Fentanyl Citrate Injection in the UK: A Guide to Brand Names, Uses, and Clinical Overview
Fentanyl citrate is a potent artificial opioid analgesic, extensively recognized in clinical medication for its rapid onset and brief duration of action. Within the United Kingdom's healthcare system, fentanyl plays an important function in perioperative care, intensive care, and the management of severe, extreme discomfort. Since of its strength-- approximated to be 50 to 100 times that of morphine-- its administration through injection is strictly controlled and generally reserved for medical facility settings.
For health care professionals, trainees, or patients looking for to comprehend the pharmacological landscape in the UK, identifying the offered brand and producers of fentanyl citrate injection is necessary. This post provides an extensive introduction of the brand names, clinical signs, and regulatory status of fentanyl citrate injections in the United Kingdom.
What is Fentanyl Citrate?
Fentanyl citrate is a phenylpiperidine derivative that acts as a powerful agonist at the μ-opioid (mu-opioid) receptors in the central nervous system. When administered through intravenous (IV) or intramuscular (IM) injection, it supplies fast analgesia. In the UK, it is categorized as a Class A managed drug under the Misuse of Drugs Act 1971 and falls under Schedule 2 of the Misuse of Drugs Regulations 2001.
Its main appeal in surgical settings is its ability to provide intense pain relief while preserving hemodynamic stability, making it a favored option for cardiac surgical treatments and for clients with vulnerable cardiovascular systems.
Fentanyl Citrate Injection Brand Names and Manufacturers in the UK
In the UK market, lots of pharmaceutical products are prescribed by their generic name (Fentanyl) instead of a brand. However, several manufacturers supply the NHS and personal hospitals with specific formulas. Historically, the most famous brand name connected with fentanyl citrate was Sublimaze, initially established by Janssen Pharmaceutica. While the name Sublimaze is still used internationally and informally in some UK theatres, most of the supply in the UK is now offered by generic manufacturing professionals.
Table 1: Common Manufacturers and Product Details in the UK
| Manufacturer | Product Description | Common Strengths |
|---|---|---|
| Hameln Pharma | Fentanyl Citrate Injection BP | 50 micrograms/ml (2ml, 10ml ampoules) |
| Wockhardt UK | Fentanyl Citrate Injection | 50 micrograms/ml (2ml, 10ml ampoules) |
| Martindale Pharma | Fentanyl Citrate | 50 micrograms/ml (2ml, 10ml, 20ml ampoules) |
| Janssen-Cilag | Sublimaze (Historical Brand) | 50 micrograms/ml |
| Pirimal Critical Care | Fentanyl Citrate Injection | 50 micrograms/ml |
While the brand name "Sublimaze" may still appear on some procurement lists, the UK medical landscape is controlled by Hameln and Martindale generic versions, which are bioequivalent to the initial top quality product.
Scientific Indications for Injection
Fentanyl citrate injection is used across numerous departments, from the Emergency Department (ED) to the Operating Theatre. Its use is usually divided into three classifications:
1. Anaesthesia
Fentanyl is a foundation of modern anaesthesia. It is used as an analgesic supplement during the induction and upkeep of general anaesthesia. learn more assists blunt the body's physiological "stress response" to intubation and surgical cut.
2. Post-operative Recovery
In the Recovery Room (PACU), fentanyl may be administered in small, titrated boluses to handle immediate post-surgical pain before transitions are made to longer-acting opioids or oral medications.
3. Intensive Care (ICU)
In the Intensive Care Unit, fentanyl is regularly used as an infusion to offer constant analgesia for patients who are mechanically aerated. Its brief half-life permits more foreseeable "wake-up" tests compared to drugs like morphine.
Table 2: Clinical Application Summary
| Application | Role of Fentanyl |
|---|---|
| Pre-medication | To offer sedation and analgesia before transferring to theatre. |
| Induction | To cooperate with induction representatives (like Propofol) for a smooth shift to unconsciousness. |
| Upkeep | To manage the surgical pain stimulus during the procedure. |
| Analgesic Supplement | Used in regional anaesthesia (like epidurals) to improve discomfort relief. |
Mechanism of Action and Pharmacokinetics
Fentanyl works by binding to mu-opioid receptors. This binding hinders ascending pain pathways, changing the perception of and action to discomfort. It also increases the discomfort limit.
