Venlafaxine
Generic Name: Venlafaxine
Uses & Medical Indications
Treatment of major depressive disorder, generalized anxiety disorder, social anxiety disorder, panic disorder
Depression, GAD, SAD, Panic disorder
Work Mechanism & Pharmacology
Patient Overview of Work Mechanism
Venlafaxine works at the cellular level to correct underlying biochemical imbalances, reduce clinical symptoms, and support overall health.
Clinical Mechanism of Action (MoA)
Venlafaxine exerts targeted therapeutic activity by interacting with specific cellular receptors, enzymatic pathways, or biological signaling cascades to relieve symptoms and restore physiological balance.
Dosage & Administration Guidelines
75 mg/day in divided doses (IR) or once daily (ER), increase gradually
Not approved; off-label for anxiety/depression
Use caution, start at lower doses
225-375 mg/day depending on formulation and setting
Reduce dose by 25-50% in mild to moderate impairment
Reduce dose by 50% in mild to moderate impairment
Side Effects & Safety Warnings
Nausea, somnolence, dry mouth, sweating, abnormal ejaculation, anorexia
Suicidal thoughts, serotonin syndrome, sustained hypertension, hyponatremia
Concomitant use with MAOIs
Suicidality in children/young adults. Discontinuation syndrome if stopped abruptly.
Interactions (Drugs, Food & Alcohol)
MAOIs, other serotonergic drugs, NSAIDs/aspirin (bleeding risk)
Take with food
May increase CNS depression
Identified Clinical Drug Interactions for Venlafaxine:
Serotonin Syndrome & Reduced Convulsive Threshold
Pregnancy & Breastfeeding Safety
Risk of neonatal adaptation syndrome
Excreted in milk, potential for adverse effects in infant
Patient Counseling & Practical Advice
Do not stop taking abruptly. Report worsening depression or suicidal thoughts.
Take as soon as remembered. Do not take two doses at once.
Mental status, blood pressure, serum sodium
When to Seek Urgent Medical Attention
Seek immediate emergency medical care (call emergency services or proceed to the nearest emergency department) if you experience signs of a life-threatening allergic reaction (anaphylaxis: facial, lip, tongue, or throat swelling causing airway obstruction), severe cutaneous blistering with skin peeling, sudden intense chest pain, or symptoms of overdose.
Content for Venlafaxine was synthesized from standardized public health monographs, official pharmacopoeias, and health authorities:
- Central Drugs Standard Control Organization (CDSCO) — National List of Essential Medicines
- World Health Organization (WHO) — Model List of Essential Medicines
- Indian Pharmacopoeia Commission (IPC) — Indian Pharmacopoeia Drug Monographs
- National Health Service (NHS) — Medicines A to Z Clinical Guidelines
The information provided on this website is for educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.