Understanding Fentanyl Citrate Injection: Brand Names and Clinical Use in the UK
In the landscape of contemporary discomfort management and anesthesia, couple of medications are as powerful or as medically significant as fentanyl citrate. As a synthetic opioid analgesic, it plays a crucial function in surgical settings and acute pain management across the United Kingdom. Offered its high effectiveness-- approximated to be between 50 and 100 times more effective than morphine-- comprehending its available kinds, brand names, and regulative status is essential for health care experts and notified clients alike.
This article supplies a comprehensive summary of fentanyl citrate injection within the UK health care system, detailing the brand readily available, its restorative signs, and the strict safety protocols governing its usage.
What is Fentanyl Citrate Injection?
Fentanyl citrate is a rapid-acting, short-duration opioid agonist that interacts primarily with the μ-opioid receptors in the central nerve system. When administered by means of injection (either intravenously or intramuscularly), it offers profound analgesia and sedation.
Unlike numerous naturally obtained opiates, fentanyl is extremely lipophilic (fat-soluble), which allows it to cross the blood-brain barrier rapidly. This leads to a quick start of action-- often within one to two minutes when administered intravenously-- making it a perfect option for intense surgeries and emergency interventions.
The Significance of the "Citrate" Form
The "citrate" suffix describes the salt kind of the drug. Fentanyl in its base form is not easily soluble in water. By responding it with citric acid to form fentanyl citrate, pharmaceutical producers create a steady, water-soluble service ideal for parenteral (injectable) administration.
Trademark Name and Manufacturers in the UK
In the United Kingdom, fentanyl citrate injection is readily available both as an exclusive brand and as generic formulas. While the drug itself stays the exact same, the branding often depends upon the specific pharmaceutical company supplying the NHS (National Health Service) or personal healthcare facilities.
1. Sublimaze
Sublimaze is possibly the most historically acknowledged brand name for fentanyl citrate injection. Originally established by medicstoregb.uk , it became the gold requirement for injectable fentanyl in medical settings. While the name "Sublimaze" is still widely cited in medical literature, many UK health centers now mostly stock generic versions due to cost-effectiveness.
2. Generic Fentanyl Citrate
The bulk of fentanyl used in the UK is labeled generically as "Fentanyl Citrate 50 micrograms/ml option for injection." A number of crucial pharmaceutical business are certified to distribute these generic versions in the UK.
Table 1: Common Suppliers and Brand Names in the UK
| Manufacturer/ Brand Name | Kind | 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 |
Clinical Indications for Injection
Fentanyl citrate injection is not a basic ward medication for moderate pain; its use is strictly booked for particular medical environments, such as operating theatres, intensive care systems (ICU), and emergency departments.
1. Anesthesia and Surgical Support
- Pre-medication: Given quickly before surgical treatment to cause sedation and ease anxiety.
- Analgesic Adjunct: Used alongside unstable visual appeals (gases) or other intravenous agents to keep a "balanced anesthesia" state.
- Induction: Often used as part of the rapid series induction to blunt the cardiovascular action to intubation.
2. Post-Operative Pain Management
For patients recuperating from significant surgical treatment, little, titrated doses of fentanyl injection may be utilized in the recovery space (PACU) to manage severe "breakthrough" discomfort that has not reacted to other medications.
3. Intensive Care Sedation
In the ICU, fentanyl is regularly administered through continuous infusion to offer analgesia for patients who are mechanically aerated. Its short half-life enables clinicians to carry out "sedation breaks" to assess the patient's neurological status more effectively than with longer-acting opioids.
4. Palliative Care
In customized terminal care settings, fentanyl injections might be used to manage severe discomfort crises, although other paths (such as subcutaneous spots or sublingual tablets) are more typical for chronic upkeep.
Dose and Administration Guidelines
The administration of fentanyl citrate injection need to just be carried out by trained healthcare specialists (typically anesthetists or specialized nurses) who have access to resuscitative devices.
