Fentanyl Citrate Injection in the UK: A Guide to Brand Names, Uses, and Clinical Overview
Fentanyl citrate is a powerful artificial opioid analgesic, extensively recognized in clinical medicine for its quick onset and brief period of action. Within the United Kingdom's health care system, fentanyl plays a critical function in perioperative care, extensive care, and the management of intense, extreme discomfort. Because of its effectiveness-- approximated to be 50 to 100 times that of morphine-- its administration by means of injection is strictly controlled and normally booked for medical facility settings.
For health care professionals, trainees, or clients looking for to comprehend the pharmacological landscape in the UK, identifying the available trademark name and manufacturers of fentanyl citrate injection is important. This blog post provides a comprehensive overview of the brand, clinical signs, and regulatory status of fentanyl citrate injections in the United Kingdom.
What is Fentanyl Citrate?
Fentanyl citrate is a phenylpiperidine derivative that serves as a powerful agonist at the μ-opioid (mu-opioid) receptors in the central nervous system. When administered by means of intravenous (IV) or intramuscular (IM) injection, it offers 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 main appeal in surgical settings is its capability to supply intense discomfort relief while maintaining hemodynamic stability, making it a favored choice for cardiac surgeries and for patients with fragile cardiovascular systems.
Fentanyl Citrate Injection Brand Names and Manufacturers in the UK
In the UK market, many pharmaceutical products are prescribed by their generic name (Fentanyl) instead of a trademark name. However, Fentanyl UK Delivery supply the NHS and private medical facilities with particular formulas. Historically, the most well-known trademark name related to fentanyl citrate was Sublimaze, initially developed by Janssen Pharmaceutica. While the name Sublimaze is still utilized worldwide and colloquially in some UK theatres, most of the supply in the UK is now supplied by generic production experts.
Table 1: Common Manufacturers and Product Details in the UK
| Maker | 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 variations, which are bioequivalent to the original branded item.
Scientific Indications for Injection
Fentanyl citrate injection is made use of across numerous departments, from the Emergency Department (ED) to the Operating Theatre. Its usage is typically divided into three categories:
1. Anaesthesia
Fentanyl is a foundation of modern anaesthesia. It is utilized as an analgesic supplement during the induction and upkeep of general anaesthesia. It helps blunt the body's physiological "tension reaction" to intubation and surgical incision.
2. Post-operative Recovery
In the Recovery Room (PACU), fentanyl may be administered in little, titrated boluses to manage 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 regularly utilized as an infusion to offer continuous analgesia for patients who are mechanically aerated. Its short half-life enables for more foreseeable "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 transferring to theatre. |
| Induction | To work together with induction agents (like Propofol) for a smooth transition to unconsciousness. |
| Maintenance | To handle the surgical pain stimulus throughout the procedure. |
| Analgesic Supplement | Utilized in local anaesthesia (like epidurals) to boost pain relief. |
Mechanism of Action and Pharmacokinetics
Fentanyl works by binding to mu-opioid receptors. This binding hinders rising pain pathways, altering the perception of and reaction to pain. 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).
- Metabolic process: Primarily in the liver through the CYP3A4 enzyme.
- Excretion: Mostly through the kidneys.
Due to the fact that fentanyl is extremely lipid-soluble, it crosses the blood-brain barrier almost immediately, which explains why the analgesic result is felt so much faster than with morphine or oxycodone.
Security and Side Effects
As with all powerful opioids, fentanyl citrate brings a danger of substantial side results, especially connecting to the breathing and cardiovascular systems.
Common Side Effects:
- Respiratory Depression: The most serious danger; it minimizes 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 ventilate easily (normally accompanies high-dose fast 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 equipment.
- 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 prevent diversion and misuse.
- Storage: It should be kept in a locked "Controlled Drugs" (CD) cupboard that satisfies the British Standard for security.
- Record Keeping: Every dose administered need to be tape-recorded in a Controlled Drugs Register, signed by 2 certified health care experts (typically a physician and a nurse, or 2 nurses).
- Disposal: Any squandered or unused portion of an ampoule must be experienced and damaged according to local trust policy (generally using a denaturing kit).
FREQUENTLY ASKED QUESTION: Fentanyl Citrate Injection in the UK
1. Is Sublimaze still available in the UK?
While the brand Sublimaze is the "innovator" product, a lot of UK medical facilities currently utilize generic versions manufactured by companies 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 usually offered in 2ml (100mcg) and 10ml (500mcg) ampoules.
3. Can Fentanyl injection be offered at home?
No. Fentanyl citrate injection is practically solely used in health center settings (theatre, ICU, A&E) because of the threat of fast breathing depression, which requires instant access to oxygen and resuscitation equipment.
4. How does Fentanyl compare to Morphine in strength?
Fentanyl is roughly 50 to 100 times more potent than morphine. This means 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 antagonist used to reverse the effects of fentanyl if respiratory anxiety happens.
Summary
Fentanyl citrate stays among the most vital medications in the UK's surgical and extensive care environments. While it may be referred to by the historic brand Sublimaze, it is mostly used in its generic type provided by makers such as Hameln, Wockhardt, and Martindale Pharma.
Its high effectiveness and quick beginning make it an exceptional tool for handling sharp pain and assisting in anaesthesia, but these very same qualities require the highest level of medical tracking and regulative oversight. Understanding the brands and the pharmacological profile of this drug is essential for safe practice and patient security within the NHS and the wider UK health care sector.
Disclaimer: This article is for educational purposes just and does not make up medical recommendations. Health care specialists must always refer to the British National Formulary (BNF) or their local Trust guidelines for dosing and administration protocols.
