Fentanyl Citrate Injection in the UK: A Guide to Brand Names, Uses, and Clinical Overview
Fentanyl citrate is a powerful synthetic opioid analgesic, widely recognized in clinical medicine for its fast onset and short duration of action. Within the United Kingdom's healthcare system, fentanyl plays a critical function in perioperative care, intensive care, and the management of intense, serious discomfort. Due to the fact that of its potency-- estimated to be 50 to 100 times that of morphine-- its administration through injection is strictly managed and generally booked for medical facility settings.
For health care professionals, students, or patients seeking to comprehend the pharmacological landscape in the UK, identifying the readily available brand and producers of fentanyl citrate injection is important. Fentanyl Transdermal System UK offers a detailed introduction of the brand names, medical signs, 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 main worried system. When administered through intravenous (IV) or intramuscular (IM) injection, it supplies fast analgesia. In the UK, it is classified 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 capability to provide intense pain relief while preserving hemodynamic stability, making it a favored 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 items are prescribed by their generic name (Fentanyl) rather than a brand name. Nevertheless, numerous manufacturers supply the NHS and personal healthcare facilities with particular solutions. Historically, the most popular trademark name related to fentanyl citrate was Sublimaze, originally established by Janssen Pharmaceutica. While the name Sublimaze is still used internationally and colloquially in some UK theatres, most of the supply in the UK is now supplied by generic production professionals.
Table 1: Common Manufacturers and Product Details in the UK
| Producer | 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" might 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 item.
Clinical Indications for Injection
Fentanyl citrate injection is made use of throughout numerous departments, from the Emergency Department (ED) to the Operating Theatre. Its usage is typically divided into 3 classifications:
1. Anaesthesia
Fentanyl is a cornerstone of modern-day anaesthesia. It is utilized as an analgesic supplement during the induction and upkeep of general anaesthesia. It assists blunt the body's physiological "stress action" to intubation and surgical cut.
2. Post-operative Recovery
In the Recovery Room (PACU), fentanyl may be administered in small, 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 continuous analgesia for patients who are mechanically aerated. Its brief half-life allows for more predictable "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 relocating to theatre. |
| Induction | To cooperate with induction representatives (like Propofol) for a smooth transition to unconsciousness. |
| Maintenance | To handle the surgical discomfort stimulus during the procedure. |
| Analgesic Supplement | Used in regional anaesthesia (like epidurals) to boost discomfort relief. |
Mechanism of Action and Pharmacokinetics
Fentanyl works by binding to mu-opioid receptors. This binding inhibits rising discomfort pathways, altering the perception of and reaction to discomfort. It also increases the pain limit.
- Onset of Action: 1-- 2 minutes (Intravenous).
- Peak Effect: 3-- 5 minutes.
- Period: 30-- 60 minutes (making it extremely titratable).
- Metabolic process: Primarily in the liver by means of the CYP3A4 enzyme.
- Excretion: Mostly via the kidneys.
Since fentanyl is highly lipid-soluble, it crosses the blood-brain barrier almost quickly, which discusses why the analgesic result is felt a lot faster than with morphine or oxycodone.
Security and Side Effects
As with all powerful opioids, fentanyl citrate carries a danger of considerable adverse effects, particularly connecting to the breathing and cardiovascular systems.
Typical Side Effects:
- Respiratory Depression: The most serious threat; it minimizes the drive to breathe.
- Bradycardia: A slow heart rate.
- Hypotension: Low blood pressure.
- Muscle Rigidity: Specifically "wooden chest syndrome," where the chest wall ends up being too stiff to aerate easily (generally occurs with high-dose rapid 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 depression in the absence of resuscitative equipment.
- Concurrent use 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 abuse.
- Storage: It must be kept in a locked "Controlled Drugs" (CD) cabinet that meets the British Standard for security.
- Record Keeping: Every dose administered should be recorded in a Controlled Drugs Register, signed by two qualified health care specialists (usually a physician and a nurse, or more nurses).
- Disposal: Any wasted or unused portion of an ampoule should be seen and destroyed according to regional trust policy (typically using a denaturing package).
FREQUENTLY ASKED QUESTION: Fentanyl Citrate Injection in the UK
1. Is Sublimaze still offered in the UK?
While the brand Sublimaze is the "innovator" item, most UK hospitals presently use generic variations 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 generally offered in 2ml (100mcg) and 10ml (500mcg) ampoules.
3. Can Fentanyl injection be offered in your home?
No. Fentanyl citrate injection is almost specifically used in hospital settings (theatre, ICU, A&E) due to the fact that of the danger of fast respiratory depression, which needs immediate access to oxygen and resuscitation equipment.
4. How does Fentanyl compare to Morphine in strength?
Fentanyl is roughly 50 to 100 times more powerful than morphine. This implies 100 micrograms of fentanyl is approximately equivalent to 10 milligrams of morphine.
5. What is the remedy for a Fentanyl overdose?
Naloxone (brand Prenoxad or generic) is the standard opioid antagonist used to reverse the results of fentanyl if respiratory depression happens.
Summary
Fentanyl citrate stays among the most important medications in the UK's surgical and intensive care environments. While it might be described by the historical trademark name Sublimaze, it is primarily utilized in its generic form provided by makers such as Hameln, Wockhardt, and Martindale Pharma.
Its high strength and rapid onset make it an unequaled tool for handling severe discomfort and facilitating anaesthesia, but these exact same qualities necessitate the greatest level of scientific monitoring and regulative oversight. Comprehending the brand names and the medicinal profile of this drug is necessary for safe practice and patient safety within the NHS and the larger UK health care sector.
Disclaimer: This post is for educational purposes just and does not constitute medical advice. Health care professionals must always refer to the British National Formulary (BNF) or their local Trust guidelines for dosing and administration protocols.
