Fentanyl Citrate Injection in the UK: A Guide to Brand Names, Uses, and Clinical Overview
Fentanyl citrate is a powerful artificial opioid analgesic, commonly acknowledged in clinical medicine for its rapid beginning and short period of action. Within the United Kingdom's healthcare system, fentanyl plays an important function in perioperative care, intensive care, and the management of intense, extreme discomfort. Due to the fact that of its strength-- approximated to be 50 to 100 times that of morphine-- its administration by means of injection is strictly managed and generally reserved for healthcare facility settings.
For health care specialists, trainees, or clients looking for to understand the medicinal landscape in the UK, recognizing the available brand and producers of fentanyl citrate injection is essential. This article provides an extensive introduction of the brand, clinical indicators, 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 potent agonist at the μ-opioid (mu-opioid) receptors in the main nerve system. When administered via intravenous (IV) or intramuscular (IM) injection, it offers rapid analgesia. In the UK, it is categorized 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 offer intense discomfort relief while keeping hemodynamic stability, making it a favored choice for heart surgical treatments and for clients with delicate 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 brand. However, Fentanyl Test Strips UK supply the NHS and private medical facilities with specific formulas. Historically, the most well-known brand name associated with fentanyl citrate was Sublimaze, initially established by Janssen Pharmaceutica. While the name Sublimaze is still used worldwide and informally in some UK theatres, the bulk of the supply in the UK is now offered by generic production professionals.
Table 1: Common Manufacturers and Product Details in the UK
| Manufacturer | 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 trademark name "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.
Medical Indications for Injection
Fentanyl citrate injection is utilized throughout numerous departments, from the Emergency Department (ED) to the Operating Theatre. Its usage is normally divided into 3 categories:
1. Anaesthesia
Fentanyl is a cornerstone of modern-day anaesthesia. It is utilized as an analgesic supplement throughout the induction and upkeep of general anaesthesia. It assists blunt the body's physiological "tension response" to intubation and surgical cut.
2. Post-operative Recovery
In the Recovery Room (PACU), fentanyl might be administered in little, titrated boluses to handle 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 utilized as an infusion to offer constant analgesia for patients who are mechanically aerated. Its short 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 supply sedation and analgesia before relocating to theatre. |
| Induction | To work together with induction agents (like Propofol) for a smooth transition to unconsciousness. |
| Upkeep | To handle the surgical pain stimulus during the procedure. |
| 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 ascending discomfort paths, modifying the perception of and reaction to discomfort. It likewise increases the pain threshold.
- Start 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 via the CYP3A4 enzyme.
- Excretion: Mostly via the kidneys.
Since fentanyl is extremely 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
As with all powerful opioids, fentanyl citrate brings a risk of significant negative effects, especially relating to the respiratory and cardiovascular systems.
Common Side Effects:
- Respiratory Depression: The most severe danger; it lowers the drive to breathe.
- Bradycardia: A slow heart rate.
- Hypotension: Low blood pressure.
- Muscle Rigidity: Specifically "wooden chest syndrome," where the chest wall becomes too stiff to ventilate easily (generally accompanies high-dose rapid IV administration).
- Nausea and Vomiting: Common in the post-operative stage.
- Pruritus: Itching, often around the nose or torso.
Contraindications and Cautions:
- Known hypersensitivity to fentanyl or other opioid agonists.
- Breathing depression in the absence of resuscitative devices.
- Concurrent use 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 regulated to avoid diversion and abuse.
- Storage: It should be kept in a locked "Controlled Drugs" (CD) cabinet that fulfills the British Standard for security.
- Record Keeping: Every dose administered must be taped in a Controlled Drugs Register, signed by 2 qualified healthcare professionals (normally a physician and a nurse, or 2 nurses).
- Disposal: Any wasted or unused portion of an ampoule should be witnessed and damaged according to local trust policy (typically utilizing a denaturing set).
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" product, many UK health centers currently use generic versions manufactured by companies like Hameln or Martindale. These are pharmacologically similar.
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 readily available in 2ml (100mcg) and 10ml (500mcg) ampoules.
3. Can Fentanyl injection be offered in the house?
No. Fentanyl citrate injection is almost exclusively used in hospital settings (theatre, ICU, A&E) since of the danger of quick breathing depression, which requires instant access to oxygen and resuscitation devices.
4. How does Fentanyl compare to Morphine in strength?
Fentanyl is around 50 to 100 times more potent than morphine. This indicates 100 micrograms of fentanyl is approximately 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 antagonist used to reverse the results of fentanyl if respiratory depression happens.
Summary
Fentanyl citrate stays one of the most essential medications in the UK's surgical and extensive care environments. While it might be referred to by the historical brand Sublimaze, it is primarily used in its generic kind supplied by makers such as Hameln, Wockhardt, and Martindale Pharma.
Its high strength and fast beginning make it an unequaled tool for managing intense pain and helping with anaesthesia, however these same qualities demand the highest level of medical tracking and regulatory oversight. Understanding learn more and the pharmacological profile of this drug is necessary for safe practice and client safety within the NHS and the wider UK health care sector.
Disclaimer: This short article is for educational functions only and does not constitute medical suggestions. Health care experts should always describe the British National Formulary (BNF) or their regional Trust guidelines for dosing and administration procedures.
