Fentanil

The term 'opioids' refers to both the natural compounds ('opiates') which are extracted from the opium poppy plant ( Papaver somniferum ) and their semi-synthetic and synthetic derivatives. They all possess relatively similar biochemical profiles and interact with the opioid receptors within the human body to produce a wide range of physiological effects. They have historically been used for medicinal purposes, their analgesic and sedative effects, and in the management of chronic and severe pain. They have also been used for non-medicinal and recreational purposes to produce feelings of relaxation, euphoria and well-being...

OBJECTIVE: The purpose of our study was to compare the recovery characteristics and side effects of sugammadex (SM) and neostigmine (NT) in morbidly obese patients undergoing bariatric surgery. Residual neuromuscular block is a serious condition that increases pulmonary complications after anesthesia. Although acetylcholinesterase inhibitors help reverse this block, they may be insufficient, especially when administered with inhalational anesthetics. SM, a selective antagonist, may be more effective in reversing the block...

AIM: The growing demand for analgesia, coupled with an increasing need to treat opioid dependence and overdose, has escalated the development of novel opioids. We aimed to quantify the number of opioid drugs developed and to catalogue them based on their pharmacology. METHODS: We conducted a systematic search of seven sources in November 2020, including the WHO's Anatomical Therapeutic Classification index, the British National Formulary, the IUPHAR/BPS Guide to Pharmacology, the International Narcotics Control Board Index of Names of Narcotic Drugs, the WHO's International Nonproprietary Names MedNet service, Martindale's Extra Pharmacopoeia and the Merck Index, to include opioid drugs that targeted or had an effect or coeffect at one or more opioid receptors...

The extended occurrence of fentanils abuse associated with the dramatic increase in opioid fatal overdoses and dependence strongly emphasizes insufficiencies in opioid addiction treatment. Recently, the growth hormone secretagogue receptor (GHS-R1A) antagonism was proposed as a promising mechanism for drug addiction therapy. However, the role of GHS-R1A and its endogenous ligand ghrelin in opioid abuse is still unclear. Therefore, the aim of our study was to clarify whether the GHS-R1A antagonist JMV2959 could reduce the fentanyl-induced conditioned place preference (CPP), the fentanyl intravenous self-administration (IVSA), and the tendency to relapse, but also whether JMV2959 could significantly influence the fentanyl-induced dopamine efflux in the nucleus accumbens (NAC) in rats, that importantly participates in opioids' reinforcing effects...

No abstract text is available yet for this article.

Purpose: A detailed review on the chemistry and pharmacology of non-fentanil novel synthetic opioid receptor agonists, particularly N -substituted benzamides and acetamides (known colloquially as U-drugs) and 4-aminocyclohexanols, developed at the Upjohn Company in the 1970s and 1980s is presented. Method: Peer-reviewed literature, patents, professional literature, data from international early warning systems and drug user fora discussion threads have been used to track their emergence as substances of abuse...

INTRODUCTION: The actual high hospitalization costs have encouraged a growing attention towards reducing hospital stay. Nowadays, many simple surgical procedures are carried out in a one-day surgery regimen . A shorter hospital stay brings many advantages for the patients: lesser inconvenience, a lower risk of hospital infection and an earlier return to work. In proctology, day surgery polices are still uncommon because surgeons fear possible complications. In this paper we sum up our 15 years experience, stressing the possibility to perform even complex procedures in local-regional anesthesia and in a day-surgery context...

Described herein is the development of a 3D-printed drift-tube ion mobility spectrometer (IMS) which operates in the open air and is capable of being coupled to any mass spectrometer. The IMS possesses one electrospray focusing electrode, 31 drift electrodes with 7 mm inner diameters, and 2 ion gates at opposite ends of the IMS, totaling 109 mm in length. The second ion gate was timed with respect to the first ion gate to transmit portions of the separating ion packets to the MS at specified time intervals...

New psychoactive substances (NPS) are drugs that are not controlled by the United Nations international drug control conventions of 1961 and 1971 but that may pose similar threats to public health. Many of them are traded as "legal" replacements to controlled drugs such as cannabis, heroin, benzodiazepines, cocaine, amphetamines, and 3,4-methylenedioxymethamphetamine (MDMA). Driven by globalization, there has been a large increase in the availability and, subsequently, harms caused by these substances over the last decade in Europe...

Background: Long-term anesthesia applied in some operations, especially in neurosurgical operations leads to unwanted complications. This study aimed to compare the effect of intraoperative labetalol and lidocaine injection on the rate of changes in postoperative blood pressure and heart beat in patients undergoing brain operation. Materials and Methods: This is a simple double-blind randomized clinical trial study conducted in Al-Zahra and Kashani Hospitals on 90 patients' candidate for craniotomy operation with the age range of 18-65 years, Glasgow Coma Scale (GCS) ≥13 before anesthesia, physical class of American Society of Anesthesiologists I, II, insensitivity to labetalol who were divided into two groups of 45 individuals in the random allocation method...

