieve the maximum analgesic effect while minimizing side effects. The main analgesic agent - morphine is unfortunately a therapy associated with gastrointestinal side effects. It appears that the combination of oxycodone and naloxone available as Targin(®) (Mundipharma) is an alternative. The paper presents a case ...

Long-term safety and efficacy of oxycodone/naloxone prolonged-release tablets in patients with moderate-to-severe chronic cancer pain.

To evaluate the long-term safety and efficacy of prolonged-release oxycodone/naloxone (OXN PR) and its impact on quality of life (QoL), in patients with moderate-to-severe cancer pain.

A randomized trial to compare pain control using oral analgesia with epidural analgesia after cesarean section following combined spinal-epidural anesthesia.

This study aimed to evaluate whether combined oral oxycodone hydrochloride controlled-release tablets plus paracetamol and tramadol hydrochloride tablets are more effective than epidural analgesia for postoperative pain control and side effects after cesarean section. We randomly enrolled 60 patients scheduled for cesarean section into either: patient-controlled epidural analgesia with 0.1% ropivacaine + 0.1 μg/mL sufentanil (for postoperative 48 h) + injected pethidine on demand (E group); or controlled-r...

Fixed ratio (2:1) prolonged-release oxycodone/naloxone combination improves bowel function in patients with moderate-to-severe pain and opioid-induced constipation refractory to at least two classes of laxatives.

Abstract Objective: The effects of combined oxycodone/naloxone prolonged release tablets (OXN PR) were investigated in patients with moderate-to-severe chronic cancer-related or non-cancer pain. All patients had opioid-induced constipation (OIC) which persisted despite substantial laxative therapy. Research design and methods: This pooled analysis included 75 patients with OIC at study entry that was refractory to at least two laxatives with different modes of action. Patients completed randomized, double-b...

Tapentadol. Acute or chronic pain: no therapeutic advance.

The standard opioids for relieving moderate to severe pain are: codeine as a step 2 analgesic and morphine for step 3. Tapentadol is an opioid similar to tramadol. An immediate-release form has been authorised in France for moderate to severe acute pain in adults and a sustained-release form for severe chronic pain in adults. It has been evaluated in comparative trials in several types of acute pain: pain following orthopaedic or gynaecological surgery or tooth extraction, and joint pain. These trials were ...

Effect of a Fixed-Dose Opioid Agonist/Antagonist on Constipation in Patients on Long-term Opioids for Non-Malignant Pain Unable to Tolerate Laxatives.

Chronic pain affects a large number of patients throughout the world and impacts greatly on their quality of life, including the ability of a patient to sleep, go to work, and socialize. Guidance on the use of opioids in chronic pain patients is available from the British Pain Society; however, patients receiving opioid treatment for their pain often suffer from symptoms associated with opioid-induced bowel dysfunction (OIBD), including constipation. The usual treatment of constipation in these patients is ...

Oxycodone for neuropathic pain and fibromyalgia in adults.

This review is one of a series on drugs used to treat neuropathic pain and fibromyalgia. These conditions are estimated to affect 3 to 10% of adults, and are difficult to treat. Although they probably have different aetiologies, neuropathic pain and fibromyalgia can respond to the same therapies. There have been substantial changes in the standards of evidence considered necessary for assessment of interventions to treat chronic pain, to provide data that are more robust and clinically relevant. Oxycodone i...

Formulation and bioequivalence of two Valsartan/Amlodipine Immediate release tablets after a single oral administration.

The aim of this study was to formulate a film-coated Valsartan/Amlodipine (VS/AM) immediate release tablets and to evaluate their in vivo release profile. VS/AM core tablets were manufactured using dry granulation method. Opadry aqueous coating dispersion was used as film coating material. Dissolution of the film coated tablets was tested in 900 ml of 0.5% SLS media, bioequivalence of tablets was tested by comparisons against the reference brand product. The ICH guidelines were used to evaluate the stabilit...

Oxycodone vs. Fentanyl Patient-Controlled Analgesia after Laparoscopic Cholecystectomy.

Objectives Oxycodone is semi-synthetic opioid, oral and parenteral preparations have been widely used for acute and chronic pain. The aim of this study was to assess the efficacy and side effects of oxycodone and fentanyl in patient controlled analgesia (PCA) after laparoscopic cholecystectomy. Methods A prospective, randomized, double-blind study was conducted. 81 patients were randomly divided into two groups; fentanyl (10 mcg fentanyl and 1.5 mg ketorolac) and oxycodone group (1 mg oxycodone and 1.5 mg k...

