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 potent or as medically 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. Provided its high effectiveness-- approximated to be between 50 and 100 times more effective than morphine-- understanding its available types, brand name names, and regulatory status is vital for health care professionals and notified clients alike.
This short article provides a thorough overview of fentanyl citrate injection within the UK health care system, detailing the brand available, its healing indicators, and the strict safety procedures governing its use.
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 main nerve system. When administered by means of injection (either intravenously or intramuscularly), it supplies profound analgesia and sedation.
Unlike many naturally derived opiates, fentanyl is extremely lipophilic (fat-soluble), which allows it to cross the blood-brain barrier rapidly. This leads to a rapid start of action-- frequently within one to two minutes when administered intravenously-- making it a perfect 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 form is not easily soluble in water. By responding it with citric acid to form fentanyl citrate, pharmaceutical manufacturers produce a steady, water-soluble option suitable for parenteral (injectable) administration.
Brand and Manufacturers in the UK
In the United Kingdom, fentanyl citrate injection is offered both as a proprietary brand and as generic solutions. While the drug itself stays the exact same, the branding often depends upon the particular pharmaceutical company providing the NHS (National Health Service) or personal health centers.
1. Sublimaze
Sublimaze is perhaps the most historically recognized brand 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 mentioned in medical literature, numerous UK healthcare facilities now mostly stock generic versions due to cost-effectiveness.
2. Generic Fentanyl Citrate
The majority of fentanyl utilized in the UK is identified generically as "Fentanyl Citrate 50 micrograms/ml option for injection." Numerous crucial pharmaceutical business are accredited to distribute these generic variations in the UK.
Table 1: Common Suppliers and Brand Names in the UK
| Maker/ Brand Name | Type | Common Strengths | Common 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 |
Scientific Indications for Injection
Fentanyl citrate injection is not a basic ward medication for moderate discomfort; its usage is strictly scheduled for specific clinical environments, such as running theatres, intensive care units (ICU), and emergency departments.
1. Anesthesia and Surgical Support
- Pre-medication: Given shortly before surgery to cause sedation and ease stress and anxiety.
- Analgesic Adjunct: Used together with volatile aesthetic appeals (gases) or other intravenous agents to maintain a "well balanced anesthesia" state.
- Induction: Often utilized as part of the fast sequence induction to blunt the cardiovascular reaction to intubation.
2. Post-Operative Pain Management
For clients recuperating from major surgical treatment, small, titrated doses of fentanyl injection may be used in the healing room (PACU) to handle acute "advancement" discomfort that has actually not reacted to other medications.
3. Intensive Care Sedation
In the ICU, fentanyl is frequently administered by means of constant infusion to offer analgesia for clients who are mechanically ventilated. Its brief half-life allows clinicians to carry out "sedation breaks" to assess the patient's neurological status better than with longer-acting opioids.
4. Palliative Care
In customized terminal care settings, fentanyl injections might be used to manage extreme pain crises, although other paths (such as subcutaneous patches or sublingual tablets) are more typical for persistent maintenance.
Dose and Administration Guidelines
The administration of fentanyl citrate injection should only be performed by experienced healthcare specialists (generally anesthetists or specialized nurses) who have access to resuscitative devices.
Standard Strengths
The basic concentration in the UK is 50 micrograms per milliliter (50mcg/ml). It is available in various ampoule sizes, usually 2ml (including 100mcg) and 10ml (containing 500mcg).
Routes of Administration
- Intravenous (IV): The most typical path for an instant result.
- Intramuscular (IM): Used when IV access is not offered, though the onset is slower.
- Epidural/Intrathecal: Fentanyl is sometimes injected into the spine area to provide regional anesthesia, often integrated with an anesthetic like bupivacaine.
Security, Contraindications, and Side Effects
Due to its extreme strength, fentanyl citrate carries a considerable danger profile. The primary issue is respiratory depression, where the patient's drive to breathe is reduced.
Common Side Effects
- Nausea and throwing up.
- Lightheadedness and drowsiness.
- Bradycardia (sluggish heart rate).
- Hypotension (low high 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 end up being stiff, making ventilation impossible without making use of muscle relaxants.
- Dependency and Misuse: Like all opioids, fentanyl has a high potential for dependence.
- Cross-Reactivity: It must be utilized with severe caution in clients who have actually taken Monoamine Oxidase Inhibitors (MAOIs) within the previous 14 days, as this can set off 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. Moreover, under the Misuse of Drugs Regulations 2001, it is classified as a Schedule 2 Controlled Drug.
This classification imposes rigorous requirements on:
- Storage: Must be kept in a double-locked "CD" (Controlled Drug) cabinet.
- Record Keeping: Every milligram needs to be represented in a Controlled Drugs Register.
- Recommending: Prescriptions need to fulfill particular legal requirements regarding the overall quantity and solution.
- Damage: Any unused parts of an ampoule must be witnessed and destroyed according to hospital procedures.
FREQUENTLY ASKED QUESTION: Fentanyl Citrate Injection in the UK
Q1: Is Sublimaze the like Fentanyl?
Yes. Sublimaze is merely the trademark name for the generic drug fentanyl citrate. In many UK medical settings, the terms are used interchangeably, though the generic name is chosen in modern prescribing to prevent mistakes.
Q2: How quickly 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 duration is relatively short, generally enduring 30 to 60 minutes.
Q3: Can fentanyl injection be utilized in your home?
No. Fentanyl citrate injection is strictly an "in-hospital" medication. For home use (e.g., in palliative care), fentanyl is normally recommended as transdermal patches (e.g., Duragesic or Matrifen) or as lozenges/nasal sprays for breakthrough discomfort.
Q4: What takes place if a client is provided too much fentanyl?
An overdose causes extreme breathing anxiety, determine pupils, and loss of consciousness. The basic "antidote" used in the UK is Naloxone, a competitive opioid antagonist that reverses the effects of fentanyl.
Q5: Is fentanyl citrate injection more powerful than morphine?
Yes, significantly. Fentanyl is approximately 80 to 100 times more potent than morphine by weight. learn more implies 100 micrograms (0.1 mg) of fentanyl is approximately comparable to 10mg of morphine.
Fentanyl citrate stays a cornerstone of the UK's severe healthcare system. Whether branded as Sublimaze or offered as a generic solution from companies like Accord or Hameln, its role in allowing complex surgical treatments and managing extreme pain is indispensable. However, its strength requires a high level of alertness, rigorous legal controls, and specialist administration. By understanding the brands and the medicinal profile of this effective opioid, doctor can ensure it is utilized securely and successfully to enhance patient results.
Disclaimer: This article is for informational functions just and does not make up medical recommendations. For medical assistance, please refer to the British National Formulary (BNF) or seek advice from a competent medical specialist.
