Fentanyl Citrate Injection: A Comprehensive Guide to Brands and Clinical Use in the UK
Fentanyl citrate is a potent synthetic opioid analgesic that has stayed a foundation of anesthesia and extensive care medicine given that its development in the 1960s. In the 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). Primarily used for read more and brief duration of action, fentanyl citrate injection is an essential tool for clinicians handling sharp pain, surgical analgesia, and sedation.
This article supplies a thorough expedition of the fentanyl citrate injection brand names readily available in the UK, their clinical indications, regulatory framework, and safety profiles.
Understanding Fentanyl Citrate
Fentanyl citrate is roughly 50 to 100 times more potent than morphine. Its high lipid solubility allows it to cross the blood-brain barrier rapidly, offering practically immediate analgesic effects when administered intravenously. In the UK health care system, it is mostly utilized in healthcare facility settings-- particularly in running theatres, emergency departments, and Intensive Care Units (ICUs).
Clinical Indications
The scientific applications of fentanyl citrate injection in the UK are broad however particular to controlled environments:
- Analgesic Supplement: Used throughout operative treatments to offer profound analgesia.
- Induction of Anesthesia: Often utilized alongside induction agents to blunt the cardiovascular reaction to intubation.
- Post-operative Pain Management: Administered in healing spaces for instant relief of extreme pain.
- Sedation: Used in ICUs for clients requiring mechanical ventilation.
Fentanyl Citrate Injection Brands in the UK
In the United Kingdom, while the original trademark name established by Janssen-Cilag was Sublimaze, the market is now dominated by top quality generic versions produced by different pharmaceutical business. These products must be authorized by the Medicines and Healthcare products Regulatory Agency (MHRA) to ensure they satisfy strict security and efficacy requirements.
Leading Manufacturers and Suppliers
The UK supply chain for fentanyl citrate injection relies on several key players:
- Hameln Pharma: One of the most common suppliers in NHS medical facilities. They supply fentanyl in numerous sizes of ampoules.
- Martindale Pharma (Ethypharm): A significant UK-based maker concentrating on crucial care and sterile injectables.
- Mawdsleys Specialty Services: Often included in the distribution and supply of specialized formulations.
- Wockhardt UK: Provides generic options for hospital usage.
Summary of Available Presentations
The following table outlines the common brand names and presentations of fentanyl citrate injection currently used within the UK health care facilities.
| Brand/Manufacturer | Typical Concentration | Readily Available 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 mainly as an agonist at the mu-opioid receptors in the central nervous system (CNS). By binding to these receptors, it inhibits rising pain pathways, changes the perception of and action to pain, and produces generalized CNS anxiety.
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).
- Metabolism: Hepatic through the CYP3A4 enzyme system.
- Excretion: Primarily kidney.
Regulatory and Safety Requirements in the UK
Due to the fact that fentanyl citrate is a Schedule 2 Controlled Drug, its handling in the UK is subject to the Misuse of Drugs Regulations 2001. These guidelines mandate stringent protocols to prevent diversion and make sure client security.
Legal Requirements for Healthcare Facilities:
- Storage: Must be kept in a locked, double-bolted cabinet (CD cupboard) that fulfills British Standards.
- Record Keeping: Every dose administered, gotten, or discarded need to be tape-recorded in a Controlled Drugs Register (CDR).
- Recommending: All prescriptions must satisfy specific legal requirements, consisting of the overall amount written in both words and figures.
- Destruction: Expired or polluted vials should be "rendered irretrievable" in the presence of an authorized witness.
Common Side Effects and Adverse Reactions
While extremely effective, fentanyl citrate carries a threat of significant negative effects, particularly if not titrated thoroughly.
Breathing System:The most crucial negative effects is respiratory anxiety. This is dose-dependent and can result in apnea if the patient is not kept track of or ventilated.
Cardiovascular System:Fentanyl can cause bradycardia (slow heart rate) and hypotension, though it is generally thought about more cardiovascularly stable than morphine.
Musculoskeletal System:A distinct side effect of quick, high-dose fentanyl administration is "wooden chest syndrome" (skeletal muscle rigidness), which can make mechanical ventilation tough.
Other Common Side Effects:
- Nausea and vomiting.
- Dizziness or euphoria.
- Pruritus (itching).
- Biliary system spasm.
Administration Guidelines
In the UK, fentanyl citrate injections are generally administered by anesthesiologists, specially trained nurses, or emergency medicine clinicians.
- Intravenous (IV) Bolus: Used for rapid discomfort relief or induction of anesthesia.
- Continuous Infusion: Common in the ICU for long-term sedation. Fentanyl Citrate With Morphine UK are frequently standardized by local healthcare facility trusts (e.g., 1mg in 50ml or 2.5 mg in 50ml).
- Patient-Controlled Analgesia (PCA): Less common than morphine PCAs, however made use of for clients with morphine allergies or kidney impairment.
Comparison of Fentanyl vs. Other Injectable Opioids
| Feature | Fentanyl | Morphine | Remifentanil |
|---|---|---|---|
| Effectiveness (Approx) | 100x Morphine | 1x (Baseline) | 100x Morphine |
| Start | 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 | Arrange 2 CD | Set up 2 CD | Set up 2 CD |
Fentanyl citrate injection remains an indispensable part of the UK's pharmacological toolbox for pain management and anesthesia. While trademark name like Sublimaze are well-known, generic versions from Hameln and Martindale provide the foundation of medical facility products, ensuring cost-efficient and reputable access to this life-saving medication. Due to its extreme strength and capacity for breathing anxiety, its usage is strictly restricted to medical environments where resuscitation devices and skilled workers are right away readily available.
Often Asked Questions (FAQ)
Q: Is Fentanyl Citrate injection readily available on a standard GP prescription?A: Generally, no. While fentanyl is readily available in spot (transdermal) or lozenge type for community usage, the injection type is almost exclusively used in hospital settings under expert supervision.
Q: How is a Fentanyl overdose treated in a UK medical facility?A: The primary treatment is the administration of Naloxone, an opioid villain, along with encouraging steps such as oxygen treatment and mechanical ventilation.
Q: Why is fentanyl chosen over morphine in some surgical cases?A: Fentanyl is chosen when a fast start is required, or if the client is hemodynamically unstable, as it triggers less histamine release and less changes in blood pressure compared to morphine.
Q: Can Fentanyl be utilized for kids in the UK?A: Yes, it is accredited for paediatric use in the UK as an analgesic supplement in anesthesia and for sedation, with dosages thoroughly computed based upon the child's weight and age.
Q: What occurs if a dose of Fentanyl is wasted?A: In the UK, any "waste" (for example, if just half an ampoule is utilized) should be seen and signed for by two healthcare specialists in the Controlled Drugs Register to guarantee the drug was destroyed and not diverted.
