Fentanyl Citrate Injection in the UK: A Guide to Brand Names, Uses, and Clinical Overview
Fentanyl citrate is a potent artificial opioid analgesic, extensively acknowledged in medical medication for its fast start and brief duration of action. Within the United Kingdom's health care system, fentanyl plays a critical role in perioperative care, extensive care, and the management of intense, severe discomfort. Because of its potency-- estimated to be 50 to 100 times that of morphine-- its administration via injection is strictly managed and normally scheduled for health center settings.
For health care professionals, students, or patients looking for to comprehend the pharmacological landscape in the UK, identifying the offered brand name names and manufacturers of fentanyl citrate injection is essential. This post provides a comprehensive summary of the brand, medical indicators, and regulative status of fentanyl citrate injections in the United Kingdom.
What is Fentanyl Citrate?
Fentanyl citrate is a phenylpiperidine derivative that serves as a powerful agonist at the μ-opioid (mu-opioid) receptors in the central nerve system. When administered via intravenous (IV) or intramuscular (IM) injection, it supplies fast analgesia. In the UK, it is categorized 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 pain relief while preserving hemodynamic stability, making it a favored choice for heart 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 recommended by their generic name (Fentanyl) rather than a brand name. However, a number of makers supply the NHS and private medical facilities with specific formulations. Historically, the most well-known trademark name associated with fentanyl citrate was Sublimaze, initially developed 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 supplied 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 trademark name "Sublimaze" might still appear on some procurement lists, the UK medical landscape is dominated by Hameln and Martindale generic variations, which are bioequivalent to the initial branded product.
Clinical Indications for Injection
Fentanyl citrate injection is used throughout different departments, from the Emergency Department (ED) to the Operating Theatre. Its usage is usually divided into three categories:
1. Anaesthesia
Fentanyl is a cornerstone of modern anaesthesia. It is utilized as an analgesic supplement during the induction and maintenance of basic anaesthesia. It assists blunt the body's physiological "tension reaction" to intubation and surgical incision.
2. Post-operative Recovery
In the Recovery Room (PACU), fentanyl might be administered in little, titrated boluses to manage 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 often utilized as an infusion to provide constant analgesia for patients who are mechanically aerated. Its short 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 provide sedation and analgesia before transferring to theatre. |
| Induction | To comply with induction agents (like Propofol) for a smooth transition to unconsciousness. |
| Upkeep | To handle the surgical discomfort stimulus during the procedure. |
| Analgesic Supplement | Used in regional anaesthesia (like epidurals) to enhance pain relief. |
Mechanism of Action and Pharmacokinetics
Fentanyl works by binding to mu-opioid receptors. This binding prevents ascending pain paths, modifying the understanding of and reaction to pain. It also increases the discomfort threshold.
- Beginning of Action: 1-- 2 minutes (Intravenous).
- Peak Effect: 3-- 5 minutes.
- Period: 30-- 60 minutes (making it highly titratable).
- Metabolism: Primarily in the liver via the CYP3A4 enzyme.
- Excretion: Mostly by means of the kidneys.
Because fentanyl is highly lipid-soluble, it crosses the blood-brain barrier practically immediately, which discusses why the analgesic result is felt a lot faster than with morphine or oxycodone.
Security and Side Effects
Just like all powerful opioids, fentanyl citrate carries a danger of significant negative effects, especially connecting 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 high blood pressure.
- Muscle Rigidity: Specifically "wooden chest syndrome," where the chest wall ends up being too stiff to ventilate quickly (generally accompanies high-dose quick IV administration).
- Nausea and Vomiting: Common in the post-operative phase.
- Pruritus: Itching, often around the nose or upper body.
Contraindications and Cautions:
- Known hypersensitivity to fentanyl or other opioid agonists.
- Respiratory depression in the lack of resuscitative devices.
- Concurrent use of Monoamine Oxidase Inhibitors (MAOIs) within the last 14 days (threat of serotonin syndrome).
- Myasthenia gravis (due to muscle-relaxing interactions).
Guideline and Storage in the UK
In the United Kingdom, fentanyl citrate is strictly regulated to prevent diversion and abuse.
- Storage: It must be kept in a locked "Controlled Drugs" (CD) cupboard that satisfies the British Standard for security.
- Record Keeping: Every dose administered need to be taped in a Controlled Drugs Register, signed by 2 certified healthcare specialists (generally a physician and a nurse, or more nurses).
- Disposal: Any wasted or unused part of an ampoule must be witnessed and destroyed according to local trust policy (normally utilizing a denaturing kit).
FREQUENTLY ASKED QUESTION: Fentanyl Citrate Injection in the UK
1. Is Sublimaze still available in the UK?
While the trademark name Sublimaze is the "innovator" product, a lot of UK medical facilities currently utilize generic variations manufactured by companies like Hameln or Martindale. These are pharmacologically similar.
2. What is the basic concentration of Fentanyl injection in the UK?
The standard 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 given at home?
No. Fentanyl citrate injection is nearly solely used in health center settings (theatre, ICU, A&E) due to the fact that of the risk of rapid respiratory anxiety, which requires immediate access to oxygen and resuscitation equipment.
4. How does Fentanyl compare to Morphine in strength?
Fentanyl is around 50 to 100 times more potent than morphine. Fentanyl Citrate Injection Side Effects UK suggests 100 micrograms of fentanyl is approximately equivalent to 10 milligrams of morphine.
5. What is the remedy for a Fentanyl overdose?
Naloxone (brand name Prenoxad or generic) is the basic opioid villain utilized to reverse the impacts of fentanyl if respiratory depression occurs.
Summary
Fentanyl citrate stays among the most vital medications in the UK's surgical and extensive care environments. While it might be described by the historic brand Sublimaze, it is mostly utilized in its generic kind provided by manufacturers such as Hameln, Wockhardt, and Martindale Pharma.
Its high strength and quick beginning make it an unparalleled tool for managing intense pain and helping with anaesthesia, but these same qualities demand the highest level of clinical monitoring and regulatory oversight. Comprehending the brands and the medicinal profile of this drug is essential for safe practice and patient security within the NHS and the larger UK health care sector.
Disclaimer: This article is for informational purposes just and does not constitute medical suggestions. Healthcare professionals should always describe the British National Formulary (BNF) or their regional Trust standards for dosing and administration protocols.
