A brand name for venlafaxine, an antidepressant medication that belongs to the class of drugs called SNRIs (serotonin-norepinephrine reuptake inhibitors). It is used to treat depression, anxiety disorders, and panic disorders.
Coined by pharmaceutical company Wyeth (now Pfizer) in the 1990s. The name appears to combine 'effect' with a pharmaceutical suffix, suggesting efficacy and action, though the exact derivation is proprietary marketing creation.
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