Valparin
Brand names,
Valparin
Analogs
Valparin
Brand Names Mixture
Valparin
Chemical_Formula
C8H16O2
Valparin
RX_link
http://www.rxlist.com/cgi/generic2/depakene.htm
Valparin
fda sheet
Valparin
msds (material safety sheet)
Valparin
Synthesis Reference
Oberreit, Ber.29, 1998 (1896)
Valparin
Molecular Weight
144.211 g/mol
Valparin
Melting Point
120 - 130 oC
Valparin
H2O Solubility
Slightly soluble (1.3 mg/mL)
Valparin
State
Solid
Valparin
LogP
2.549
Valparin
Dosage Forms
Capsule (250 mg); Syrup (250 mg drug/5mL syrup)
Valparin
Indication
For use as sole and adjunctive therapy in the treatment of simple and complex absence seizures, and adjunctively in patients with multiple seizure types which include absence seizures.
Valparin
Pharmacology
Valproic Acid is an anticonvulsant and mood-stabilizing drug used primarily in the treatment of epilepsy and bipolar disorder. It is also used to treat migraine headaches and schizophrenia. In epileptics, valproic acid is used to control absence seizures, tonic-clonic seizures (grand mal), complex partial seizures, and the seizures associated with Lennox-Gastaut syndrome. Valproic Acid is believed to affect the function of the neurotransmitter GABA (as a GABA transaminase inhibitor) in the human brain. Valproic Acid dissociates to the valproate ion in the gastrointestinal tract. Valproic acid has also been shown to be an inhibitor of an enzyme called histone deacetylase 1 (HDAC1). HDAC1 is needed for HIV to remain in infected cells. A study published in August 2005 revealed that patients treated with valproic acid in addition to highly active antiretroviral therapy (HAART) showed a 75% reduction in latent HIV infection.
Valparin
Absorption
Rapid absorption from gastrointestinal tract.
Valparin
side effects and Toxicity
Oral, mouse: LD50 = 1098 mg/kg; Oral, rat: LD50 = 670 mg/kg. Symptoms of overdose may include coma, extreme drowsiness, and heart problems.
Valparin
Patient Information
Since valproate products may produce CNS depression, especially when combined with another CNS depressant (eg, alcohol), patients should be advised not to engage in hazardous activities, such as driving an automobile or operating dangerous machinery, until it is known that they do not become drowsy from the drug.
Valparin
Organisms Affected
Humans and other mammals