paramethadione

Trade name: Paradione

Small moleculeapproved

Approved

Jun 15, 1949

Paramethadione is an anticonvulsant in the oxazolidinedione class developed by the Abbott Laboratories, approved by the Food and Drug Administration in 1949 for the treatment of absence seizures, also called partial seizures. Paramethadione acts to reduce T-type calcium currents in thalamic neurons which has been proposed to underlie the 3-Hz spike-and-wave discharge seen on electroencephalogram (EEG) during absence seizures. — NCATS

Clinical trial activity

0 trials · 0 clinical orgs · 2 marketing orgs

Phase 1
0
Phase 2
0
Phase 3
0
Phase 4
0

Timeline

1940s

  1. Jun 15, 1949

    Earliest FDA Approval

  2. Jun 15, 1949

    AbbVie — NDA Secondary Org

Indications

Mechanism of action

Approval history

  • approvedJun 15, 1949

Chemistry & pharmacology

Loading structure…

SMILES

CCC1(C)OC(=O)N(C)C1=O
Mol. weight
157.1671 g/mol
Lipinski Ro5
Pass
Rule of 3
Yes
Chirality
Racemic Mixture
Inorganic
No
Polymer
No
Delivery
Oral
Availability
Discontinued

Oral

Yes

Parenteral

No

Topical

No

Sources

Also known as

  • 5-ethyl-3,5-dimethyloxazolinedione
  • isoethadione
  • isoethadione
  • paradione
  • paradione
  • paradione
  • paradione
  • parametadiona
  • parametadiona
  • parametadione
  • parametadione
  • parametadione
  • paramethadione
  • paramethadione
  • paramethadione
  • paramethadione
  • paramethadione
  • paramethadione
  • paramethadione
  • paramethadione
  • paramethadione
  • paramethadione
  • paramethadione
  • paramethadionum
  • paramethadionum

Organizations

Marketing (2)

OrganizationOrg typeRelationshipDate
AbbVieFor profitNDA2Jun 15, 1949
AbbottFor profitNDA