Fentanyl Citrate Injection: A Comprehensive Guide to Brands and Clinical Use in the UK
Fentanyl citrate is a powerful synthetic opioid analgesic that has remained a foundation of anesthesia and intensive care medication because its development in the 1960s. In learn more United Kingdom, it is categorized as a Class A drug under the Misuse of Drugs Act 1971 and is strictly regulated as a Schedule 2 Controlled Drug (CD). Mainly utilized for its quick onset and brief duration of action, fentanyl citrate injection is an important tool for clinicians managing sharp pain, surgical analgesia, and sedation.
This post provides an in-depth exploration of the fentanyl citrate injection brand names available in the UK, their medical indications, regulative framework, and safety profiles.
Comprehending Fentanyl Citrate
Fentanyl citrate is approximately 50 to 100 times more potent than morphine. Its high lipid solubility enables it to cross the blood-brain barrier rapidly, offering almost instant analgesic effects when administered intravenously. In the UK health care system, it is mainly utilized in hospital settings-- specifically in operating theatres, emergency situation departments, and Intensive Care Units (ICUs).
Scientific Indications
The medical applications of fentanyl citrate injection in the UK are broad but particular to controlled environments:
- Analgesic Supplement: Used during personnel treatments to provide profound analgesia.
- Induction of Anesthesia: Often utilized alongside induction representatives to blunt the cardiovascular action to intubation.
- Post-operative Pain Management: Administered in healing rooms for instant relief of severe discomfort.
- Sedation: Used in ICUs for clients needing mechanical ventilation.
Fentanyl Citrate Injection Brands in the UK
In the United Kingdom, while the initial brand developed by Janssen-Cilag was Sublimaze, the marketplace is now dominated by high-quality generic versions produced by various pharmaceutical business. These products need to be licensed by the Medicines and Healthcare items Regulatory Agency (MHRA) to ensure they satisfy rigid security and efficacy standards.
Leading Manufacturers and Suppliers
The UK supply chain for fentanyl citrate injection counts on numerous crucial players:
- Hameln Pharma: One of the most typical suppliers in NHS hospitals. They supply fentanyl in different sizes of ampoules.
- Martindale Pharma (Ethypharm): A major UK-based manufacturer concentrating on vital care and sterilized injectables.
- Mawdsleys Specialty Services: Often involved in the distribution and supply of specialized formulas.
- Wockhardt UK: Provides generic options for medical facility usage.
Summary of Available Presentations
The following table lays out the typical brands and discussions of fentanyl citrate injection presently made use of within the UK health care infrastructure.
| Brand/Manufacturer | Typical Concentration | Offered Volume (Fill Size) | Total Content |
|---|---|---|---|
| Sublimaze (Janssen) | 50 micrograms/ml | 2ml, 10ml | 100mcg, 500mcg |
| Hameln Pharma | 50 micrograms/ml | 2ml, 10ml, 20ml | 100mcg, 500mcg, 1mg |
| Martindale Pharma | 50 micrograms/ml | 2ml, 10ml | 100mcg, 500mcg |
| Ethypharm | 50 micrograms/ml | 10ml, 20ml | 500mcg, 1mg |
| Wockhardt UK | 50 micrograms/ml | 2ml, 10ml | 100mcg, 500mcg |
Pharmacology and Mechanism of Action
Fentanyl acts mostly as an agonist at the mu-opioid receptors in the central nervous system (CNS). By binding to these receptors, it hinders rising discomfort paths, modifies the understanding of and action to discomfort, and produces generalized CNS depression.
Secret Pharmacokinetic Properties:
- Onset of Action: 1-- 2 minutes (Intravenous).
- Peak Effect: 3-- 5 minutes.
- Duration: 30-- 60 minutes (much shorter than morphine due to redistribution into fat and muscle).
- Metabolic process: Hepatic by means of the CYP3A4 enzyme system.
- Excretion: Primarily kidney.
Regulatory and Safety Requirements in the UK
Because fentanyl citrate is a Schedule 2 Controlled Drug, its handling in the UK undergoes the Misuse of Drugs Regulations 2001. These policies mandate rigorous protocols to prevent diversion and ensure patient safety.