INTRODUCTION: This research was to follow characteristics of breakthrough pain caused by cancer (BTcP) and other most common sympthoms (ESAS) at patients in advanced stage of cancer disease in palliative care. PATIENTS AND METHODS: Prospective study included 433 patients which were treated in Palliative Care Centre in UKC Tuzla, Bosnia and Herzegovina. Group 1 was consisted of 353 patients whose basal cancer pain of intensity 4-7 NRS was treated weak opiates (basal analgetic- fixed combination of tramadol/paracetamol (37...

OBJECTIVE: To analyze potential intravenous drug interactions, and their level of severity associated with the administration of these drugs based on the prescriptions of an intensive care unit. METHOD: Quantitative study, with aretrospective exploratory design, and descriptive statistical analysis of the ICU prescriptions of a teaching hospital from March to June 2014. RESULTS: The sample consisted of 319 prescriptions and subsamples of 50 prescriptions...

BACKGROUND: Magnesium sulfate displays numerous characteristics that make it a useful drug in anesthesiology (N-methyl-d-aspartate receptor antagonist, vasodilator, antiarrhythmic, inhibitor of catecholamine release and of acetylcholine in the terminal motor plate). The perioperative use of this drug as an adjuvant capable of decreasing the required dose of anesthetics, has been proposed. OBJECTIVES: To assess the influence of intravenous magnesium sulfate administration during general anesthesia on the overall dose of required anesthetics...

OBJECTIVE: To analyze nurses' knowledge and practices regarding pain management of newborns admitted to Neonatal Intensive Care Units. METHOD: A descriptive and cross-sectional study. Data were collected from 51 nurses based on an adapted questionnaire aimed at evaluating knowledge and practices regarding the management of neonatal pain in six hospitals in Curitiba and its Metropolitan Region. RESULTS: For most nurses (86.0%), neonates feel pain...

OBJECTIVE: To compare the anesthetic techniques using propofol and fentanyl versus midazolam and remifentanil associated with a paracervical block with lidocaine in performing ultrasound-guided transvaginal oocyte aspiration. METHODS: A randomized double-blind clinical trial (#RBR-8kqqxh) performed in 61 women submitted to assisted reproductive treatment. The patients were divided into two groups: anesthetic induction with 1mcg/kg of fentanyl associated with 1.5mg/kg of propofol (FP Group, n=32), in comparison with anesthetic induction using 0...

No abstract text is available yet for this article.

STUDY DESIGN: A prospective, randomized study wias performed to compare two anesthetic methods. OBJECTIVE: To evaluate the effect of epidural analgesia on postoperative pain, endocrine- metabolic and inflammatory stress response and cellular inmmune responses during major corrective spine surgetry. METHODS: The study included 350 patients aged 15 to 65 who were randomly allocated to two equal groups. Group I (n=205) had continuous epidural analgesia (E4) and sevoflurane anesthesia during surgety and continuous epidural analgesia with ropivacaine and fentanil after surgery; Group 2 (n= 145) had general anesthesia with sevoflurane and fentanil and systemic administration of opioids after surgery...

A 42-year-old woman been suffering from multiple sclerosis for 2 years received an emergency laparotomy because of acute pancreatitis. Anesthesia was induced with propofol and fentanil and maintained with nitrous oxide and sevoflurane. Rocuronium was used for tracheal intubation and muscle relaxation. Train of four ratio was monitored for tracing muscle relaxation. Three days later the patient was operated again due to abdominal cavity infection and followed up with "open abdomen strategy" receiving general anesthesia with 3 days intervals...

UNLABELLED: The study is designed to evaluate the influence of remifentanil/propofol anesthesia on ventilator-associated pneumonia (VAP) occurrence and respiratory support (RS) time after major cardiac surgery. MATERIAL AND METHODS: In retrospective-prospective study we investigated the respiratory support time and VAP occurrence in group of 47 patients with remifentanil/propofol and 35 patients with fentanil/midazolam anesthesia after major cardiac surgery in period June 2009-December 2011...

PURPOSE: To evaluate the pain on injection of propofol via different combinations of fentanyl, sufentanil or remifentanil in gastrointestinal endoscopy. METHODS: Total 439 patients were randomly allocated into 6 groups. Propofol & fentanil (PF) group received 1 μg/kg fentanyl, propofol & sufentanil (PS) group received 0.1 μg/kg sufentanil and propofol & remifentanyl (PR) group received 1 μg/kg remifentanyl prior to administration of 1-2 mg/kg of propofol...