Enhanced GABAergic synaptic transmission at VLPAG neurons and potent modulation by oxycodone in a bone cancer pain model.

We have demonstrated previously that oxycodone had potent antinociceptive effects at supraspinal sites. In this study, we investigated changes in neuronal function and antinociceptive mechanisms of oxycodone at ventrolateral periaqueductal grey (VLPAG) neurons, which are a major site of opioid action, in a femur bone cancer (FBC) model with bone cancer-related pain.

Effect of Tablet Structure on Controlled Release from Supersaturating Solid Dispersions Containing Glyceryl Behenate.

The objective of this study was to evaluate the use of glyceryl behenate as a plasticizer and release modifier in solid dispersion systems containing itraconazole and carbamazepine. Amorphous solid dispersions of high molecular weight polyvinylpyrrolidone were prepared by hot-melt extrusion, the processing of which was improved by the inclusion of glyceryl behenate. Dispersions were milled and subsequently compressed into tablets. Solid dispersions were also prepared by Kinetisol® Dispersing which allowed ...

Pharmacokinetics of oxycodone hydrochloride and three of its metabolites after intravenous administration in Chinese patients with pain.

The aim of this study is to evaluate the pharmacokinetic profile of oxycodone and three of its metabolites, noroxycodone, oxymorphone and noroxymorphone after intravenous administration in Chinese patients with pain.

Two-step irradiance schedule versus single-dose tramadol sustained-release tablets for pain control during topical 5-aminolevulinic acid-photodynamic therapy of condyloma acuminatum in Chinese patients: A randomized comparative study.

Photodynamic therapy with 5-aminolevulinic acid (ALA-PDT) offers promising results for the treatment of condyloma acuminatum. However, patients have to dwell with pain to benefit from this otherwise effective and safe "off-label" treatment modality. Several techniques have been explored to control ALA-PDT-induced pain, but the desperate search for a universally accepted method is still ongoing. This study compares the two-step irradiance approach with single-dose administration of 100 mg tramadol sustaine...

Formulation and evaluation of fixed-dose combination of bilayer gastroretentive matrix tablet containing atorvastatin as fast-release and atenolol as sustained-release.

The objective of the present study was to develop bilayer tablets of atorvastatin and atenolol that are characterized by initial fast-release of atorvastatin in the stomach and comply with the release requirements of sustained-release of atenolol. An amorphous, solvent evaporation inclusion complex of atorvastatin with β -cyclodextrin, present in 1 : 3 (drug/cyclodextrin) molar ratio, was employed in the fast-release layer to enhance the dissolution of atorvastatin. Xanthan gum and guar gum were integr...

Observations of Urinary Oxycodone and Metabolite Distributions in Pain Patients.

Oxycodone is an opioid analgesic metabolized to oxymorphone and noroxycodone by cytochrome P450 (CYP) 2D6 and 3A4/5, respectively. This was a retrospective study to evaluate sex, age, urinary pH and concurrent medication use on oxycodone, oxymorphone and noroxycodone distributions. Urine specimens obtained from patients on chronic opioid therapy were analyzed by LC-MS-MS. There were 108,923 specimens from a subject's first or single visit, who were at least 18 years of age, and had documented physician-repo...

An investigation into the drug release from ibuprofen matrix tablets with ethylcellulose and some poly-acrylate polymers.

This study was performed to achieve sustained-release Ibuprofen matrix tablets with a zero-order release kinetic while most of the previous formulations have shown Higuchi release kinetic. Considering the results from previous studies, ethyl cellulose, Carbopol 934P, Carbopol 974P, and Pemulen TR-1 were used at different amounts for preparation of the tablets by direct compression. The release profiles were studied in a two-stage release test using non-linear regression analysis. Carbopols 934P and 974P cou...

Fused-filament 3D printing (3DP) for fabrication of tablets.

The use of fused-filament 3D printing (FF 3DP) to fabricate individual tablets is demonstrated. The technology permits the manufacture of tablets containing drug doses tailored to individual patients, or to fabrication of tablets with specific drug-release profiles. Commercially produced polyvinyl alcohol (PVA) filament was loaded with a model drug (fluorescein) by swelling of the polymer in ethanolic drug solution. A final drug-loading of 0.29% w/w was achieved. Tablets of PVA/fluorescein (10mm diameter) w...

