Fentanyl Citrate Injection in the UK: A Guide to Brand Names, Uses, and Clinical Overview
Fentanyl citrate is a powerful artificial opioid analgesic, extensively acknowledged in scientific medicine for its quick start and brief duration of action. Within the United Kingdom's health care system, fentanyl plays a crucial role in perioperative care, intensive care, and the management of acute, extreme discomfort. Since of its strength-- estimated to be 50 to 100 times that of morphine-- its administration via injection is strictly controlled and typically booked for healthcare facility settings.
For healthcare professionals, trainees, or patients looking for to comprehend the medicinal landscape in the UK, determining the offered brand and producers of fentanyl citrate injection is important. This post provides a thorough summary of the brand, medical indicators, 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 anxious system. When administered by means of intravenous (IV) or intramuscular (IM) injection, it offers 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 primary appeal in surgical settings is its ability to supply extreme discomfort relief while preserving hemodynamic stability, making it a preferred option for heart surgeries and for clients with fragile cardiovascular systems.
Fentanyl Citrate Injection Brand Names and Manufacturers in the UK
In the UK market, many pharmaceutical items are recommended by their generic name (Fentanyl) rather than a brand. Nevertheless, several producers provide the NHS and private hospitals with specific formulas. Historically, the most well-known brand name connected with fentanyl citrate was Sublimaze, initially 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 manufacturing 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 versions, which are bioequivalent to the initial branded item.
Clinical Indications for Injection
Fentanyl citrate injection is utilized across numerous departments, from the Emergency Department (ED) to the Operating Theatre. Its usage is usually divided into three categories:
1. Anaesthesia
Fentanyl is a cornerstone of modern anaesthesia. It is used as an analgesic supplement throughout the induction and upkeep of general anaesthesia. It helps blunt the body's physiological "stress reaction" to intubation and surgical incision.
2. Post-operative Recovery
In the Recovery Room (PACU), fentanyl may be administered in little, titrated boluses to manage 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 often utilized as an infusion to offer constant analgesia for patients who are mechanically ventilated. Its short half-life permits more predictable "wake-up" tests compared to drugs like morphine.
Table 2: Clinical Application Summary
| Application | Role of Fentanyl |
|---|---|
| Pre-medication | To supply sedation and analgesia before moving to theatre. |
| Induction | To comply with induction representatives (like Propofol) for a smooth shift to unconsciousness. |
| Upkeep | To manage the surgical pain 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 ascending pain paths, modifying the perception of and action to discomfort. It also increases the pain threshold.
- Beginning of Action: 1-- 2 minutes (Intravenous).
- Peak Effect: 3-- 5 minutes.
- Duration: 30-- 60 minutes (making it highly titratable).
- Metabolism: Primarily in the liver by means of the CYP3A4 enzyme.
- Excretion: Mostly via the kidneys.
Because fentanyl is highly lipid-soluble, it crosses the blood-brain barrier nearly instantly, which explains 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 danger of substantial adverse effects, especially associating with the breathing and cardiovascular systems.
Typical Side Effects:
- Respiratory Depression: The most severe danger; it minimizes the drive to breathe.
- Bradycardia: A sluggish heart rate.
- Hypotension: Low blood pressure.
- Muscle Rigidity: Specifically "wooden chest syndrome," where the chest wall becomes too stiff to aerate quickly (typically takes place with high-dose quick IV administration).
- Queasiness and Vomiting: Common in the post-operative stage.
- Pruritus: Itching, typically around the nose or upper body.
Contraindications and Cautions:
- Known hypersensitivity to fentanyl or other opioid agonists.
- Breathing anxiety in the lack 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 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 need to be taped in a Controlled Drugs Register, signed by 2 competent healthcare professionals (normally a medical professional and a nurse, or more nurses).
- Disposal: Any lost or unused portion of an ampoule should be experienced and ruined according to regional trust policy (usually 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, a lot of UK hospitals presently utilize generic variations made 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 usually offered in 2ml (100mcg) and 10ml (500mcg) ampoules.
3. Can Fentanyl injection be offered in the house?
No. Fentanyl citrate injection is nearly exclusively utilized in healthcare facility settings (theatre, ICU, A&E) due to the fact that of the danger of fast respiratory anxiety, which needs immediate access to oxygen and resuscitation devices.
4. How does Fentanyl compare to Morphine in strength?
Fentanyl is approximately 50 to 100 times more potent than morphine. This suggests 100 micrograms of fentanyl is approximately comparable to 10 milligrams of morphine.
5. What is Fentanyl Citrate UK for a Fentanyl overdose?
Naloxone (brand name Prenoxad or generic) is the basic opioid antagonist used to reverse the effects of fentanyl if respiratory anxiety occurs.
Summary
Fentanyl citrate stays one of the most essential medications in the UK's surgical and intensive care environments. While it may be described by the historic trademark name Sublimaze, it is primarily utilized in its generic form provided by makers such as Hameln, Wockhardt, and Martindale Pharma.
Its high potency and fast start make it an exceptional tool for managing acute pain and assisting in anaesthesia, but these same qualities demand the highest level of scientific tracking and regulatory oversight. Comprehending the brand names and the medicinal profile of this drug is important for safe practice and patient security within the NHS and the wider UK healthcare sector.
Disclaimer: This short article is for informative purposes just and does not make up medical suggestions. Health care professionals should constantly describe the British National Formulary (BNF) or their local Trust guidelines for dosing and administration procedures.
