For general information only. Not a substitute for professional medical advice.
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Educational Medication GuideRxClass: NDRI

Bupropion

Generic Name: Bupropion

Common Brand Names: Wellbutrin, Zyban
Dosage Form:Tablet (Extended Release)
Route:Oral
Pregnancy Category:C
Last Reviewed:9/21/2026

Uses & Medical Indications

Treat depression, smoking cessation

Medical Conditions Treated:

Major depressive disorder, SAD

Work Mechanism & Pharmacology

How It Works

Patient Overview of Work Mechanism

Bupropion works at the cellular level to correct underlying biochemical imbalances, reduce clinical symptoms, and support overall health.

Clinical Mechanism of Action (MoA)

Bupropion exerts targeted therapeutic activity by interacting with specific cellular receptors, enzymatic pathways, or biological signaling cascades to relieve symptoms and restore physiological balance.

Primary TargetBupropion hydrochloride
Therapeutic FamilyAntidepressant
Administration RouteOral

Dosage & Administration Guidelines

Adult Dosage

150-300 mg daily

Pediatric Dosage

Not recommended

Elderly / Geriatric Considerations

Use caution, lower doses

Maximum Dose Limit

450 mg/day

Renal Impairment:

Reduce frequency or dose

Hepatic Impairment:

Max 150 mg every other day in severe cirrhosis

Side Effects & Safety Warnings

Common Side Effects

Insomnia, dry mouth, headache

Serious Adverse Reactions

Seizures, suicidal thoughts

Contraindications:

Seizure disorder, eating disorders

Important Warnings & Precautions:

Risk of seizures is dose-related

Interactions (Drugs, Food & Alcohol)

Drug-Drug Interactions:

MAOIs, drugs lowering seizure threshold

Food & Dietary Interactions:

N/A

Alcohol Interaction Warning:

Avoid, lowers seizure threshold

Pregnancy & Breastfeeding Safety

Pregnancy Safety

Use if benefit outweighs risk

Breastfeeding / Lactation

Use caution

Patient Counseling & Practical Advice

How to Take:

Take in morning to avoid insomnia

What to Do if You Miss a Dose:

Skip missed dose

Recommended Monitoring & Lab Tests:

Mood changes, suicidality

Emergency Medical Warning

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.

Emergency Safety Protocol: If an intentional or accidental overdose is suspected, contact your regional Poison Control Center or emergency services immediately. Do not induce vomiting unless strictly advised by emergency healthcare personnel.
Educational Sources & References

Content for Bupropion 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
Published by: Medi Info Hub TeamLast Updated: 10/19/2026

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.