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 clinical medication for its quick start and brief duration of action. Within the United Kingdom's healthcare system, fentanyl plays an important role in perioperative care, intensive care, and the management of intense, serious pain. Because of Fentanyl Citrate Dosage UK -- estimated to be 50 to 100 times that of morphine-- its administration through injection is strictly controlled and generally scheduled for medical facility settings.
For health care specialists, students, or clients seeking to comprehend the medicinal landscape in the UK, identifying the readily available brand name names and makers of fentanyl citrate injection is necessary. This blog site post provides a thorough summary of the brand names, clinical 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 powerful agonist at the μ-opioid (mu-opioid) receptors in the main nervous system. When administered via 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 ability to provide intense pain relief while keeping hemodynamic stability, making it a favored choice for heart surgeries and for clients 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. Nevertheless, several manufacturers provide the NHS and private medical facilities with specific formulations. Historically, the most popular trademark name connected with fentanyl citrate was Sublimaze, originally developed by Janssen Pharmaceutica. While the name Sublimaze is still utilized globally and informally in some UK theatres, most of the supply in the UK is now provided by generic production professionals.
Table 1: Common Manufacturers and Product Details in the UK
| Manufacturer | Product Description | Typical 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" 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 branded product.
Medical Indications for Injection
Fentanyl citrate injection is made use of across different 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 anaesthesia. It is used as an analgesic supplement during the induction and upkeep of general anaesthesia. It helps blunt the body's physiological "stress reaction" to intubation and surgical cut.
2. Post-operative Recovery
In the Recovery Room (PACU), fentanyl might be administered in small, 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 supply continuous analgesia for clients who are mechanically aerated. Its brief half-life enables more predictable "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 moving to theatre. |
| Induction | To cooperate with induction agents (like Propofol) for a smooth transition to unconsciousness. |
| Upkeep | To handle the surgical discomfort stimulus during the treatment. |
| Analgesic Supplement | Utilized in regional anaesthesia (like epidurals) to improve pain relief. |
Mechanism of Action and Pharmacokinetics
Fentanyl works by binding to mu-opioid receptors. This binding prevents ascending discomfort paths, altering the perception of and response to pain. It also increases the discomfort threshold.
- Beginning of Action: 1-- 2 minutes (Intravenous).
- Peak Effect: 3-- 5 minutes.
- Duration: 30-- 60 minutes (making it highly titratable).
- Metabolic process: Primarily in the liver by means of the CYP3A4 enzyme.
- Excretion: Mostly by means of the kidneys.
Because fentanyl is highly lipid-soluble, it crosses the blood-brain barrier almost instantly, which discusses why the analgesic effect is felt a lot faster than with morphine or oxycodone.
Security and Side Effects
As with all powerful opioids, fentanyl citrate brings a threat of significant adverse effects, particularly relating to the respiratory and cardiovascular systems.
Typical Side Effects:
- Respiratory Depression: The most serious risk; it decreases the drive to breathe.
- Bradycardia: A slow heart rate.
- Hypotension: Low high blood pressure.
- Muscle Rigidity: Specifically "wooden chest syndrome," where the chest wall ends up being too stiff to aerate quickly (generally occurs with high-dose rapid IV administration).
- Queasiness and Vomiting: Common in the post-operative phase.
- Pruritus: Itching, often around the nose or torso.
Contraindications and Cautions:
- Known hypersensitivity to fentanyl or other opioid agonists.
- Respiratory depression in the lack of resuscitative devices.
- Concurrent use of Monoamine Oxidase Inhibitors (MAOIs) within the last 14 days (threat 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 should be kept in a locked "Controlled Drugs" (CD) cupboard that fulfills the British Standard for security.
- Record Keeping: Every dosage administered should be recorded in a Controlled Drugs Register, signed by two certified health care professionals (generally a doctor and a nurse, or 2 nurses).
- Disposal: Any squandered or unused portion of an ampoule need to be experienced and destroyed according to local trust policy (typically using 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, many UK hospitals presently 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 normally readily available in 2ml (100mcg) and 10ml (500mcg) ampoules.
3. Can Fentanyl injection be given at home?
No. Fentanyl citrate injection is almost specifically utilized in healthcare facility settings (theatre, ICU, A&E) since of the threat of rapid respiratory anxiety, which needs immediate access to oxygen and resuscitation equipment.
4. How does Fentanyl compare to Morphine in strength?
Fentanyl is approximately 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 remedy for a Fentanyl overdose?
Naloxone (trademark name Prenoxad or generic) is the basic opioid antagonist utilized to reverse the impacts of fentanyl if respiratory depression occurs.
Summary
Fentanyl citrate stays one of the most crucial medications in the UK's surgical and extensive care environments. While it might be referred to by the historic brand Sublimaze, it is mainly used in its generic form provided by producers such as Hameln, Wockhardt, and Martindale Pharma.
Its high strength and rapid onset make it an unequaled tool for managing sharp pain and helping with anaesthesia, however these very same qualities necessitate the highest level of scientific monitoring and regulatory oversight. Comprehending the brand names and the medicinal 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 informational purposes only and does not make up medical advice. Health care professionals ought to always refer to the British National Formulary (BNF) or their regional Trust guidelines for dosing and administration procedures.
