Fentanyl Citrate Injection in the UK: A Guide to Brand Names, Uses, and Clinical Overview
Fentanyl citrate is a potent artificial opioid analgesic, widely acknowledged in scientific medication for its fast start and short period of action. Within the United Kingdom's healthcare system, fentanyl plays a vital function in perioperative care, intensive care, and the management of severe, severe pain. Since of its effectiveness-- approximated to be 50 to 100 times that of morphine-- its administration via injection is strictly controlled and usually booked for healthcare facility settings.
For healthcare experts, students, or patients looking for to understand the medicinal landscape in the UK, recognizing the available trademark name and makers of fentanyl citrate injection is essential. This blog post supplies a comprehensive summary of the trademark name, 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 central anxious system. When administered by means of intravenous (IV) or intramuscular (IM) injection, it provides fast analgesia. In read more , 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 primary appeal in surgical settings is its ability to provide intense discomfort relief while keeping hemodynamic stability, making it a preferred option 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, numerous pharmaceutical products are recommended by their generic name (Fentanyl) rather than a trademark name. However, numerous producers provide the NHS and personal medical facilities with specific formulas. Historically, the most well-known trademark name connected with fentanyl citrate was Sublimaze, initially developed by Janssen Pharmaceutica. While the name Sublimaze is still utilized globally and colloquially in some UK theatres, the bulk of the supply in the UK is now provided by generic manufacturing specialists.
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 dominated by Hameln and Martindale generic variations, which are bioequivalent to the original top quality product.
Scientific Indications for Injection
Fentanyl citrate injection is utilized throughout numerous departments, from the Emergency Department (ED) to the Operating Theatre. Its usage is usually divided into three classifications:
1. Anaesthesia
Fentanyl is a foundation of modern-day anaesthesia. It is used as an analgesic supplement throughout the induction and maintenance of general 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 small, 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 used as an infusion to supply continuous analgesia for patients who are mechanically aerated. Its brief half-life permits for 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 cooperate with induction agents (like Propofol) for a smooth transition to unconsciousness. |
| Upkeep | To handle the surgical discomfort stimulus throughout the procedure. |
| 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 pain paths, altering the understanding of and reaction to pain. It likewise increases the pain limit.
- 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 through the CYP3A4 enzyme.
- Excretion: Mostly through the kidneys.
Because fentanyl is highly lipid-soluble, it crosses the blood-brain barrier practically instantly, which describes why the analgesic impact is felt so much faster than with morphine or oxycodone.
Safety and Side Effects
Just like all powerful opioids, fentanyl citrate brings a danger of considerable negative effects, particularly associating with the breathing and cardiovascular systems.
Common Side Effects:
- Respiratory Depression: The most major threat; it minimizes the drive to breathe.
- Bradycardia: A slow heart rate.
- Hypotension: Low blood pressure.
- Muscle Rigidity: Specifically "wooden 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.
- Breathing depression in the lack 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 must be kept in a locked "Controlled Drugs" (CD) cupboard that fulfills the British Standard for security.
- Record Keeping: Every dosage administered should be taped in a Controlled Drugs Register, signed by two competent health care professionals (generally a physician and a nurse, or 2 nurses).
- Disposal: Any wasted or unused part of an ampoule need to be witnessed and destroyed according to regional trust policy (usually using a denaturing set).
FAQ: Fentanyl Citrate Injection in the UK
1. Is Sublimaze still available in the UK?
While the brand name Sublimaze is the "innovator" product, many UK hospitals currently use generic versions produced by companies like Hameln or Martindale. These are pharmacologically identical.
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 usually available in 2ml (100mcg) and 10ml (500mcg) ampoules.
3. Can Fentanyl injection be provided at home?
No. Fentanyl citrate injection is nearly solely utilized in medical facility settings (theatre, ICU, A&E) because of the threat of quick breathing anxiety, which requires instant access to oxygen and resuscitation devices.
4. How does Fentanyl compare to Morphine in strength?
Fentanyl is roughly 50 to 100 times more powerful than morphine. This indicates 100 micrograms of fentanyl is approximately 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 villain used to reverse the effects of fentanyl if respiratory depression happens.
Summary
Fentanyl citrate remains one of the most vital medications in the UK's surgical and intensive care environments. While it may be described by the historic brand Sublimaze, it is mostly used in its generic type provided by producers such as Hameln, Wockhardt, and Martindale Pharma.
Its high effectiveness and quick start make it an unparalleled tool for handling intense discomfort and facilitating anaesthesia, but these same qualities necessitate the greatest level of clinical tracking and regulatory oversight. Comprehending the brands and the medicinal profile of this drug is vital 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 make up medical recommendations. Healthcare experts ought to constantly refer to the British National Formulary (BNF) or their local Trust standards for dosing and administration procedures.
