Fentanyl Citrate Injection in the UK: A Guide to Brand Names, Uses, and Clinical Overview
Fentanyl citrate is a potent synthetic opioid analgesic, extensively acknowledged in medical medication for its quick start and short period of action. Within the United Kingdom's health care system, fentanyl plays a vital function in perioperative care, extensive care, and the management of severe, extreme discomfort. Because of its potency-- approximated to be 50 to 100 times that of morphine-- its administration through injection is strictly controlled and typically scheduled for hospital settings.
For health care experts, trainees, or patients seeking to comprehend the medicinal landscape in the UK, recognizing the offered brand and producers of fentanyl citrate injection is necessary. This article supplies a comprehensive summary of the trademark name, scientific signs, 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 powerful agonist at the μ-opioid (mu-opioid) receptors in the main nervous system. When administered through intravenous (IV) or intramuscular (IM) injection, it offers fast 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 primary appeal in surgical settings is its capability to offer intense pain relief while preserving hemodynamic stability, making it a favored choice for heart surgeries and for clients with fragile cardiovascular systems.
Fentanyl Citrate Injection Brand Names and Manufacturers in the UK
In the UK market, numerous pharmaceutical products are prescribed by their generic name (Fentanyl) rather than a trademark name. However, numerous makers supply the NHS and personal health centers with specific solutions. Historically, the most famous trademark name related to fentanyl citrate was Sublimaze, originally established 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 supplied by generic production experts.
Table 1: Common Manufacturers and Product Details in the UK
| Maker | 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" 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 use is normally divided into 3 categories:
1. Anaesthesia
Fentanyl is a cornerstone of contemporary anaesthesia. It is utilized as an analgesic supplement during the induction and upkeep of basic anaesthesia. website helps blunt the body's physiological "stress action" to intubation and surgical cut.
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 regularly utilized as an infusion to supply constant analgesia for patients who are mechanically aerated. Its brief half-life permits 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 transferring to theatre. |
| Induction | To work together with induction representatives (like Propofol) for a smooth transition to unconsciousness. |
| Maintenance | To manage the surgical pain stimulus during 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 inhibits ascending pain paths, altering the perception of and action to discomfort. It also increases the discomfort limit.
- Onset of Action: 1-- 2 minutes (Intravenous).
- Peak Effect: 3-- 5 minutes.
- Duration: 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 highly lipid-soluble, it crosses the blood-brain barrier almost quickly, which discusses why the analgesic impact is felt so much faster than with morphine or oxycodone.
Security and Side Effects
Just like all powerful opioids, fentanyl citrate brings a danger of significant negative effects, particularly relating to the breathing and cardiovascular systems.
Common Side Effects:
- Respiratory Depression: The most serious threat; 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 quickly (usually happens with high-dose fast IV administration).
- Queasiness and Vomiting: Common in the post-operative phase.
- Pruritus: Itching, frequently around the nose or torso.
Contraindications and Cautions:
- Known hypersensitivity to fentanyl or other opioid agonists.
- Breathing 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 must be kept in a locked "Controlled Drugs" (CD) cabinet that meets the British Standard for security.
- Record Keeping: Every dose administered should be recorded in a Controlled Drugs Register, signed by 2 qualified healthcare experts (usually a physician and a nurse, or more nurses).
- Disposal: Any lost or unused portion of an ampoule should be experienced and ruined according to local trust policy (generally using a denaturing kit).
FREQUENTLY ASKED QUESTION: Fentanyl Citrate Injection in the UK
1. Is Sublimaze still offered in the UK?
While the trademark name Sublimaze is the "innovator" product, the majority of UK medical facilities currently use 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 standard concentration is 50 micrograms per millilitre (50 mcg/ml). It is generally offered in 2ml (100mcg) and 10ml (500mcg) ampoules.
3. Can Fentanyl injection be given at home?
No. Fentanyl citrate injection is nearly exclusively used in health center settings (theatre, ICU, A&E) since of the risk of quick respiratory depression, which needs instant access to oxygen and resuscitation devices.
4. How does Fentanyl compare to Morphine in strength?
Fentanyl is around 50 to 100 times more powerful than morphine. This indicates 100 micrograms of fentanyl is roughly equivalent to 10 milligrams of morphine.
5. What is the remedy for a Fentanyl overdose?
Naloxone (brand name Prenoxad or generic) is the standard opioid villain utilized to reverse the effects of fentanyl if breathing depression takes place.
Summary
Fentanyl citrate stays one of the most crucial medications in the UK's surgical and intensive care environments. While it might be referred to by the historic brand name Sublimaze, it is mainly used in its generic form supplied by producers such as Hameln, Wockhardt, and Martindale Pharma.
Its high potency and quick onset make it an unequaled tool for handling intense discomfort and assisting in anaesthesia, however these very same qualities necessitate the highest level of medical monitoring and regulatory oversight. Understanding the brand names and the pharmacological profile of this drug is important for safe practice and client security within the NHS and the wider UK healthcare sector.
Disclaimer: This short article is for informative purposes only and does not make up medical recommendations. Healthcare specialists need to constantly describe the British National Formulary (BNF) or their regional Trust guidelines for dosing and administration procedures.