Legal Requirements for Healthcare Facilities:
- Storage: Must be stored in a locked, double-bolted cupboard (CD cabinet) that satisfies British Standards.
- Record Keeping: Every dose administered, received, or discarded must be taped in a Controlled Drugs Register (CDR).
- Recommending: All prescriptions need to fulfill specific legal requirements, including the overall amount written in both words and figures.
- Damage: Expired or infected vials need to be "rendered irretrievable" in the existence of an authorized witness.
Common Side Effects and Adverse Reactions
While extremely reliable, fentanyl citrate brings a threat of substantial side results, particularly if not titrated carefully.
Respiratory System:The most crucial side impact is respiratory depression. This is dose-dependent and can lead to apnea if the client is not kept an eye on or aerated.
Cardiovascular System:Fentanyl can cause bradycardia (sluggish heart rate) and hypotension, though it is typically thought about more cardiovascularly steady than morphine.
Musculoskeletal System:An unique negative effects of quick, high-dose fentanyl administration is "wooden chest syndrome" (skeletal muscle rigidity), which can make mechanical ventilation hard.
Other Common Side Effects:
- Nausea and vomiting.
- Dizziness or euphoria.
- Pruritus (itching).
- Biliary system convulsion.
Administration Guidelines
In the UK, fentanyl citrate injections are typically administered by anesthesiologists, specially trained nurses, or emergency situation medicine clinicians.
- Intravenous (IV) Bolus: Used for rapid discomfort relief or induction of anesthesia.
- Constant Infusion: Common in the ICU for long-lasting sedation. Concentrations are frequently standardized by regional hospital trusts (e.g., 1mg in 50ml or 2.5 mg in 50ml).
- Patient-Controlled Analgesia (PCA): Less common than morphine PCAs, however utilized for clients with morphine allergic reactions or kidney impairment.
Comparison of Fentanyl vs. Other Injectable Opioids
| Function | Fentanyl | Morphine | Remifentanil |
|---|---|---|---|
| Effectiveness (Approx) | 100x Morphine | 1x (Baseline) | 100x Morphine |
| Onset | Very Rapid (1-2 min) | Moderate (15-30 min) | Immediate (30-60 sec) |
| Duration | Brief (30-60 min) | Long (4 hours) | Ultra-short (3-10 minutes) |
| Histamine Release | Extremely Low | High | Low |
| UK Legal Status | Schedule 2 CD | Schedule 2 CD | Set up 2 CD |
Fentanyl citrate injection stays an indispensable element of the UK's medicinal toolbox for discomfort management and anesthesia. While trademark name like Sublimaze are widely known, generic versions from Hameln and Martindale offer the foundation of hospital products, ensuring affordable and reliable access to this life-saving medication. Due to its severe potency and capacity for respiratory anxiety, its use is strictly confined to clinical environments where resuscitation equipment and skilled personnel are right away readily available.
Frequently Asked Questions (FAQ)
Q: Is Fentanyl Citrate injection readily available on a standard GP prescription?A: Generally, no. While fentanyl is offered in spot (transdermal) or lozenge type for community use, the injection type is almost solely used in health center settings under professional guidance.
Q: How is a Fentanyl overdose treated in a UK medical facility?A: The primary treatment is the administration of Naloxone, an opioid villain, together with helpful measures such as oxygen treatment and mechanical ventilation.
Q: Why is fentanyl chosen over morphine in some surgical cases?A: Fentanyl is preferred when a quick beginning is needed, or if the patient is hemodynamically unsteady, as it causes less histamine release and fewer fluctuations in blood pressure compared to morphine.
Q: Can Fentanyl be utilized for children in the UK?A: Yes, it is accredited for paediatric use in the UK as an analgesic supplement in anesthesia and for sedation, with does carefully computed based upon the kid's weight and age.
Q: What happens if a dose of Fentanyl is wasted?A: In the UK, any "waste" (for example, if only half an ampoule is used) must be seen and signed for by two health care specialists in the Controlled Drugs Register to make sure the drug was ruined and not diverted.
