Fentanyl Citrate Injection in the UK: A Guide to Brand Names, Uses, and Clinical Overview
Fentanyl citrate is a potent artificial opioid analgesic, commonly recognized in scientific medicine for its quick beginning and short duration of action. Within the United Kingdom's healthcare system, fentanyl plays an important role in perioperative care, intensive care, and the management of severe, serious pain. Because of its strength-- estimated to be 50 to 100 times that of morphine-- its administration by means of injection is strictly managed and generally booked for health center settings.
For healthcare experts, students, or patients looking for to comprehend the pharmacological landscape in the UK, recognizing the offered brand names and producers of fentanyl citrate injection is necessary. This article provides a thorough overview of the brand, medical indications, and regulatory status of fentanyl citrate injections in the United Kingdom.
What is Fentanyl Citrate?
Fentanyl citrate is a phenylpiperidine derivative that functions as a powerful agonist at the μ-opioid (mu-opioid) receptors in the central worried system. When administered through intravenous (IV) or intramuscular (IM) injection, it provides fast analgesia. In the UK, it is classified as a Class A controlled 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 capability to offer intense discomfort relief while preserving hemodynamic stability, making it a preferred choice for cardiac surgeries and for clients with fragile cardiovascular systems.
Fentanyl Citrate Injection Brand Names and Manufacturers in the UK
In the UK market, many pharmaceutical products are recommended by their generic name (Fentanyl) instead of a trademark name. However, numerous manufacturers provide the NHS and private health centers with specific formulas. Historically, the most popular brand name related to fentanyl citrate was Sublimaze, initially established by Janssen Pharmaceutica. While the name Sublimaze is still utilized worldwide and colloquially in some UK theatres, most of the supply in the UK is now offered by generic production specialists.
Table 1: Common Manufacturers and Product Details in the UK
| Manufacturer | Item Description | Typical 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 original top quality item.
Clinical Indications for Injection
Fentanyl citrate injection is made use of across numerous departments, from the Emergency Department (ED) to the Operating Theatre. Its usage is usually divided into 3 classifications:
1. Anaesthesia
Fentanyl is a cornerstone of modern anaesthesia. It is utilized as an analgesic supplement throughout the induction and upkeep of general anaesthesia. It helps blunt the body's physiological "stress reaction" to intubation and surgical cut.
2. Post-operative Recovery
In the Recovery Room (PACU), fentanyl might be administered in little, titrated boluses to handle instant post-surgical pain before shifts are made to longer-acting opioids or oral medications.
3. Intensive Care (ICU)
In the Intensive Care Unit, fentanyl is frequently used as an infusion to provide constant analgesia for clients who are mechanically ventilated. Its brief half-life allows for more foreseeable "wake-up" tests compared to drugs like morphine.
Table 2: Clinical Application Summary
| Application | Role of Fentanyl |
|---|---|
| Pre-medication | To provide sedation and analgesia before transferring to theatre. |
| Induction | To cooperate with induction agents (like Propofol) for a smooth transition to unconsciousness. |
| Maintenance | To handle the surgical discomfort stimulus throughout the treatment. |
| Analgesic Supplement | Used in regional anaesthesia (like epidurals) to boost pain relief. |
Mechanism of Action and Pharmacokinetics
Fentanyl works by binding to mu-opioid receptors. This binding prevents ascending discomfort pathways, modifying the understanding of and action to pain. It also increases the discomfort limit.
- Beginning 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 through the CYP3A4 enzyme.
- Excretion: Mostly through the kidneys.
Because fentanyl is extremely lipid-soluble, it crosses the blood-brain barrier practically quickly, which explains why the analgesic effect is felt a lot faster than with morphine or oxycodone.
Security and Side Effects
Similar to all potent opioids, fentanyl citrate carries a risk of substantial negative effects, particularly associating with the breathing and cardiovascular systems.
Typical Side Effects:
- Respiratory Depression: The most serious danger; it lowers the drive to breathe.
- Bradycardia: A slow heart rate.
- Hypotension: Low high blood pressure.
- Muscle Rigidity: Specifically "wooden chest syndrome," where the chest wall ends up being too stiff to aerate easily (generally accompanies high-dose rapid IV administration).
- Nausea and Vomiting: Common in the post-operative stage.
- Pruritus: Itching, frequently around the nose or upper body.
Contraindications and Cautions:
- Known hypersensitivity to fentanyl or other opioid agonists.
- Respiratory depression in the absence of resuscitative devices.
- Concurrent usage of Monoamine Oxidase Inhibitors (MAOIs) within the last 14 days (danger of serotonin syndrome).
- Myasthenia gravis (due to muscle-relaxing interactions).
Guideline and Storage in the UK
In the United Kingdom, fentanyl citrate is strictly managed to avoid diversion and misuse.
- Storage: It needs to be kept in a locked "Controlled Drugs" (CD) cabinet that fulfills the British Standard for security.
- Record Keeping: Every dose administered must be tape-recorded in a Controlled Drugs Register, signed by 2 qualified health care professionals (generally a medical professional and a nurse, or more nurses).
- Disposal: Any squandered or unused part of an ampoule must be experienced and damaged according to regional trust policy (typically utilizing a denaturing package).
FREQUENTLY ASKED QUESTION: Fentanyl Citrate Injection in the UK
1. Is Sublimaze still offered in the UK?
While the brand name Sublimaze is the "innovator" item, most UK healthcare facilities currently utilize generic versions produced by companies like Hameln or Martindale. These are pharmacologically similar.
2. What is the standard concentration of Fentanyl injection in the UK?
The basic concentration is 50 micrograms per millilitre (50 mcg/ml). It is usually available in 2ml (100mcg) and 10ml (500mcg) ampoules.
3. Can Fentanyl injection be given at home?
No. Fentanyl citrate injection is practically specifically used in hospital settings (theatre, ICU, A&E) since of the risk of fast respiratory 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 potent than morphine. This means 100 micrograms of fentanyl is roughly comparable to 10 milligrams of morphine.
5. What is read more for a Fentanyl overdose?
Naloxone (brand name Prenoxad or generic) is the basic opioid antagonist used to reverse the results of fentanyl if breathing depression takes place.
Summary
Fentanyl citrate remains among the most vital medications in the UK's surgical and extensive care environments. While it may be described by the historic brand name Sublimaze, it is mainly used in its generic form supplied by manufacturers such as Hameln, Wockhardt, and Martindale Pharma.
Its high strength and quick start make it an unequaled tool for managing intense pain and helping with anaesthesia, however these same qualities necessitate the greatest level of medical monitoring and regulative oversight. Understanding the brands and the pharmacological profile of this drug is essential for safe practice and patient safety within the NHS and the wider UK health care sector.
Disclaimer: This short article is for informative purposes only and does not make up medical recommendations. Healthcare experts should always describe the British National Formulary (BNF) or their regional Trust standards for dosing and administration procedures.
