Ipsapirone  (Synonyms: TVX Q 7821 free base)

Ipsapirone (TVX Q 7821) is an anxiolytic compound and a 5-HT_1A receptor partial agonist. Ipsapirone (TVX Q 7821) also exhibits 5-HT_1A receptor antagonistic effect, and only at high doses it can also produce an inhibitory effect on 5-HT₂ and the α₁-adrenergic function^[1][2].

Ipsapirone inhibits induced by 8-OH-DPAT and 5-methoxydimethyltryptamine (agonists of 5-HT1A receptors) behavioural effects (flat body posture and forepaw treading) in normal and reserpinized rats^[1].
Ipsapirone (2.5-80 mg/kg), given alone to rats induces a slight flattening of body posture (~ 1 point at the highest dose) and a mild hind limb abduction observed at doses 2.5-80 mg/kg. Ipsapirone given alone at low doses (2.5-10 mg/kg i.p.) does not significantly change the body temperature in rats and mice, but decreased it in both those species at high doses (35 mg/kg i.p.) by ca. 2-2.5℃^[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

401.48

Solid

C₁₉H₂₃N₅O₃S

95847-70-4

O=C(C1=C2C=CC=C1)N(CCCCN3CCN(C4=NC=CC=N4)CC3)S2(=O)=O

Room temperature in continental US; may vary elsewhere.

• [1]. J Maj, et al. Central action of ipsapirone, a new anxiolytic drug, on serotoninergic, noradrenergic and dopaminergic functions. J Neural Transm. 1987;70(1-2):1-17.  [Content Brief]

  [2]. Stephen M. Stahl, et al. Effectiveness of ipsapirone, a 5-HT-1A partial agonist, in major depressive disorder: support for the role of 5-HT-1A receptors in the mechanism of action of serotonergic antidepressants. Int J Neuropsychopharmacol. 1998 Jul;1(1):  [Content Brief]