Venlafaxine
Also sold as Venlafaxine, Venlafaxine Hydrochloride, venlafaxine
Medicine summary · from official FDA labels · Oct 19, 2026
What it’s used for
Venlafaxine extended-release tablets are a selective serotonin and norepinephrine reuptake inhibitor (SNRI) indicated for: Major Depressive Disorder (MDD) ( 1. 1 ) Social Anxiety Disorder (SAD) ( 1.
How to take it
Venlafaxine extended-release tablets should be administered in a single dose with food either in the morning or in the evening at approximately the same time each day. Each tablet should be swallowed whole with fluid and not divided, crushed, chewed, or placed in water.
Important warnings
Serotonin Syndrome : Serotonin syndrome has been reported with SSRIs and SNRIs, including venlafaxine extended-release tablets, both when taken alone, but especially when co-administered with other serotonergic agents. If such symptoms occur, discontinue venlafaxine extended-release tablets and serotonergic agents and initiate supportive treatment.
Common side effects
Major Depressive Disorder - Adverse events in short-term studies that occurred in at least 5% of the patients receiving venlafaxine extended-release capsules and at a rate at least twice that of the placebo group were abnormal ejaculation, gastrointestinal complaints (nausea, dry mouth, and anorexia), CNS complaints (dizziness, somnolence, and abnormal dreams), and sweating. Social Anxiety Disorder - Adverse events in short-term studies that occurred in at least 5% of the patients receiving venlafaxine extended-release capsules and at a rate at least twice that of the placebo group were asthenia, gastrointestinal complaints (anorexia, dry mouth, nausea), CNS complaints (anxiety, insomnia, libido decreased, nervousness, somnolence, dizziness), abnormalities of sexual function (abnormal ejaculation, orgasmic dysfunction, impotence), yawn, sweating, and abnormal vision.
Interactions
7 DRUG INTERACTIONS MAOI's: concomitant use contraindicated ( 4 ).
If pregnant or breastfeeding
8.
Forms & strengths
100 MG Oral Tablet · 25 MG Oral Tablet · 37.5 MG Oral Tablet · 75 MG Oral Tablet · 50 MG Oral Tablet
Questions to ask your doctor or pharmacist
- Is this the right medicine for my condition, and how long should I take it?
- What side effects should I watch for, and which need urgent attention?
- Does this interact with my other medicines, supplements, or alcohol?
- What should I do if I miss a dose or take too much?