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 scientific medication for its quick start and brief duration of action. Within Fentanyl Citrate Dosage UK United Kingdom's health care system, fentanyl plays a vital function in perioperative care, intensive care, and the management of acute, severe discomfort. Due to the fact that of its strength-- approximated to be 50 to 100 times that of morphine-- its administration via injection is strictly controlled and typically scheduled for healthcare facility settings.
For healthcare professionals, students, or clients seeking to understand the pharmacological landscape in the UK, recognizing the offered brand name names and producers of fentanyl citrate injection is important. This post supplies a comprehensive overview of the brand name names, medical 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 potent agonist at the μ-opioid (mu-opioid) receptors in the central anxious system. When administered via intravenous (IV) or intramuscular (IM) injection, it provides fast 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 main appeal in surgical settings is its capability to provide intense pain relief while maintaining hemodynamic stability, making it a favored choice for cardiac surgical treatments and for patients with vulnerable cardiovascular systems.
Fentanyl Citrate Injection Brand Names and Manufacturers in the UK
In the UK market, many pharmaceutical items are prescribed by their generic name (Fentanyl) instead of a trademark name. Nevertheless, numerous manufacturers provide the NHS and personal health centers with particular formulas. Historically, the most popular trademark name associated with fentanyl citrate was Sublimaze, initially established by Janssen Pharmaceutica. While the name Sublimaze is still utilized internationally and colloquially in some UK theatres, the majority of the supply in the UK is now supplied by generic manufacturing professionals.
Table 1: Common Manufacturers and Product Details in the UK
| Manufacturer | 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" might still appear on some procurement lists, the UK medical landscape is controlled by Hameln and Martindale generic variations, which are bioequivalent to the initial branded product.
Scientific Indications for Injection
Fentanyl citrate injection is used throughout numerous departments, from the Emergency Department (ED) to the Operating Theatre. Its usage is generally divided into 3 categories:
1. Anaesthesia
Fentanyl is a foundation of contemporary anaesthesia. It is used as an analgesic supplement during the induction and upkeep of basic anaesthesia. It helps blunt the body's physiological "tension action" to intubation and surgical incision.
2. Post-operative Recovery
In the Recovery Room (PACU), fentanyl may be administered in small, titrated boluses to manage instant post-surgical pain before shifts are made to longer-acting opioids or oral medications.
3. Intensive Care (ICU)
In the Intensive Care Unit, fentanyl is regularly used as an infusion to supply continuous analgesia for clients who are mechanically ventilated. Its brief half-life allows for 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 transferring to theatre. |
| Induction | To comply with induction representatives (like Propofol) for a smooth shift to unconsciousness. |
| Maintenance | To handle the surgical discomfort stimulus throughout the procedure. |
| Analgesic Supplement | Used in local anaesthesia (like epidurals) to improve pain relief. |
Mechanism of Action and Pharmacokinetics
Fentanyl works by binding to mu-opioid receptors. This binding inhibits rising discomfort pathways, altering the understanding of and reaction to pain. It likewise increases the pain limit.
- Beginning of Action: 1-- 2 minutes (Intravenous).
- Peak Effect: 3-- 5 minutes.
- Period: 30-- 60 minutes (making it highly titratable).
- Metabolism: Primarily in the liver through the CYP3A4 enzyme.
- Excretion: Mostly via the kidneys.
Because fentanyl is highly lipid-soluble, it crosses the blood-brain barrier nearly instantly, which describes why the analgesic impact is felt so much faster than with morphine or oxycodone.
Safety and Side Effects
Similar to all powerful opioids, fentanyl citrate brings a danger of significant adverse effects, especially relating to the breathing and cardiovascular systems.
Common Side Effects:
- Respiratory Depression: The most major risk; it reduces the drive to breathe.
- Bradycardia: A slow heart rate.
- Hypotension: Low high blood pressure.
- Muscle Rigidity: Specifically "wood chest syndrome," where the chest wall becomes too stiff to aerate quickly (typically accompanies high-dose quick IV administration).
- Nausea 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.
- Respiratory depression in the lack of resuscitative equipment.
- Concurrent usage of Monoamine Oxidase Inhibitors (MAOIs) within the last 14 days (danger of serotonin syndrome).
- Myasthenia gravis (due to muscle-relaxing interactions).
Regulation and Storage in the UK
In the United Kingdom, fentanyl citrate is strictly regulated to avoid diversion and abuse.
- Storage: It must be kept in a locked "Controlled Drugs" (CD) cabinet that fulfills the British Standard for security.
- Record Keeping: Every dose administered need to be recorded in a Controlled Drugs Register, signed by 2 certified healthcare specialists (usually a doctor and a nurse, or 2 nurses).
- Disposal: Any wasted or unused portion of an ampoule must be witnessed and ruined according to local trust policy (normally utilizing a denaturing package).
FAQ: Fentanyl Citrate Injection in the UK
1. Is Sublimaze still available in the UK?
While the brand name Sublimaze is the "innovator" item, a lot of UK hospitals currently use generic variations produced by companies like Hameln or Martindale. These are pharmacologically identical.
2. What is the standard concentration of Fentanyl injection in the UK?
The standard concentration is 50 micrograms per millilitre (50 mcg/ml). It is usually readily available in 2ml (100mcg) and 10ml (500mcg) ampoules.
3. Can Fentanyl injection be provided in your home?
No. Fentanyl citrate injection is practically specifically used in healthcare facility settings (theatre, ICU, A&E) since of the risk of quick breathing depression, which needs instant access to oxygen and resuscitation devices.
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 equivalent to 10 milligrams of morphine.
5. What is the antidote for a Fentanyl overdose?
Naloxone (brand name Prenoxad or generic) is the standard opioid antagonist used to reverse the impacts of fentanyl if breathing depression happens.
Summary
Fentanyl citrate remains among the most vital medications in the UK's surgical and intensive care environments. While it may be described by the historic brand name Sublimaze, it is mainly utilized in its generic form supplied by manufacturers such as Hameln, Wockhardt, and Martindale Pharma.
Its high effectiveness and fast start make it an unequaled tool for managing severe pain and assisting in anaesthesia, but these exact same qualities necessitate the greatest level of medical tracking and regulatory oversight. Understanding the brand names and the pharmacological profile of this drug is important for safe practice and patient security within the NHS and the broader UK health care sector.
Disclaimer: This post is for informational functions just and does not constitute medical suggestions. Health care experts ought to constantly describe the British National Formulary (BNF) or their regional Trust standards for dosing and administration procedures.
