Paroxetine
Generic Name: Paroxetine
Uses & Medical Indications
Treatment of depression, OCD, panic disorder, social anxiety disorder, PTSD
Major Depressive Disorder, GAD, PTSD, Premenstrual Dysphoric Disorder
Work Mechanism & Pharmacology
Patient Overview of Work Mechanism
Paroxetine works at the cellular level to correct underlying biochemical imbalances, reduce clinical symptoms, and support overall health.
Clinical Mechanism of Action (MoA)
Paroxetine 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
20 mg daily, usually in the morning
Not generally recommended for pediatric patients
Start at 10 mg daily; max 40 mg/day
50-60 mg/day (depending on indication)
Initial 10 mg/day if CrCl < 30 mL/min
Initial 10 mg/day in severe hepatic impairment
Side Effects & Safety Warnings
Nausea, somnolence, sexual dysfunction, sweating, weight gain
Suicidal thoughts, serotonin syndrome, bleeding risks, hyponatremia
Use with MAOIs, thioridazine, pimozide
Black box warning for suicidality in children/young adults. Highest risk of withdrawal syndrome among SSRIs.
Interactions (Drugs, Food & Alcohol)
MAOIs, NSAIDs, tramadol, tamoxifen, CYP2D6 substrates
N/A
May increase CNS depression
Identified Clinical Drug Interactions for Paroxetine:
Severe Serotonin Toxicity via Reversible MAO Inhibition
Pregnancy & Breastfeeding Safety
Avoid in first trimester (cardiac malformations)
Present in human milk; use caution
Patient Counseling & Practical Advice
Do not stop abruptly. May take 4-6 weeks for full effect. Report worsening mood.
Take as soon as remembered. Skip if near next dose.
Mood changes, signs of bleeding, sodium levels in elderly
Related Medicines in Selective Serotonin Reuptake Inhibitors (SSRIs)
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 Paroxetine 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.