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DVS-233 SR

Wyeth is now a wholly owned subsidiary of Pfizer · Phase 3 active Small molecule

DVS-233 SR is a sustained-release formulation of venlafaxine, a serotonin-norepinephrine reuptake inhibitor (SNRI) that increases synaptic levels of serotonin and norepinephrine by blocking their reuptake.

DVS-233 SR is a sustained-release formulation of venlafaxine, a serotonin-norepinephrine reuptake inhibitor (SNRI) that increases synaptic levels of serotonin and norepinephrine by blocking their reuptake. Used for Major depressive disorder, Generalized anxiety disorder, Social anxiety disorder.

At a glance

Generic nameDVS-233 SR
SponsorWyeth is now a wholly owned subsidiary of Pfizer
Drug classSerotonin-norepinephrine reuptake inhibitor (SNRI)
TargetSerotonin transporter (SERT), Norepinephrine transporter (NET)
ModalitySmall molecule
Therapeutic areaPsychiatry / Mental Health
PhasePhase 3

Mechanism of action

Venlafaxine works by inhibiting the reuptake of both serotonin and norepinephrine at the presynaptic neuron, thereby increasing their concentration in the synaptic cleft. The SR (sustained-release) formulation provides prolonged drug delivery, allowing for once-daily dosing and more stable plasma concentrations compared to immediate-release formulations. This mechanism is thought to restore neurotransmitter balance in mood disorders.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results