Fentanyl Citrate Injection in the UK: A Guide to Brand Names, Uses, and Clinical Overview
Fentanyl citrate is a powerful synthetic opioid analgesic, commonly acknowledged in scientific medicine for its quick onset and brief period of action. Within the United Kingdom's healthcare system, fentanyl plays an important role in perioperative care, extensive care, and the management of intense, extreme discomfort. Due to the fact that of its effectiveness-- estimated to be 50 to 100 times that of morphine-- its administration by means of injection is strictly controlled and typically reserved for medical facility settings.
For healthcare specialists, students, or patients looking for to comprehend the medicinal landscape in the UK, identifying the available trademark name and makers of fentanyl citrate injection is vital. This article supplies an extensive summary of the trademark name, medical indications, and regulative 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 main nerve system. When administered by means of intravenous (IV) or intramuscular (IM) injection, it supplies 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 primary appeal in surgical settings is its ability to provide extreme discomfort relief while preserving hemodynamic stability, making it a preferred option for heart surgeries and for clients 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. Nevertheless, several manufacturers provide the NHS and personal hospitals with specific solutions. Historically, the most popular brand name related to fentanyl citrate was Sublimaze, originally developed by Janssen Pharmaceutica. While the name Sublimaze is still utilized worldwide and informally in some UK theatres, the majority of the supply in the UK is now offered by generic manufacturing experts.
Table 1: Common Manufacturers and Product Details in the UK
| Maker | 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 name "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 item.
Clinical Indications for Injection
Fentanyl citrate injection is made use of throughout numerous departments, from the Emergency Department (ED) to the Operating Theatre. Its usage is usually divided into three categories:
1. Anaesthesia
Fentanyl is a foundation of contemporary anaesthesia. It is utilized as an analgesic supplement throughout the induction and maintenance of general anaesthesia. It helps blunt the body's physiological "stress action" 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 often used as an infusion to supply constant analgesia for clients who are mechanically aerated. Its short half-life enables more foreseeable "wake-up" tests compared to drugs like morphine.
Table 2: Clinical Application Summary
| Application | Function of Fentanyl |
|---|---|
| Pre-medication | To offer sedation and analgesia before moving to theatre. |
| Induction | To work together with induction representatives (like Propofol) for a smooth transition to unconsciousness. |
| Upkeep | To handle the surgical discomfort stimulus throughout the treatment. |
| Analgesic Supplement | Used in regional anaesthesia (like epidurals) to enhance pain relief. |
Mechanism of Action and Pharmacokinetics
Fentanyl works by binding to mu-opioid receptors. This binding hinders rising pain pathways, modifying the perception of and response to pain. It likewise increases the pain threshold.
- Onset of Action: 1-- 2 minutes (Intravenous).
- Peak Effect: 3-- 5 minutes.
- Duration: 30-- 60 minutes (making it highly titratable).
- Metabolism: Primarily in the liver via the CYP3A4 enzyme.
- Excretion: Mostly through the kidneys.
Since fentanyl is highly lipid-soluble, it crosses the blood-brain barrier practically instantly, which discusses why the analgesic result is felt so much faster than with morphine or oxycodone.
Safety and Side Effects
Similar to all powerful opioids, fentanyl citrate carries a risk of considerable adverse effects, particularly relating to the breathing and cardiovascular systems.
Typical Side Effects:
- Respiratory Depression: The most severe risk; it reduces the drive to breathe.
- Bradycardia: A sluggish heart rate.
- Hypotension: Low blood pressure.
- Muscle Rigidity: Specifically "wood chest syndrome," where the chest wall becomes too stiff to aerate easily (typically accompanies high-dose rapid IV administration).
- Queasiness and Vomiting: Common in the post-operative phase.
- Pruritus: Itching, typically around the nose or upper body.
Contraindications and Cautions:
- Known hypersensitivity to fentanyl or other opioid agonists.
- Breathing anxiety 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).
Policy and Storage in the UK
In the United Kingdom, fentanyl citrate is strictly managed to avoid diversion and misuse.
- Storage: It should be kept in a locked "Controlled Drugs" (CD) cupboard that meets the British Standard for security.
- Record Keeping: Every dose administered should be tape-recorded in a Controlled Drugs Register, signed by 2 competent healthcare professionals (typically a physician and a nurse, or 2 nurses).
- Disposal: Any squandered or unused part of an ampoule should be experienced and destroyed according to regional trust policy (generally utilizing a denaturing package).
FAQ: Fentanyl Citrate Injection in the UK
1. Is Sublimaze still available in the UK?
While the trademark name Sublimaze is the "innovator" item, many UK healthcare 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). Fentanyl Powder UK is normally available in 2ml (100mcg) and 10ml (500mcg) ampoules.
3. Can Fentanyl injection be given in your home?
No. Fentanyl citrate injection is nearly solely used in healthcare facility settings (theatre, ICU, A&E) due to the fact that of the danger of quick breathing anxiety, which needs immediate 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 implies 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 villain used to reverse the effects of fentanyl if respiratory anxiety takes place.
Summary
Fentanyl citrate remains 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 name Sublimaze, it is mainly used in its generic type supplied by makers such as Hameln, Wockhardt, and Martindale Pharma.
Its high potency and rapid onset make it an unrivaled tool for handling severe discomfort and facilitating anaesthesia, but these exact same qualities require the highest level of clinical tracking and regulative oversight. Understanding the brands and the pharmacological profile of this drug is necessary for safe practice and client security within the NHS and the broader UK healthcare sector.
Disclaimer: This short article is for informative functions only and does not constitute medical advice. Healthcare specialists should constantly describe the British National Formulary (BNF) or their local Trust guidelines for dosing and administration protocols.