Insights into the mechanisms of chitosan-anionic polymers-based matrix tablets for extended drug release.

The aim of this study was to investigate drug release mechanisms from physical mixtures of chitosan-anionic polymers-based matrix tablets and to obtain a comprehensive understanding about release characteristics. Six types of anionic polymers (i.e., Eudragit® L100, sodium alginate, carrageenan, carboxymethylcellulose sodium, carbomer and xanthan gum) and two model drugs (i.e., theophylline and metoprolol succinate) with varied solubility were chosen. Texture analyzer, differential scanning calorimetry (DSC...

Preparation and characterisation of Kolliphor(®) P 188 and P 237 solid dispersion oral tablets containing the poorly water soluble drug disulfiram.

The oral route of administration is the most common and preferred route of drug delivery due to its ease of administration, cost-effectiveness and flexibility in design. However, limited aqueous solubility of the active pharmaceutical ingredient can result in poor bioavailability, which is a major issue for the pharmaceutical industry. Increasing numbers of new drugs are falling into class II of the Biopharmaceutical Classification System (BCS), where they have a low solubility and high tissue permeability,...

The Use of Hibiscus esculentus (Okra) Gum in Sustaining the Release of Propranolol Hydrochloride in a Solid Oral Dosage Form.

The effectiveness of Okra gum in sustaining the release of propranolol hydrochloride in a tablet was studied. Okra gum was extracted from the pods of Hibiscus esculentus using acetone as a drying agent. Dried Okra gum was made into powder form and its physical and chemical characteristics such as solubility, pH, moisture content, viscosity, morphology study using SEM, infrared study using FTIR, crystallinity study using XRD, and thermal study using DSC and TGA were carried out. The powder was used in the pr...

Influence of Polymer Type on the Physical Properties and the Release Study of Papaverine Hydrochloride from Tablets.

Polymers are widely used in drug manufacturing. Researchers studied their impact on the bioavailability of active substances or on physical properties of tablets for many years.

Formulation and quality determination of indapamide matrix tablet: a thiazide type antihypertensive drug.

Purpose: The present study was explored to develop a sustained release matrix tablet of Indapamide, a low-dose thiazide-type diuretic, using hydroxylpropyl methylcellulose (Methocel K15MCR) in various proportions as release controlling factor. Methods: The tablets were formulated using direct compression method. The powers for tableting were evaluated for angle of response, loose bulk density, tapped bulk density, compressibility index, total porosity and drug content etc. The tablets were subjected to thic...

Effects of an Oxycodone Conjugate Vaccine on Oxycodone Self-Administration and Oxycodone-Induced Brain Gene Expression in Rats.

Prescription opioid abuse is an increasing public health concern in the USA. A vaccine comprising a hapten (OXY) conjugated to the carrier protein keyhole limpet hemocyanin (OXY-KLH) has been shown to attenuate the antinociceptive effects of oxycodone. Here, the vaccine's ability to prevent acquisition of intravenous (i.v.) oxycodone self-administration was studied in rats. Effects of vaccination on oxycodone-induced changes in the expression of several genes within the mesolimbic system, which are regulate...

Development and Evaluation of Ca(+ 2) Ion Cross-Linked Carboxymethyl Xanthan Gum Tablet Prepared by Wet Granulation Technique.

The objective of this work was to study the release behavior of prednisolone from calcium-cross-linked carboxymethyl xanthan gum (CMXG) tablets in dissolution medium having different pH values prevailing in the gastrointestinal lumen. Xanthan gum (XG) was derivatized to CMXG which was then cross-linked in situ with Ca(+2) ion during wet massing step of tablet preparation. Fourier transform infrared (FTIR) spectroscopy and differential scanning calorimetry studies did not show any drug-polymer interaction al...

High-amylose sodium carboxymethyl starch matrices: development and characterization of tramadol hydrochloride sustained-release tablets for oral administration.

Substituted amylose (SA) polymers were produced from high-amylose corn starch by etherification of its hydroxyl groups with chloroacetate. Amorphous high-amylose sodium carboxymethyl starch (HASCA), the resulting SA polymer, was spray-dried to obtain an excipient (SD HASCA) with optimal binding and sustained-release (SR) properties. Tablets containing different percentages of SD HASCA and tramadol hydrochloride were produced by direct compression and evaluated for dissolution. Once-daily and twice-daily SD ...


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