Fentanyl Citrate Injection in the UK: A Guide to Brand Names, Uses, and Clinical Overview
Fentanyl citrate is a powerful artificial opioid analgesic, widely acknowledged in medical medicine for its quick onset and short period of action. Within the United Kingdom's health care system, fentanyl plays a critical function in perioperative care, intensive care, and the management of severe, extreme discomfort. Due to the fact that of its strength-- approximated to be 50 to 100 times that of morphine-- its administration via injection is strictly controlled and normally scheduled for healthcare facility settings.
For healthcare specialists, trainees, or patients seeking to understand the medicinal landscape in the UK, identifying the readily available trademark name and producers of fentanyl citrate injection is essential. This article provides a detailed summary of the brand name names, scientific indications, 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 potent agonist at the μ-opioid (mu-opioid) receptors in the main nerve system. When administered through intravenous (IV) or intramuscular (IM) injection, it supplies quick 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 capability to offer intense pain relief while keeping hemodynamic stability, making it a favored choice for heart surgical treatments and for patients with delicate 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. Nevertheless, a number of producers provide the NHS and private medical facilities with particular formulas. Historically, the most famous brand name associated with fentanyl citrate was Sublimaze, initially established by Janssen Pharmaceutica. While the name Sublimaze is still used internationally and informally in some UK theatres, the bulk of the supply in the UK is now offered by generic production 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" might still appear on some procurement lists, the UK medical landscape is dominated by Hameln and Martindale generic versions, which are bioequivalent to the initial top quality item.
Scientific Indications for Injection
Fentanyl citrate injection is utilized across numerous departments, from the Emergency Department (ED) to the Operating Theatre. Its usage is normally divided into 3 categories:
1. Anaesthesia
Fentanyl is a cornerstone of contemporary anaesthesia. It is utilized as an analgesic supplement throughout the induction and upkeep of general anaesthesia. Fentanyl Analogs UK assists blunt the body's physiological "stress action" to intubation and surgical cut.
2. Post-operative Recovery
In the Recovery Room (PACU), fentanyl might be administered in little, titrated boluses to handle immediate post-surgical discomfort 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 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 relocating to theatre. |
| Induction | To comply with induction agents (like Propofol) for a smooth transition to unconsciousness. |
| Upkeep | To manage the surgical discomfort stimulus during the treatment. |
| Analgesic Supplement | Used in local anaesthesia (like epidurals) to boost pain relief. |
System of Action and Pharmacokinetics
Fentanyl works by binding to mu-opioid receptors. This binding hinders rising discomfort paths, altering the understanding of and reaction to discomfort. It likewise increases the discomfort threshold.
- Beginning of Action: 1-- 2 minutes (Intravenous).
- Peak Effect: 3-- 5 minutes.
- Duration: 30-- 60 minutes (making it extremely titratable).
- Metabolism: Primarily in the liver via the CYP3A4 enzyme.
- Excretion: Mostly by means of the kidneys.
Due to the fact that fentanyl is extremely lipid-soluble, it crosses the blood-brain barrier nearly quickly, which discusses why the analgesic result is felt so much faster than with morphine or oxycodone.
Safety and Side Effects
Similar to all powerful opioids, fentanyl citrate brings a threat of substantial adverse effects, particularly connecting to the respiratory and cardiovascular systems.
Typical Side Effects:
- Respiratory Depression: The most severe threat; it decreases the drive to breathe.
- Bradycardia: A slow heart rate.
- Hypotension: Low high blood pressure.
- Muscle Rigidity: Specifically "wood chest syndrome," where the chest wall ends up being too stiff to aerate easily (usually accompanies high-dose fast IV administration).
- Queasiness and Vomiting: Common in the post-operative stage.
- Pruritus: Itching, often around the nose or torso.
Contraindications and Cautions:
- Known hypersensitivity to fentanyl or other opioid agonists.
- Breathing 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).
Policy and Storage in the UK
In the United Kingdom, fentanyl citrate is strictly regulated to prevent diversion and misuse.
- Storage: It must be kept in a locked "Controlled Drugs" (CD) cabinet that meets the British Standard for security.
- Record Keeping: Every dose administered must be recorded in a Controlled Drugs Register, signed by 2 certified health care experts (typically a physician and a nurse, or two nurses).
- Disposal: Any squandered or unused part of an ampoule need to be experienced and destroyed according to regional trust policy (usually using a denaturing package).
FAQ: 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 presently utilize generic versions made by business like Hameln or Martindale. These are pharmacologically similar.
2. What is the standard concentration of Fentanyl injection in the UK?
The standard concentration is 50 micrograms per millilitre (50 mcg/ml). It is typically readily available in 2ml (100mcg) and 10ml (500mcg) ampoules.
3. Can Fentanyl injection be offered in your home?
No. Fentanyl citrate injection is almost solely utilized in hospital settings (theatre, ICU, A&E) since of the risk of fast respiratory anxiety, which requires instant 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. This implies 100 micrograms of fentanyl is approximately comparable to 10 milligrams of morphine.
5. What is the antidote for a Fentanyl overdose?
Naloxone (trademark name Prenoxad or generic) is the standard opioid villain used to reverse the impacts of fentanyl if respiratory anxiety occurs.
Summary
Fentanyl citrate remains one of the most crucial medications in the UK's surgical and intensive care environments. While it may be referred to by the historical brand Sublimaze, it is mainly used in its generic form supplied by makers such as Hameln, Wockhardt, and Martindale Pharma.
Its high potency and quick onset make it an unrivaled tool for handling severe discomfort and facilitating anaesthesia, however these same qualities require the highest level of medical tracking and regulatory oversight. Understanding the brand names and the medicinal profile of this drug is necessary for safe practice and client security within the NHS and the larger UK healthcare sector.
Disclaimer: This short article is for informational functions just and does not constitute medical advice. Health care experts ought to constantly refer to the British National Formulary (BNF) or their local Trust guidelines for dosing and administration protocols.
