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Understanding Fentanyl Citrate Injection: Brand Names and Clinical Use in the UK
In the landscape of contemporary discomfort management and anesthesia, few medications are as potent or as clinically significant as fentanyl citrate. As a synthetic opioid analgesic, it plays an important role in surgical settings and acute discomfort management throughout the United Kingdom. Given its high effectiveness— approximated to be between 50 and 100 times more powerful than morphine— comprehending its readily available forms, brand, and regulatory status is vital for health care professionals and informed patients alike.
This post provides a thorough overview of fentanyl citrate injection within the UK healthcare system, detailing the trademark name offered, its restorative signs, and the rigorous security procedures governing its usage.
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What is Fentanyl Citrate Injection?
Fentanyl citrate is a rapid-acting, short-duration opioid agonist that communicates mainly with the μ-opioid receptors in the main anxious system. When administered through injection (either intravenously or intramuscularly), it provides profound analgesia and sedation.
Unlike many naturally derived opiates, fentanyl is extremely lipophilic (fat-soluble), which allows it to cross the blood-brain barrier quickly. This results in a fast beginning of action— often within one to two minutes when administered intravenously— making it an ideal choice for severe surgical treatments and emergency situation interventions.
The Significance of the “Citrate” Form
The “citrate” suffix describes the salt type of the drug. Fentanyl in its base kind is not easily soluble in water. By responding it with citric acid to form fentanyl citrate, pharmaceutical makers create a steady, water-soluble solution ideal for parenteral (injectable) administration.
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Trademark Name and Manufacturers in the UK
In the United Kingdom, fentanyl citrate injection is available both as a proprietary brand name and as generic formulas. While the drug itself remains the exact same, the branding frequently depends on the particular pharmaceutical business providing the NHS (National Health Service) or personal healthcare facilities.
1. Sublimaze
Sublimaze is perhaps the most historically recognized brand name for fentanyl citrate injection. Originally developed by Janssen Pharmaceutica, it became the gold requirement for injectable fentanyl in clinical settings. While the name “Sublimaze” is still extensively pointed out in medical literature, many UK hospitals now mostly stock generic versions due to cost-effectiveness.
2. Generic Fentanyl Citrate
Most of fentanyl utilized in the UK is labeled generically as “Fentanyl Citrate 50 micrograms/ml option for injection.” Several key pharmaceutical companies are licensed to disperse these generic variations in the UK.
Table 1: Common Suppliers and Brand Names in the UK
Manufacturer/ Brand Name
Type
Common 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
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Clinical Indications for Injection
Fentanyl citrate injection is not a basic ward medication for mild discomfort; its usage is strictly reserved for specific scientific environments, such as operating theatres, extensive care systems (ICU), and emergency departments.
1. Anesthesia and Surgical Support
- Pre-medication: Given soon before surgery to induce sedation and eliminate anxiety.
- Analgesic Adjunct: Used alongside unstable aesthetics (gases) or other intravenous representatives to preserve a “balanced anesthesia” state.
- Induction: Often used as part of the fast sequence induction to blunt the cardiovascular action to intubation.
2. Post-Operative Pain Management
For patients recovering from significant surgery, little, titrated doses of fentanyl injection may be used in the healing room (PACU) to manage intense “advancement” discomfort that has actually not reacted to other medications.
3. Intensive Care Sedation
In the ICU, fentanyl is often administered via continuous infusion to offer analgesia for clients who are mechanically aerated. Its brief half-life enables clinicians to perform “sedation breaks” to assess the client's neurological status better than with longer-acting opioids.
4. Palliative Care
In specific terminal care settings, fentanyl injections might be used to handle extreme pain crises, although other paths (such as subcutaneous spots or sublingual tablets) are more typical for chronic maintenance.
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Dose and Administration Guidelines
The administration of fentanyl citrate injection must just be carried out by skilled healthcare specialists (normally anesthetists or specialized nurses) who have access to resuscitative equipment.
Standard Strengths
The standard concentration in the UK is 50 micrograms per milliliter (50mcg/ml). read more is readily available in numerous ampoule sizes, normally 2ml (consisting of 100mcg) and 10ml (including 500mcg).
Routes of Administration
- Intravenous (IV): The most common path for an immediate effect.
- Intramuscular (IM): Used when IV access is not readily available, though the start is slower.
Epidural/Intrathecal: Fentanyl is often injected into the spine space to offer regional anesthesia, typically integrated with a local anesthetic like bupivacaine.
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Security, Contraindications, and Side Effects
Due to its extreme strength, fentanyl citrate carries a substantial threat profile. The primary issue is breathing anxiety, where the patient's drive to breathe is reduced.
Common Side Effects
- Queasiness and throwing up.
- Lightheadedness and sleepiness.
- Bradycardia (sluggish heart rate).
- Hypotension (low high blood pressure).
- Urinary retention.
Severe 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 abdomen become rigid, making ventilation difficult without making use of muscle relaxants.
- Addiction and Misuse: Like all opioids, fentanyl has a high potential for dependence.
- Cross-Reactivity: It should be used with severe care in clients who have taken Monoamine Oxidase Inhibitors (MAOIs) within the previous 14 days, as this can activate a hypertensive crisis or serotonin syndrome.
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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. In addition, under the Misuse of Drugs Regulations 2001, it is classified as a Schedule 2 Controlled Drug.
This classification enforces stringent requirements on:
- Storage: Must be kept in a double-locked “CD” (Controlled Drug) cabinet.
- Record Keeping: Every milligram needs to be accounted for in a Controlled Drugs Register.
- Recommending: Prescriptions need to meet particular legal requirements concerning the total amount and solution.
Destruction: Any unused portions of an ampoule should be seen and destroyed according to hospital procedures.
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FAQ: Fentanyl Citrate Injection in the UK
Q1: Is Sublimaze the same as Fentanyl?
Yes. Sublimaze is merely the brand name for the generic drug fentanyl citrate. In many UK scientific settings, the terms are used interchangeably, though the generic name is preferred in contemporary prescribing to avoid mistakes.
Q2: How quick does an injection of fentanyl work?
When offered intravenously, its effects can be felt practically immediately, peaking within 3 to 5 minutes. Its analgesic period is reasonably short, normally 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 usage (e.g., in palliative care), fentanyl is typically prescribed as transdermal spots (e.g., Duragesic or Matrifen) or as lozenges/nasal sprays for advancement pain.
Q4: What happens if a patient is provided too much fentanyl?
An overdose leads to extreme breathing depression, determine students, and loss of awareness. The basic “antidote” utilized in the UK is Naloxone, a competitive opioid antagonist that reverses the impacts of fentanyl.
Q5: Is fentanyl citrate injection stronger than morphine?
Yes, significantly. Fentanyl is approximately 80 to 100 times more powerful than morphine by weight. This implies 100 micrograms (0.1 mg) of fentanyl is approximately equivalent to 10mg of morphine.
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Fentanyl citrate stays a cornerstone of the UK's severe treatment system. Whether branded as Sublimaze or offered as a generic solution from companies like Accord or Hameln, its role in allowing complex surgeries and managing serious pain is essential. Nevertheless, its strength necessitates a high level of caution, rigorous legal controls, and specialist administration. By comprehending the brands and the pharmacological profile of this effective opioid, healthcare providers can ensure it is used safely and effectively to enhance client outcomes.
Disclaimer: This article is for informative functions only and does not make up medical suggestions. For medical assistance, please refer to the British National Formulary (BNF) or consult a certified doctor.
