Understanding Fentanyl Citrate Injection: Brand Names and Clinical Use in the UK
In the landscape of modern-day discomfort management and anesthesia, few medications are as powerful or as scientifically considerable as fentanyl citrate. As a synthetic opioid analgesic, it plays an essential role in surgical settings and acute discomfort management across the United Kingdom. Offered its high effectiveness-- estimated to be between 50 and 100 times more powerful than morphine-- understanding its offered types, trademark name, and regulatory status is essential for healthcare professionals and notified clients alike.
This article offers an extensive overview of fentanyl citrate injection within the UK health care system, detailing the brand readily available, its restorative indications, and the stringent safety protocols governing its usage.
What is Fentanyl Citrate Injection?
Fentanyl citrate is a rapid-acting, short-duration opioid agonist that interacts mainly with the μ-opioid receptors in the main worried system. When administered by means of injection (either intravenously or intramuscularly), it supplies extensive analgesia and sedation.
Unlike many naturally obtained opiates, fentanyl is highly lipophilic (fat-soluble), which permits it to cross the blood-brain barrier rapidly. This results in a rapid start of action-- typically within one to 2 minutes when administered intravenously-- making it an ideal choice for severe surgeries and emergency interventions.
The Significance of the "Citrate" Form
The "citrate" suffix describes the salt form of the drug. Fentanyl in its base form is not quickly soluble in water. By reacting it with citric acid to form fentanyl citrate, pharmaceutical producers produce a stable, water-soluble service appropriate for parenteral (injectable) administration.
Trademark Name and Manufacturers in the UK
In the United Kingdom, fentanyl citrate injection is available both as an exclusive brand name and as generic solutions. While the drug itself remains the very same, the branding frequently depends on the specific pharmaceutical business providing the NHS (National Health Service) or personal health centers.
1. Sublimaze
Sublimaze is perhaps the most traditionally recognized brand name for fentanyl citrate injection. Originally established by Janssen Pharmaceutica, it became the gold standard for injectable fentanyl in medical settings. While the name "Sublimaze" is still widely pointed out in medical literature, lots of UK medical facilities now mainly stock generic variations due to cost-effectiveness.
2. Generic Fentanyl Citrate
The majority of fentanyl utilized in the UK is labeled generically as "Fentanyl Citrate 50 micrograms/ml service for injection." Several essential pharmaceutical companies are accredited to disperse these generic versions in the UK.
Table 1: Common Suppliers and Brand Names in the UK
| Maker/ Brand Name | Form | Typical Strengths | Typical Pack Sizes |
|---|---|---|---|
| Sublimaze (Janssen-Cilag) | Solution for Injection | 50 mcg/ml | 2ml, 10ml ampoules |
| Accord Healthcare | Fentanyl Citrate (Generic) | 50 mcg/ml | 2ml, 10ml ampoules |
| Hameln Pharmaceuticals | Fentanyl Citrate (Generic) | 50 mcg/ml | 2ml, 10ml, 20ml ampoules |
| Pfizer (Hospira) | Fentanyl Citrate (Generic) | 50 mcg/ml | 2ml, 10ml ampoules |
| Wockhardt UK | Fentanyl Citrate (Generic) | 50 mcg/ml | 2ml, 10ml ampoules |
Medical Indications for Injection
Fentanyl citrate injection is not a standard ward medication for moderate pain; its use is strictly booked for specific medical environments, such as operating theatres, intensive care systems (ICU), and emergency situation departments.
1. Anesthesia and Surgical Support
- Pre-medication: Given quickly before surgical treatment to induce sedation and ease anxiety.
- Analgesic Adjunct: Used together with unpredictable aesthetic appeals (gases) or other intravenous representatives to preserve a "well balanced anesthesia" state.
- Induction: Often utilized as part of the quick series induction to blunt the cardiovascular reaction to intubation.
2. Post-Operative Pain Management
For clients recovering from significant surgical treatment, little, titrated doses of fentanyl injection may be utilized in the healing room (PACU) to handle intense "development" discomfort that has actually not reacted to other medications.
3. Intensive Care Sedation
In the ICU, fentanyl is regularly administered through constant infusion to offer analgesia for clients who are mechanically ventilated. Its brief half-life permits clinicians to perform "sedation breaks" to examine the patient's neurological status better than with longer-acting opioids.
4. Palliative Care
In specialized terminal care settings, fentanyl injections may be used to handle extreme discomfort crises, although other paths (such as subcutaneous spots or sublingual tablets) are more common for chronic maintenance.