- Start of Action: 1-- 2 minutes (Intravenous).
- Peak Effect: 3-- 5 minutes.
- Period: 30-- 60 minutes (making it highly titratable).
- Metabolic process: Primarily in the liver via the CYP3A4 enzyme.
- Excretion: Mostly by means of the kidneys.
Since fentanyl is extremely lipid-soluble, it crosses the blood-brain barrier practically quickly, which describes why the analgesic result is felt a lot faster than with morphine or oxycodone.
Safety and Side Effects
As with all powerful opioids, fentanyl citrate carries a risk of considerable negative effects, especially relating to the respiratory and cardiovascular systems.
Common Side Effects:
- Respiratory Depression: The most serious risk; it minimizes the drive to breathe.
- Bradycardia: A sluggish heart rate.
- Hypotension: Low blood pressure.
- Muscle Rigidity: Specifically "wood chest syndrome," where the chest wall becomes too stiff to aerate easily (normally accompanies high-dose quick IV administration).
- Nausea and Vomiting: Common in the post-operative phase.
- Pruritus: Itching, often around the nose or torso.
Contraindications and Cautions:
- Known hypersensitivity to fentanyl or other opioid agonists.
- Respiratory anxiety in the lack of resuscitative equipment.
- Concurrent usage of Monoamine Oxidase Inhibitors (MAOIs) within the last 14 days (risk of serotonin syndrome).
- Myasthenia gravis (due to muscle-relaxing interactions).
Guideline and Storage in the UK
In the United Kingdom, fentanyl citrate is strictly controlled to prevent diversion and misuse.
- Storage: It should be kept in a locked "Controlled Drugs" (CD) cupboard that meets the British Standard for security.
- Record Keeping: Every dosage administered need to be tape-recorded in a Controlled Drugs Register, signed by two certified health care specialists (typically a doctor and a nurse, or more nurses).
- Disposal: Any squandered or unused part of an ampoule need to be seen and damaged according to local trust policy (generally using a denaturing set).
FREQUENTLY ASKED QUESTION: Fentanyl Citrate Injection in the UK
1. Is Sublimaze still readily available in the UK?
While the brand Sublimaze is the "innovator" product, most UK hospitals presently utilize generic versions made by business like Hameln or Martindale. These are pharmacologically similar.
2. What is the basic concentration of Fentanyl injection in the UK?
The basic concentration is 50 micrograms per millilitre (50 mcg/ml). It is typically offered in 2ml (100mcg) and 10ml (500mcg) ampoules.
3. Can Fentanyl injection be provided at home?
No. Fentanyl citrate injection is practically specifically used in health center settings (theatre, ICU, A&E) because of the risk of rapid breathing anxiety, which requires immediate access to oxygen and resuscitation equipment.
4. How does Fentanyl compare to Morphine in strength?
Fentanyl is approximately 50 to 100 times more powerful than morphine. This implies 100 micrograms of fentanyl is roughly comparable to 10 milligrams of morphine.
5. What is the antidote for a Fentanyl overdose?
Naloxone (brand name Prenoxad or generic) is the basic opioid villain used to reverse the results of fentanyl if respiratory depression occurs.
Summary
Fentanyl citrate remains among the most crucial medications in the UK's surgical and intensive care environments. While it may be referred to by the historic brand name Sublimaze, it is mainly utilized in its generic form supplied by makers such as Hameln, Wockhardt, and Martindale Pharma.
Its high potency and rapid onset make it an unrivaled tool for handling severe discomfort and facilitating anaesthesia, but these same qualities demand the greatest level of clinical tracking and regulative oversight. Understanding the brand names and the pharmacological profile of this drug is essential for safe practice and client security within the NHS and the wider UK health care sector.
Disclaimer: This article is for informational functions just and does not make up medical advice. Health care professionals ought to constantly refer to the British National Formulary (BNF) or their local Trust standards for dosing and administration protocols.
