Bupropion Pharmacology


About Bupropion
Norepinephrine and dopamine reuptake inhibitor,nicotinic antagonist, aminoketone derivative, Atypical antidepressant, Smoking Cessation Aid.
Mechanism of Action of Bupropion
Bupropion blocks the re-uptake of neurotransmitter Dopamine and Noradrenaline from the synapse in to the presynaptic nerve terminal in the CNS. It has only a less activity in blocking the reuptake of Serotonin. Bupropion potentiates the noradrenergic and Dopaminergic activity and produces antidepressant activity.
Smoking cessation action: Bupropion is a competitive antagonist of nicotine.
Pharmacokinets of Bupropion
Absorption: Bupropion is well absorbed after oral administration but its bioavailability is 5 - 20 % in animals. Distribution: It is distributed in the body in protein bound form. Metabolism: It undergoes metabolism in the liver and produces active metabolites Excretion: Excreted primarily in urine and rest in faeces.
Onset of Action for Bupropion
Duration of Action for Bupropion
Half Life of Bupropion
20 hours for Bupropion and metabolite has half life of 33 - 37 hours
Side Effects of Bupropion
1. Nausea
2. Dry mouth
3. Insomnia
4. Agitation
5. Headache
6. Sedation
7. Anxiety
8. Tremor
9. Dizziness
10. Confusion
11. Hearing disturbances
12. Arrhythmia
13. Tachycardia
14. Vomiting
15, Anorexia
16. Excessive sweating
17. Priapism
18. Rash
Contra-indications of Bupropion
1. Hypersensitivity to Bupropion
2. Seizure disorder
3. Patient on MAOI (Monoamine oxidase inhibitor) therapy
4. Bulimia nervosa
Special Precautions while taking Bupropion
1. Liver disease
2. Severe kidney disease
3. Hypertension
4. Myocardial infarction
5. History of seizure disorder
6. Alcoholics
7. Patient on MAOI therapy (Discontinue the MAO inhibitor at least 2 weeks before Bupropion is started)
8. Use caution while driving vehicle, operating machine and activities requiring mental alertness or judgment
Pregnancy Related Information
Old Age Related Information
Use with caution
Breast Feeding Related Information
Children Related Information
NEONATES: contraindicated
Indications for Bupropion
1. Depression
2. Smoking cessation treatment
Interactions for Bupropion
Typical Dosage for Bupropion
Initial dose: 150 - 200 mg / day in 2divided doses. If sufficient response do not occur after 3 days dose can be increased to 300 mg / day in 3 divided doses.
Maximum dose: 450 mg / day
Smoking cessation treatment: Initial dose: 150 mg daily for 3 days then dose is increased to 300 mg / day in 2 divided doses for 7 - 12 weeks
Schedule of Bupropion
Storage Requirements for Bupropion
Store at 15 - 30 degree C in a tightly closed container. Protect from direct light and heat
Effects of Missed Dosage of Bupropion
Take the missed dose as soon as noticed and if it is the time for next dose then skip the missed dose. Continue the regular schedule. Do not double the dose.
Effects of Overdose of Bupropion
Give supportive measures and symptomatic treatment. Drug can be removed from the body by inducing emesis and by gastric lavage. Activated charcoal can be given to reduce the absorption of the drug. Seizure can be treated with IV Benzodiazepines

Home Delivery for Bupropion in Your City

Medicine India is just a publishing medium for medicine related information and does not provide services or sales of medicines including bupropion.

However, we do publish a comprehensive directory of Pharmacies, Chemists and Druggists in cities all over India. You can use this directory to find the medicine stores in your city (or area) that provide home delivery services for bupropion and other medicines and health products. Home delivery services for bupropion may be free or they may cost you depending on the pharmacy and the minimum order requirements. It would be best to get this clarified while placing the order.

Please be aware that you should take bupropion only if a doctor has recommended or prescribed it. Some or all pharmacies who provide a home delivery service for medicines might insist on a prescription for bupropion before they complete the sale. You can get this information while placing the order for bupropion with the pharmacy.

Bupropion is a generic medicine name and there are several brands available for it. Some of the brands for bupropion might be better known than bupropion itself. If the pharmacy that's willing to deliver medicines to your home doesn't have bupropion in stock, you can ask for one of the branded alternatives for bupropion.