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Talbutal
Systematic (IUPAC) name
5-allyl-5-sec-butylpyrimidine-2,4,6(1 H,3H,5H)-trione
Identifiers
CAS number 115-44-6
ATC code N05CA07
PubChem 8275
Chemical data
Formula C 11H16N2O3  
Mol. mass 224.256 g/mol
Synonyms 5-(1-methylpropyl)-5-(2-propenyl)-2,4,6(1H,3H,5 H)-pyrimidinetrione
Pharmacokinetic data
Bioavailability  ?
Metabolism  ?
Half life  ?
Excretion  ?
Therapeutic considerations
Pregnancy cat.  ?
Legal status Schedule III (US)
Routes  ?
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Talbutal (Lotusate), also called 5-allyl-5-sec-butylbarbituric acid, is a barbiturate with a short to intermediate duration of action. It is a structural isomer of butalbital.

Description:
Talbutal, also called 5-allyl-5-sec-butylbarbituric acid, is a barbiturate with a short to intermediate duration of action. Talbutal is a schedule III drug in the U.S.

Pharmacology:
Talbutal is a short to intermediate-acting barbiturate. Barbiturates act as nonselective depressants of the central nervous system (CNS), capable of producing all levels of CNS mood alteration from excitation to mild sedation, hypnosis, and deep coma. In sufficiently high therapeutic doses, barbiturates induce anesthesia.

Mechanism of Action:
Talbutal binds at a distinct binding site associated with a Cl- ionopore at the GABAA receptor, increasing the duration of time for which the Cl- ionopore is open. The post-synaptic inhibitory effect of GABA in the thalamus is, therefore, prolonged.

Toxicity:
Symptoms of acute barbiturate poisoning include drowsiness, confusion, coma, respiratory depression, hypotension, and shock.








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