Fentanyl Citrate Injection in the UK: A Guide to Brand Names, Uses, and Clinical Overview
Fentanyl citrate is a potent artificial opioid analgesic, widely recognized in scientific medicine for its quick start and short period of action. Within the United Kingdom's health care system, fentanyl plays a crucial function in perioperative care, intensive care, and the management of acute, extreme pain. Due to the fact that of its strength-- approximated to be 50 to 100 times that of morphine-- its administration through injection is strictly controlled and normally reserved for health center settings.
For health care experts, students, or clients looking for to comprehend the medicinal landscape in the UK, determining the offered trademark name and manufacturers of fentanyl citrate injection is vital. This blog site post supplies a thorough overview of the brand names, medical 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 nervous system. When administered through intravenous (IV) or intramuscular (IM) injection, it provides rapid 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 offer intense pain relief while maintaining hemodynamic stability, making it a preferred choice for heart surgical treatments and for patients with vulnerable 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) instead of a brand name. Nevertheless, numerous producers provide the NHS and personal medical facilities with particular formulations. Historically, the most well-known trademark name associated with fentanyl citrate was Sublimaze, initially established by Janssen Pharmaceutica. While the name Sublimaze is still used globally and informally in some UK theatres, the majority of the supply in the UK is now supplied by generic production experts.
Table 1: Common Manufacturers and Product Details in the UK
| Producer | Item 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 "Sublimaze" may 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.
Medical Indications for Injection
Fentanyl citrate injection is used across different departments, from the Emergency Department (ED) to the Operating Theatre. Its use is generally divided into three categories:
1. Anaesthesia
Fentanyl is a cornerstone of contemporary anaesthesia. It is used as an analgesic supplement throughout the induction and maintenance of basic anaesthesia. It assists blunt the body's physiological "stress action" to intubation and surgical incision.
2. Post-operative Recovery
In the Recovery Room (PACU), fentanyl may 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 provide constant analgesia for patients who are mechanically ventilated. Its short half-life allows for more predictable "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 comply with induction agents (like Propofol) for a smooth transition to unconsciousness. |
| Upkeep | To manage the surgical pain stimulus throughout the procedure. |
| Analgesic Supplement | Used in regional anaesthesia (like epidurals) to enhance discomfort relief. |
Mechanism of Action and Pharmacokinetics
Fentanyl works by binding to mu-opioid receptors. This binding prevents rising discomfort paths, modifying the perception of and action to discomfort. It also increases the discomfort limit.
- 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 through the CYP3A4 enzyme.
- Excretion: Mostly through the kidneys.
Because fentanyl is highly lipid-soluble, it crosses the blood-brain barrier almost immediately, which discusses why the analgesic result is felt so much faster than with morphine or oxycodone.
Security and Side Effects
As with all potent opioids, fentanyl citrate brings a risk of considerable side effects, particularly connecting to the breathing and cardiovascular systems.
Typical Side Effects:
- Respiratory Depression: The most severe risk; it minimizes 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 ventilate easily (typically accompanies high-dose rapid IV administration).
- Nausea and Vomiting: Common in the post-operative stage.
- Pruritus: Itching, frequently 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 (danger of serotonin syndrome).
- Myasthenia gravis (due to muscle-relaxing interactions).
Regulation 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) cupboard that meets the British Standard for security.
- Record Keeping: Every dose administered must be tape-recorded in a Controlled Drugs Register, signed by 2 certified healthcare specialists (usually a doctor and a nurse, or two nurses).
- Disposal: Any lost or unused portion of an ampoule must be experienced and damaged according to regional trust policy (typically using a denaturing set).
FAQ: Fentanyl Citrate Injection in the UK
1. Fentanyl Citrate Injection Buy UK Sublimaze still readily available in the UK?
While the brand name Sublimaze is the "innovator" item, many UK health centers currently use generic variations produced by business like Hameln or Martindale. These are pharmacologically identical.
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 typically available in 2ml (100mcg) and 10ml (500mcg) ampoules.
3. Can Fentanyl injection be offered at home?
No. Fentanyl citrate injection is practically solely used in hospital settings (theatre, ICU, A&E) due to the fact that of the threat of rapid respiratory depression, which needs instant access to oxygen and resuscitation devices.
4. How does Fentanyl compare to Morphine in strength?
Fentanyl is roughly 50 to 100 times more potent than morphine. This suggests 100 micrograms of fentanyl is approximately equivalent 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 effects of fentanyl if breathing anxiety takes place.
Summary
Fentanyl citrate remains among the most important medications in the UK's surgical and intensive care environments. While it might be referred to by the historical trademark name Sublimaze, it is mainly used in its generic type provided by producers such as Hameln, Wockhardt, and Martindale Pharma.
Its high potency and fast beginning make it an unrivaled tool for handling intense discomfort and assisting in anaesthesia, however these exact same qualities require the greatest level of clinical monitoring and regulatory oversight. Understanding the brands and the pharmacological profile of this drug is essential for safe practice and patient safety within the NHS and the wider UK healthcare sector.
Disclaimer: This short article is for educational functions only and does not constitute medical suggestions. Health care professionals must always describe the British National Formulary (BNF) or their regional Trust standards for dosing and administration procedures.