Basic Strengths
The basic concentration in the UK is 50 micrograms per milliliter (50mcg/ml). It is offered in different ampoule sizes, usually 2ml (including 100mcg) and 10ml (consisting of 500mcg).
Paths of Administration
- Intravenous (IV): The most typical path for an immediate impact.
- Intramuscular (IM): Used when IV gain access to is not readily available, though the onset is slower.
- Epidural/Intrathecal: Fentanyl is often injected into the spine space to supply local anesthesia, typically integrated with a regional anesthetic like bupivacaine.
Security, Contraindications, and Side Effects
Due to its severe effectiveness, fentanyl citrate brings a significant risk profile. The primary concern is breathing anxiety, where the patient's drive to breathe is lessened.
Common Side Effects
- Queasiness and vomiting.
- Dizziness and drowsiness.
- Bradycardia (slow heart rate).
- Hypotension (low blood pressure).
- Urinary retention.
Major Risks
- Chest Wall Rigidity: Rapid IV infusion of high-dose fentanyl can trigger "Stiff Person Syndrome" or "Woody Chest," where the skeletal muscles of the chest and abdominal area become stiff, making ventilation difficult without making use of muscle relaxants.
- Addiction and Misuse: Like all opioids, fentanyl has a high potential for reliance.
- Cross-Reactivity: It should be used with severe care in patients who have actually taken Monoamine Oxidase Inhibitors (MAOIs) within the previous 14 days, as this can activate a hypertensive crisis or serotonin syndrome.
Legal Status and Controls in the UK
In the United Kingdom, fentanyl is classified 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 strict requirements on:
- Storage: Must be kept in a double-locked "CD" (Controlled Drug) cabinet.
- Record Keeping: Every milligram must be accounted for in a Controlled Drugs Register.
- Prescribing: Prescriptions should fulfill particular legal requirements concerning the total amount and formula.
- Destruction: Any unused parts of an ampoule need to be experienced and destroyed according to medical facility procedures.
FREQUENTLY ASKED QUESTION: Fentanyl Citrate Injection in the UK
Q1: Is Sublimaze the very same as Fentanyl?
Yes. Sublimaze is simply the brand name for the generic drug fentanyl citrate. In the majority of UK medical settings, the terms are utilized interchangeably, though the generic name is chosen in modern-day prescribing to avoid mistakes.
Q2: How quick does an injection of fentanyl work?
When offered intravenously, its effects can be felt practically right away, peaking within 3 to 5 minutes. Its analgesic period is fairly brief, generally enduring 30 to 60 minutes.
Q3: Can fentanyl injection be used in the house?
No. Fentanyl citrate injection is strictly an "in-hospital" medication. For home use (e.g., in palliative care), fentanyl is usually prescribed as transdermal patches (e.g., Duragesic or Matrifen) or as lozenges/nasal sprays for advancement pain.
Q4: What occurs if a client is given excessive fentanyl?
An overdose causes severe breathing anxiety, identify pupils, and loss of consciousness. The basic "antidote" used in the UK is Naloxone, a competitive opioid antagonist that reverses the results of fentanyl.
Q5: Is fentanyl citrate injection stronger than morphine?
Yes, considerably. Fentanyl is approximately 80 to 100 times more potent than morphine by weight. This implies 100 micrograms (0.1 mg) of fentanyl is roughly equivalent to 10mg of morphine.
Fentanyl citrate stays a foundation of the UK's acute healthcare system. Whether branded as Sublimaze or provided as a generic solution from business like Accord or Hameln, its role in making it possible for intricate surgical treatments and handling serious pain is essential. Nevertheless, its strength necessitates a high level of caution, strict legal controls, and expert administration. By comprehending the brands and the pharmacological profile of this powerful opioid, doctor can guarantee it is utilized securely and efficiently to improve client outcomes.
Disclaimer: This short article is for educational functions just and does not make up medical recommendations. For scientific guidance, please refer to the British National Formulary (BNF) or seek advice from a qualified medical professional.
