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Venlafaxine: uses, side effects & brands
Venlafaxine is an SNRI for depression and anxiety. It belongs to the Antidepressant / anti-anxiety group. These treat depression, anxiety and related conditions, and some also help nerve pain or sleep.
Drug type — dosing is set by your doctor
| Measure | Range |
|---|---|
| Drug class | Antidepressant / anti-anxiety |
| Type | Prescription |
| Dose | Individual — ask your doctor or pharmacist |
What it is used for
- Depression
- Generalised anxiety disorder
- Panic disorder
- Social anxiety disorder
Common brand names
- India: Venlor, Veniz, Ventab
- Worldwide: Effexor
Common side effects
- Nausea
- Sweating
- Dizziness
- Sexual side effects
Before taking it — precautions
- Can raise blood pressure — have it checked regularly
- Do not stop suddenly; avoid with other serotonin-boosting medicines unless advised
- Tell your doctor about heart problems, glaucoma, epilepsy or bleeding problems
When to see a doctor urgently
- Thoughts of self-harm (urgent)
- Confusion, fever, shaking (serotonin syndrome) (urgent)
- Very high blood pressure or chest pain
Frequently asked questions
Why do I feel dizzy if I miss a dose?
Venlafaxine leaves the body quickly, so missed doses can cause withdrawal-like dizziness and nausea. Take it regularly and reduce slowly when stopping.
Does it raise blood pressure?
It can raise blood pressure, especially at higher doses, so regular checks are advised.
How long until it works?
Improvement usually starts after a few weeks, with full benefit taking longer.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.