Thiopen Injection 500 mg/vial contains Thiopental Sodium, a rapid-acting barbiturate primarily used for induction of general anesthesia and for short-term sedation in surgical procedures. It belongs to the class of ultra-short-acting barbiturates and produces a quick onset of unconsciousness, making it ideal for induction prior to inhalational anesthesia or short surgical interventions.

Thiopental Sodium acts on the central nervous system by enhancing the activity of gamma-aminobutyric acid (GABA), the main inhibitory neurotransmitter, leading to sedation, hypnosis, and decreased neuronal excitability.

রেজিস্টার্ড চিকিৎসকের পরামর্শ অনুযায়ী ঔষধ সেবন করুন

Indications

Thiopen Injection is indicated for:

• Induction of general anesthesia before surgery
• Short-term sedation in intensive care settings
• Control of convulsive status epilepticus when other treatments are ineffective
• Emergency management of increased intracranial pressure under strict monitoring

Mechanism of Action

Thiopental Sodium works by:

• Potentiating GABA-A receptor activity in the brain
• Increasing chloride ion influx into neurons
• Depressing central nervous system activity, leading to rapid sedation or anesthesia

Its ultra-short action allows precise control over induction and recovery during procedures.

Dosage and Administration

• Administered intravenously under strict medical supervision.
• The typical adult dose for anesthesia induction is 3–5 mg/kg, adjusted according to patient response, age, and clinical condition.
• Pediatric and geriatric doses should be calculated carefully to avoid overdose.
• Continuous monitoring of vital signs, including blood pressure, heart rate, and oxygen saturation, is mandatory during administration.
• Use caution in patients with cardiovascular or respiratory compromise.

Benefits

• Rapid onset of anesthesia (within seconds)
• Short duration of action allows quick recovery
• Effective for emergency procedures requiring immediate sedation
• Useful in controlling convulsive emergencies when standard therapy fails
• Provides predictable and controllable sedation under monitored conditions

Side Effects

Common side effects may include:

• Respiratory depression
• Hypotension
• Drowsiness or prolonged sedation
• Nausea or vomiting

Serious but rare side effects:

• Severe cardiovascular collapse
• Allergic reactions, including anaphylaxis
• Laryngospasm or airway obstruction
• Prolonged respiratory depression

Immediate medical attention and resuscitation equipment must be available during use.

Precautions and Warnings

• Only trained medical personnel should administer Thiopen Injection.
• Continuous monitoring of cardiovascular and respiratory function is essential.
• Use with caution in patients with heart disease, liver or kidney impairment, or chronic respiratory conditions.
• Avoid in patients with known hypersensitivity to barbiturates.
• Not suitable for long-term sedation due to risk of accumulation and prolonged respiratory depression.
• Pregnancy and breastfeeding use only under specialist supervision.

রেজিস্টার্ড চিকিৎসকের পরামর্শ অনুযায়ী ঔষধ সেবন করুন

Drug Interactions

Thiopen Injection may interact with:

• Other central nervous system depressants (e.g., opioids, benzodiazepines, alcohol)
• Antihypertensive medications (may enhance hypotensive effects)
• Enzyme-inducing drugs (may alter metabolism of thiopental)

Always inform your healthcare provider of all medications and supplements being used.

Storage

• Store below 25°C in a cool, dry place
• Protect from light
• Keep the vial tightly closed
• Keep out of reach of children
• Use immediately after reconstitution and discard any unused portion.