Fentanyl Citrate Injection in the UK: A Guide to Brand Names, Uses, and Clinical Overview
Fentanyl citrate is a powerful synthetic opioid analgesic, extensively recognized in clinical medicine for its rapid beginning and brief period of action. Within the United Kingdom's healthcare system, fentanyl plays a critical role in perioperative care, extensive care, and the management of acute, serious pain. Since of its strength-- estimated to be 50 to 100 times that of morphine-- its administration by means of injection is strictly controlled and typically reserved for healthcare facility settings.
For healthcare professionals, students, or patients looking for to comprehend the pharmacological landscape in the UK, identifying the readily available trademark name and manufacturers of fentanyl citrate injection is essential. This article supplies a detailed introduction of the brand name names, medical indications, and regulatory status of fentanyl citrate injections in the United Kingdom.
What is Fentanyl Citrate?
Fentanyl citrate is a phenylpiperidine derivative that acts as a powerful agonist at the μ-opioid (mu-opioid) receptors in the central anxious system. When administered via intravenous (IV) or intramuscular (IM) injection, it offers quick analgesia. In the UK, it is categorized 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 intense pain relief while keeping hemodynamic stability, making it a preferred choice for cardiac 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 recommended by their generic name (Fentanyl) rather than a trademark name. Nevertheless, numerous manufacturers supply the NHS and personal medical facilities with specific solutions. Historically, the most well-known brand name associated with fentanyl citrate was Sublimaze, originally developed by Janssen Pharmaceutica. While the name Sublimaze is still utilized worldwide and informally in some UK theatres, the bulk of the supply in the UK is now supplied by generic manufacturing specialists.
Table 1: Common Manufacturers and Product Details in the UK
| Producer | 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 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 original branded product.
Scientific Indications for Injection
Fentanyl citrate injection is made use of throughout different departments, from the Emergency Department (ED) to the Operating Theatre. Its usage is generally divided into 3 classifications:
1. Anaesthesia
Fentanyl is a cornerstone of contemporary anaesthesia. It is used as an analgesic supplement throughout the induction and upkeep of general anaesthesia. It helps blunt the body's physiological "tension response" to intubation and surgical cut.
2. Post-operative Recovery
In the Recovery Room (PACU), fentanyl may be administered in little, titrated boluses to manage immediate 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 used as an infusion to supply constant analgesia for clients who are mechanically aerated. Its brief half-life enables for more foreseeable "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 transition to unconsciousness. |
| Maintenance | To handle the surgical pain stimulus during the treatment. |
| Analgesic Supplement | Used in regional anaesthesia (like epidurals) to boost discomfort relief. |
Mechanism of Action and Pharmacokinetics
Fentanyl works by binding to mu-opioid receptors. This binding prevents ascending pain pathways, modifying the understanding of and action to pain. It also increases the pain threshold.
- Start of Action: 1-- 2 minutes (Intravenous).
- Peak Effect: 3-- 5 minutes.
- Period: 30-- 60 minutes (making it extremely titratable).
- Metabolism: Primarily in the liver by means of the CYP3A4 enzyme.
- Excretion: Mostly by means of the kidneys.
Since 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.
Safety and Side Effects
Similar to all powerful opioids, fentanyl citrate brings a threat of substantial adverse effects, especially associating with the respiratory and cardiovascular systems.
Common Side Effects:
- Respiratory Depression: The most serious threat; it reduces the drive to breathe.
- Bradycardia: A slow heart rate.
- Hypotension: Low blood pressure.
- Muscle Rigidity: Specifically "wood chest syndrome," where the chest wall ends up being too stiff to aerate easily (usually accompanies high-dose fast IV administration).
- Queasiness and Vomiting: Common in the post-operative phase.
- Pruritus: Itching, typically around the nose or torso.
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).
Guideline and Storage in the UK
In the United Kingdom, fentanyl citrate is strictly regulated 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 dosage administered must be tape-recorded in a Controlled Drugs Register, signed by two qualified health care specialists (usually a doctor and a nurse, or 2 nurses).
- Disposal: Any lost or unused part of an ampoule need to be experienced and destroyed according to local trust policy (normally utilizing a denaturing kit).
FAQ: Fentanyl Citrate Injection in the UK
1. Is Sublimaze still readily available in the UK?
While the brand Sublimaze is the "innovator" product, most UK hospitals presently utilize generic variations 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). It is typically readily available in 2ml (100mcg) and 10ml (500mcg) ampoules.
3. Can Fentanyl injection be offered in the house?
No. Fentanyl citrate injection is nearly solely used in medical facility settings (theatre, ICU, A&E) due to the fact that of the threat of quick breathing depression, which requires immediate 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. Fentanyl Nasal Spray For Sale UK means 100 micrograms of fentanyl is roughly comparable to 10 milligrams of morphine.
5. What is the antidote for a Fentanyl overdose?
Naloxone (trademark name Prenoxad or generic) is the basic opioid antagonist used to reverse the effects of fentanyl if respiratory anxiety takes place.
Summary
Fentanyl citrate remains one of the most essential medications in the UK's surgical and intensive care environments. While it might be referred to by the historical brand Sublimaze, it is mostly utilized in its generic kind provided by makers such as Hameln, Wockhardt, and Martindale Pharma.
Its high potency and quick onset make it an exceptional tool for managing sharp pain and helping with anaesthesia, but these same qualities demand the greatest level of clinical tracking and regulatory oversight. Comprehending the brands and the medicinal profile of this drug is vital for safe practice and patient security within the NHS and the larger UK health care sector.
Disclaimer: This article is for educational purposes only and does not constitute medical recommendations. Healthcare specialists need to always refer to the British National Formulary (BNF) or their local Trust standards for dosing and administration procedures.
