Fentanyl Citrate Injection in the UK: A Guide to Brand Names, Uses, and Clinical Overview
Fentanyl citrate is a powerful synthetic opioid analgesic, extensively recognized in scientific medicine for its quick onset and short duration of action. Within the United Kingdom's health care system, fentanyl plays an important function in perioperative care, extensive care, and the management of acute, serious discomfort. Due to the fact that of its strength-- estimated to be 50 to 100 times that of morphine-- its administration by means of injection is strictly managed and typically booked for medical facility settings.
For health care experts, students, or clients seeking to understand the pharmacological landscape in the UK, identifying the readily available brand names and producers of fentanyl citrate injection is essential. This article provides a thorough introduction of the brand, medical indicators, 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 potent agonist at the μ-opioid (mu-opioid) receptors in the main nervous system. When administered by means of intravenous (IV) or intramuscular (IM) injection, it supplies 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 primary appeal in surgical settings is its capability to provide extreme discomfort relief while preserving hemodynamic stability, making it a preferred choice for cardiac surgical treatments and for patients with fragile cardiovascular systems.
Fentanyl Citrate Injection Brand Names and Manufacturers in the UK
In the UK market, lots of pharmaceutical items are prescribed by their generic name (Fentanyl) rather than a brand name. Nevertheless, several makers provide the NHS and personal hospitals with particular formulas. Historically, the most popular brand name associated with fentanyl citrate was Sublimaze, initially established by Janssen Pharmaceutica. While the name Sublimaze is still utilized globally and informally in some UK theatres, the bulk of the supply in the UK is now offered by generic manufacturing specialists.
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 original top quality item.
Medical Indications for Injection
Fentanyl citrate injection is used throughout different departments, from the Emergency Department (ED) to the Operating Theatre. Its use is typically divided into 3 categories:
1. Anaesthesia
Fentanyl is a cornerstone of modern anaesthesia. It is used as an analgesic supplement throughout the induction and upkeep of basic anaesthesia. It assists blunt the body's physiological "tension action" to intubation and surgical cut.
2. Post-operative Recovery
In the Recovery Room (PACU), fentanyl might be administered in small, titrated boluses to handle instant post-surgical discomfort before shifts are made to longer-acting opioids or oral medications.
3. Intensive Care (ICU)
In the Intensive Care Unit, fentanyl is often used as an infusion to supply continuous analgesia for patients who are mechanically aerated. Its short half-life permits for more foreseeable "wake-up" tests compared to drugs like morphine.
Table 2: Clinical Application Summary
| Application | Function of Fentanyl |
|---|---|
| Pre-medication | To provide sedation and analgesia before moving to theatre. |
| Induction | To work together with induction agents (like Propofol) for a smooth transition to unconsciousness. |
| Maintenance | To handle the surgical pain stimulus during the procedure. |
| Analgesic Supplement | Utilized in regional anaesthesia (like epidurals) to improve discomfort relief. |
System of Action and Pharmacokinetics
Fentanyl works by binding to mu-opioid receptors. This binding prevents ascending discomfort paths, altering the understanding of and response to discomfort. It also increases the pain threshold.
- Onset of Action: 1-- 2 minutes (Intravenous).
- Peak Effect: 3-- 5 minutes.
- Period: 30-- 60 minutes (making it extremely titratable).
- Metabolism: Primarily in the liver by means of the CYP3A4 enzyme.
- Excretion: Mostly through the kidneys.
Since fentanyl is extremely lipid-soluble, it crosses the blood-brain barrier practically instantly, which describes why the analgesic effect is felt so much faster than with morphine or oxycodone.
Safety and Side Effects
Just like all potent opioids, fentanyl citrate brings a threat of considerable negative effects, particularly connecting to the respiratory 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 blood pressure.
- Muscle Rigidity: Specifically "wood chest syndrome," where the chest wall ends up being too stiff to ventilate quickly (normally accompanies high-dose quick IV administration).
- Queasiness and Vomiting: Common in the post-operative phase.
- Pruritus: Itching, typically 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 regulated to avoid diversion and abuse.
- Storage: It needs to be kept in a locked "Controlled Drugs" (CD) cupboard that fulfills the British Standard for security.
- Record Keeping: Every dose administered should be tape-recorded in a Controlled Drugs Register, signed by two competent health care professionals (typically a physician and a nurse, or 2 nurses).
- Disposal: Any lost or unused portion of an ampoule must be witnessed and destroyed according to local trust policy (generally utilizing a denaturing kit).
FREQUENTLY ASKED QUESTION: Fentanyl Citrate Injection in the UK
1. Is Sublimaze still readily available in the UK?
While the brand Sublimaze is the "innovator" item, most UK health centers currently utilize generic variations produced by business 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 typically available in 2ml (100mcg) and 10ml (500mcg) ampoules.
3. Can Fentanyl injection be offered in the house?
No. Fentanyl citrate injection is practically exclusively utilized in healthcare facility settings (theatre, ICU, A&E) because of the threat of rapid respiratory anxiety, which requires 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 suggests 100 micrograms of fentanyl is roughly comparable to 10 milligrams of morphine.
5. What is the antidote for a Fentanyl overdose?
Naloxone (brand name Prenoxad or generic) is the basic opioid antagonist utilized to reverse the effects of fentanyl if breathing depression occurs.
Summary
Fentanyl citrate remains among 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 mostly used in its generic kind supplied by manufacturers such as Hameln, Wockhardt, and Martindale Pharma.
Its high strength and rapid beginning make it an exceptional tool for handling sharp pain and assisting in anaesthesia, however these exact same qualities necessitate the greatest level of medical monitoring and regulative oversight. Understanding the brand names and the pharmacological profile of this drug is vital for safe practice and client security within the NHS and the broader UK healthcare sector.
Disclaimer: This post is for informative purposes only and does not constitute medical recommendations. Fentanyl Pills UK ought to constantly refer to the British National Formulary (BNF) or their regional Trust standards for dosing and administration procedures.