Dose and Administration Guidelines
The administration of fentanyl citrate injection must only be performed by qualified health care professionals (usually anesthetists or specialized nurses) who have access to resuscitative equipment.
Basic Strengths
The basic concentration in the UK is 50 micrograms per milliliter (50mcg/ml). It is available in different ampoule sizes, generally 2ml (containing 100mcg) and 10ml (consisting of 500mcg).
Routes of Administration
- Intravenous (IV): The most common route for an immediate result.
- Intramuscular (IM): Used when IV access is not available, though the onset is slower.
- Epidural/Intrathecal: Fentanyl is in some cases injected into the spinal area to provide local anesthesia, frequently integrated with a local anesthetic like bupivacaine.
Safety, Contraindications, and Side Effects
Due to its extreme strength, fentanyl citrate brings a considerable threat profile. The main concern is respiratory anxiety, where the client's drive to breathe is lessened.
Typical Side Effects
- Nausea and throwing up.
- Lightheadedness and sleepiness.
- Bradycardia (slow heart rate).
- Hypotension (low blood pressure).
- Urinary retention.
Severe Risks
- Chest Wall Rigidity: Rapid IV infusion of high-dose fentanyl can cause "Stiff Person Syndrome" or "Woody Chest," where the skeletal muscles of the chest and abdomen end up being stiff, making ventilation difficult without the usage of muscle relaxants.
- Dependency and Misuse: Like all opioids, fentanyl has a high capacity for reliance.
- Cross-Reactivity: It needs to be used with severe caution in patients who have taken Monoamine Oxidase Inhibitors (MAOIs) within the previous 14 days, as this can trigger a hypertensive crisis or serotonin syndrome.
Legal Status and Controls in the UK
In the United Kingdom, fentanyl is categorized under the Misuse of Drugs Act 1971 as a Class A drug. Furthermore, under the Misuse of Drugs Regulations 2001, it is categorized as a Schedule 2 Controlled Drug.
This category enforces rigorous requirements on:
- Storage: Must be kept in a double-locked "CD" (Controlled Drug) cupboard.
- Record Keeping: Every milligram must be represented in a Controlled Drugs Register.
- Recommending: Prescriptions must satisfy specific legal requirements relating to the total amount and formulation.
- Damage: Any unused portions of an ampoule should be seen and damaged according to health center procedures.
FREQUENTLY ASKED QUESTION: Fentanyl Citrate Injection in the UK
Q1: Is Sublimaze the very same as Fentanyl?
Yes. Sublimaze is just the brand name for the generic drug fentanyl citrate. In a lot of UK clinical settings, the terms are utilized interchangeably, though the generic name is chosen in modern-day recommending to avoid errors.
Q2: How quick does an injection of fentanyl work?
When offered intravenously, its results can be felt nearly immediately, peaking within 3 to 5 minutes. Its analgesic duration is fairly brief, typically long lasting 30 to 60 minutes.
Q3: Can fentanyl injection be utilized in your home?
No. Medic Store GB is strictly an "in-hospital" medication. For home use (e.g., in palliative care), fentanyl is usually recommended as transdermal patches (e.g., Duragesic or Matrifen) or as lozenges/nasal sprays for advancement pain.
Q4: What takes place if a client is provided excessive fentanyl?
An overdose results in serious breathing depression, determine students, and loss of awareness. The standard "remedy" used in the UK is Naloxone, a competitive opioid antagonist that reverses the effects of fentanyl.
Q5: Is fentanyl citrate injection stronger than morphine?
Yes, substantially. Fentanyl is approximately 80 to 100 times more powerful than morphine by weight. This means 100 micrograms (0.1 mg) of fentanyl is approximately comparable to 10mg of morphine.
Fentanyl citrate remains a cornerstone of the UK's severe medical care system. Whether branded as Sublimaze or provided as a generic formulation from companies like Accord or Hameln, its role in allowing intricate surgical treatments and handling serious pain is essential. However, its strength requires a high level of watchfulness, stringent legal controls, and expert administration. By comprehending the brands and the pharmacological profile of this powerful opioid, doctor can guarantee it is utilized safely and efficiently to enhance patient outcomes.
Disclaimer: This post is for informational functions just and does not constitute medical suggestions. For scientific guidance, please refer to the British National Formulary (BNF) or speak with a qualified doctor.
