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Fentanyl Citrate Injection in the UK: A Guide to Brand Names, Uses, and Clinical Overview
Fentanyl citrate is a powerful synthetic opioid analgesic, widely recognized in scientific medicine for its fast start and short period of action. Within the United Kingdom's health care system, fentanyl plays a vital role in perioperative care, intensive care, and the management of severe, serious discomfort. Since of its effectiveness-- approximated to be 50 to 100 times that of morphine-- its administration by means of injection is strictly managed and normally reserved for medical facility settings.
For health care specialists, students, or clients looking for to comprehend the pharmacological landscape in the UK, determining the readily available brand names and producers of fentanyl citrate injection is vital. This article supplies a detailed summary of the brand, medical signs, and regulative 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 nerve system. When administered via intravenous (IV) or intramuscular (IM) injection, it offers rapid 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 main appeal in surgical settings is its capability to offer intense pain relief while keeping hemodynamic stability, making it a favored option for cardiac surgeries and for patients with delicate cardiovascular systems.
Fentanyl Citrate Injection Brand Names and Manufacturers in the UK
In the UK market, lots of pharmaceutical items are prescribed by their generic name (Fentanyl) instead of a brand. Nevertheless, several makers supply the NHS and personal medical facilities with specific formulas. Historically, the most well-known brand related to fentanyl citrate was Sublimaze, initially developed by Janssen Pharmaceutica. While Fentanyl Patches UK is still used worldwide and informally in some UK theatres, most of the supply in the UK is now supplied by generic manufacturing specialists.
Table 1: Common Manufacturers and Product Details in the UK
MakerItem DescriptionCommon StrengthsHameln PharmaFentanyl Citrate Injection BP50 micrograms/ml (2ml, 10ml ampoules)Wockhardt UKFentanyl Citrate Injection50 micrograms/ml (2ml, 10ml ampoules)Martindale PharmaFentanyl Citrate50 micrograms/ml (2ml, 10ml, 20ml ampoules)Janssen-CilagSublimaze (Historical Brand)50 micrograms/mlPirimal Critical CareFentanyl Citrate Injection50 micrograms/mlWhile the brand name "Sublimaze" may 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 item.
Medical Indications for Injection
Fentanyl citrate injection is used throughout different departments, from the Emergency Department (ED) to the Operating Theatre. Its usage is normally divided into three categories:
1. Anaesthesia
Fentanyl is a foundation of modern-day anaesthesia. It is utilized as an analgesic supplement throughout the induction and maintenance of general anaesthesia. It assists blunt the body's physiological "stress action" to intubation and surgical incision.
2. Post-operative Recovery
In the Recovery Room (PACU), fentanyl may be administered in little, titrated boluses to handle 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 offer continuous analgesia for clients who are mechanically aerated. Its short half-life permits for more foreseeable "wake-up" tests compared to drugs like morphine.
Table 2: Clinical Application Summary
ApplicationFunction of FentanylPre-medicationTo supply sedation and analgesia before relocating to theatre.InductionTo comply with induction agents (like Propofol) for a smooth shift to unconsciousness.UpkeepTo manage the surgical pain stimulus throughout the procedure.Analgesic SupplementUtilized in local anaesthesia (like epidurals) to boost discomfort 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 reaction 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 extremely titratable).
- Metabolic process: Primarily in the liver through the CYP3A4 enzyme.
- Excretion: Mostly via the kidneys.
Due to the fact that fentanyl is highly lipid-soluble, it crosses the blood-brain barrier almost instantly, which discusses why the analgesic result is felt a lot faster than with morphine or oxycodone.
Safety and Side Effects
Similar to all powerful opioids, fentanyl citrate carries a threat of considerable negative effects, especially relating to the breathing and cardiovascular systems.
Typical Side Effects:
- Respiratory Depression: The most major risk; 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 aerate easily (usually happens with high-dose rapid IV administration).
- Queasiness and Vomiting: Common in the post-operative phase.
- Pruritus: Itching, often around the nose or upper body.
Contraindications and Cautions:
- Known hypersensitivity to fentanyl or other opioid agonists.
- Respiratory 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 prevent diversion and abuse.
- Storage: It must be kept in a locked "Controlled Drugs" (CD) cupboard that meets the British Standard for security.
- Record Keeping: Every dosage administered should be taped in a Controlled Drugs Register, signed by 2 competent healthcare experts (typically a doctor and a nurse, or 2 nurses).
- Disposal: Any wasted or unused part of an ampoule must be witnessed and destroyed according to regional trust policy (generally using a denaturing package).
FAQ: Fentanyl Citrate Injection in the UK
1. Is Sublimaze still available in the UK?
While the brand Sublimaze is the "innovator" item, a lot of UK medical facilities currently 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 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 offered in the house?
No. Fentanyl citrate injection is almost specifically used in medical facility settings (theatre, ICU, A&E) due to the fact that of the danger of fast respiratory anxiety, which requires instant access to oxygen and resuscitation equipment.
4. How does Fentanyl Patches UK compare to Morphine in strength?
Fentanyl is around 50 to 100 times more powerful than morphine. This means 100 micrograms of fentanyl is roughly comparable to 10 milligrams of morphine.
5. What is the remedy for a Fentanyl overdose?
Naloxone (brand name Prenoxad or generic) is the standard opioid villain used to reverse the impacts of fentanyl if respiratory depression occurs.
Summary
Fentanyl citrate stays among the most important medications in the UK's surgical and extensive care environments. While it may be referred to by the historic brand Sublimaze, it is mainly utilized in its generic type provided by manufacturers such as Hameln, Wockhardt, and Martindale Pharma.
Its high strength and quick start make it an unequaled tool for managing severe pain and assisting in anaesthesia, but these exact same qualities require the highest level of scientific tracking and regulatory oversight. Understanding the brand names and the medicinal profile of this drug is important for safe practice and patient security within the NHS and the broader UK healthcare sector.
Disclaimer: This short article is for informative purposes only and does not make up medical advice. Health care experts need to always refer to the British National Formulary (BNF) or their local Trust standards for dosing and administration procedures.
