Fentanyl Citrate Injection in the UK: A Guide to Brand Names, Uses, and Clinical Overview
Fentanyl citrate is a powerful artificial opioid analgesic, widely recognized in medical medicine for its fast start and short duration of action. Within the United Kingdom's healthcare system, fentanyl plays a critical function in perioperative care, extensive care, and the management of intense, serious discomfort. Due to the fact that of its effectiveness-- approximated to be 50 to 100 times that of morphine-- its administration by means of injection is strictly controlled and typically scheduled for healthcare facility settings.
For health care experts, trainees, or clients looking for to comprehend the pharmacological landscape in the UK, recognizing the available trademark name and makers of fentanyl citrate injection is important. This blog post offers a detailed overview of the brand, scientific indicators, and regulative 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 main worried system. When administered through intravenous (IV) or intramuscular (IM) injection, it provides quick 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 primary appeal in surgical settings is its ability to provide intense discomfort relief while maintaining 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, numerous pharmaceutical items are recommended by their generic name (Fentanyl) rather than a brand. Nevertheless, several producers provide the NHS and private medical facilities with specific solutions. Historically, the most well-known brand related to fentanyl citrate was Sublimaze, originally developed 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 provided by generic production experts.
Table 1: Common Manufacturers and Product Details in the UK
| Maker | 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" might still appear on some procurement lists, the UK medical landscape is controlled by Hameln and Martindale generic versions, which are bioequivalent to the original branded product.
Scientific Indications for Injection
Fentanyl citrate injection is utilized across different departments, from the Emergency Department (ED) to the Operating Theatre. Its usage is generally divided into 3 categories:
1. Anaesthesia
Fentanyl is a foundation of modern anaesthesia. It is utilized as an analgesic supplement during the induction and maintenance of basic anaesthesia. visit website assists blunt the body's physiological "stress response" 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 transitions 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 supply constant analgesia for patients who are mechanically aerated. Its short half-life permits more predictable "wake-up" tests compared to drugs like morphine.
Table 2: Clinical Application Summary
| Application | Function of Fentanyl |
|---|---|
| Pre-medication | To supply sedation and analgesia before relocating to theatre. |
| Induction | To cooperate with induction agents (like Propofol) for a smooth shift to unconsciousness. |
| Maintenance | To handle the surgical discomfort stimulus during the treatment. |
| 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 prevents ascending discomfort paths, modifying the understanding of and response to discomfort. It likewise increases the pain threshold.
- Onset of Action: 1-- 2 minutes (Intravenous).
- Peak Effect: 3-- 5 minutes.
- Duration: 30-- 60 minutes (making it highly titratable).
- Metabolism: Primarily in the liver through the CYP3A4 enzyme.
- Excretion: Mostly by means of the kidneys.
Because fentanyl is extremely lipid-soluble, it crosses the blood-brain barrier nearly immediately, which explains why the analgesic result is felt a lot faster than with morphine or oxycodone.
Safety and Side Effects
Similar to all potent opioids, fentanyl citrate carries a risk of substantial negative effects, particularly relating to the breathing and cardiovascular systems.
Typical Side Effects:
- Respiratory Depression: The most severe threat; it reduces the drive to breathe.
- Bradycardia: A sluggish heart rate.
- Hypotension: Low high blood pressure.
- Muscle Rigidity: Specifically "wood chest syndrome," where the chest wall ends up being too stiff to aerate quickly (generally occurs with high-dose rapid IV administration).
- Queasiness 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 absence of resuscitative devices.
- 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 avoid diversion and misuse.
- Storage: It should be kept in a locked "Controlled Drugs" (CD) cabinet that satisfies the British Standard for security.
- Record Keeping: Every dose administered should be tape-recorded in a Controlled Drugs Register, signed by 2 competent healthcare experts (typically a doctor and a nurse, or two nurses).
- Disposal: Any lost or unused part of an ampoule must be witnessed and destroyed according to regional trust policy (normally using a denaturing set).
FAQ: Fentanyl Citrate Injection in the UK
1. Is Sublimaze still offered in the UK?
While the trademark name Sublimaze is the "innovator" product, a lot of UK healthcare facilities presently utilize generic versions produced 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 provided at home?
No. Fentanyl citrate injection is almost specifically used in medical facility settings (theatre, ICU, A&E) due to the fact that of the threat of rapid respiratory anxiety, which needs instant access to oxygen and resuscitation devices.
4. How does Fentanyl compare to Morphine in strength?
Fentanyl is around 50 to 100 times more powerful than morphine. This means 100 micrograms of fentanyl is roughly comparable to 10 milligrams of morphine.
5. What is the antidote for a Fentanyl overdose?
Naloxone (trademark name Prenoxad or generic) is the basic opioid antagonist used to reverse the impacts of fentanyl if breathing anxiety occurs.
Summary
Fentanyl citrate remains among the most important medications in the UK's surgical and extensive care environments. While it may be described by the historical brand name Sublimaze, it is mainly used in its generic type supplied by manufacturers such as Hameln, Wockhardt, and Martindale Pharma.
Its high strength and rapid start make it an unrivaled tool for managing sharp pain and facilitating anaesthesia, however these same qualities require the greatest level of medical monitoring and regulative oversight. Comprehending the brands and the medicinal profile of this drug is vital for safe practice and client safety within the NHS and the larger UK healthcare sector.
Disclaimer: This short article is for educational purposes just and does not make up medical advice. Health care professionals should always describe the British National Formulary (BNF) or their regional Trust guidelines for dosing and administration procedures.
