Thiopental

Thiopental

Mechanism of action

Allosteric modulator and agonist of GABA receptors causing global depression of CNS resulting in sedative, hypnotic and antiseizure effects.

Indications and dose

Side-effects

Nausea

Hypotension

Headache

Drowsiness

Skin rash

Confusion and hallucination

Respiratory depression

Agranulocytosis

Stevens-Johnson syndrome

Liver injury

Megaloblastic anaemia

Barbiturate dependence

Contraindications

Cardiovascular instability and shock

Status asthmaticus

Pharmacokinetics

Onset of action: 30-45 seconds

Duration of action: 5-10 minutes

Bioavailability: N/A

Metabolism: Hepatic

Half-life of elimination: 5-26 hours

Excretion: Urine

Medicinal forms

Solution for injection

1 vial = 0.5 g or 1 g

References

  1. https://en.wikipedia.org/wiki/Barbiturate 
  2. https://bnf.nice.org.uk/drugs/thiopental-sodium/
  3. https://www.uptodate.com/contents/thiopental-international-drug-information-concise?search=thiopental&source=panel_search_result&selectedTitle=1~50&usage_type=panel&kp_tab=drug_international&display_rank=1 
  4. https://en.wikipedia.org/wiki/Sodium_thiopental