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Zyban 150mg (Bupropion)

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What is Generic?

What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.


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Zyban is a smoking cessation medication available by prescription, used to reduce cravings and withdrawal symptoms associated with stopping nicotine use in tobacco products. This aids in preventing relapse into smoking or other tobacco use. Bupropion, an antidepressant, helps in quitting smoking by balancing brain chemicals, aiding users in overcoming the urge to smoke due to nicotine habit or addiction.

Fact Table
Formula C13H18ClNO
License US FDA
Bioavailability Unknown
Legal status Rx-Only
Chemical Name Bupropion
Elimination half-life 11–21 h
Dosage (Strength) 150mg
Pregnancy Consult Doctor
Brands Zyban
Protein binding 84%
PubChem CID 444
MedlinePlus a695033
ChEBI 3219
ATC code N06AX12
DrugBank DB01156
KEGG D07591
Routes of administration By mouth

Buy Zyban 150mg (Bupropion) online from online Canadian Pharmacy |


The standard dosage of Zyban is one tablet taken twice daily, with or without food, as prescribed. When taken twice daily, ensure that the doses are at least 8 hours apart. Avoid taking Zyban near bedtime, as it may impair sleep.


The active ingredient in Zyban is Bupropion.


Inform your doctor of any history of brain tumors, arteriovenous malformation, eating disorders, alcohol or drug dependence, diabetes, heart disease, high blood pressure, kidney or liver problems, or eye disorders like glaucoma before starting Zyban. It may not be suitable for those who recently ceased using sedative medication for seizures or alcohol dependency. Use of this medication can cause dizziness, and older adults may be more susceptible to its side effects.


Zyban may negatively interact with other prescription medications, including aripiprazole, amitriptyline, amlodipine, atorvastatin, citalopram, clonazepam, duloxetine, diazepam, gabapentin, levothyroxine, pregabalin, metformin, mirtazapine, modafinil, omeprazole, paroxetine, prednisone, propranolol, quetiapine, methylphenidate, temazepam, tramadol, alprazolam, and sertraline. Always inform your doctor of all medications you are currently taking before getting a prescription for Zyban.

Side Effects

Side effects of Zyban may include dry mouth, dizziness, drowsiness, nausea, diarrhea, fatigue, constipation, blurred vision, sleep difficulties, increased sweating, taste changes, or stomach pain. If you experience side effects, consult your doctor to discuss alternative smoking cessation medications.

Frequently Asked Questions about Zyban (Bupropion)

What is Zyban used for?

Zyban (bupropion) is primarily used to help people quit smoking cigarettes. It can also be used to treat seasonal affective disorder (SAD) and depression in some cases.

How does Zyban work?

The exact mechanism of how Zyban works to aid smoking cessation is not fully understood, but it is believed to affect dopamine and norepinephrine levels in the brain, reducing cravings and withdrawal symptoms.

What are the side effects of Zyban?

Common side effects of Zyban include dry mouth, nausea, dizziness, insomnia, headache, and tremor. More serious side effects, though rare, can include allergic reactions, seizures, and suicidal thoughts.

How long does it take for Zyban to work?

It can take several weeks for Zyban to reach its full effect in helping people quit smoking. It's important to stick with the medication and follow your doctor's instructions even if you don't see immediate results.

Can I take Zyban if I have other health conditions?

It's important to tell your doctor about any other health conditions you have before taking Zyban, especially if you have epilepsy, liver or kidney disease, or a history of mental health problems.

Does Zyban interact with other medications?

Yes, Zyban can interact with other medications, so it's important to tell your doctor about all the medications you are taking, including over-the-counter drugs and herbal supplements.

How long should I take Zyban?

The duration of Zyban treatment varies depending on individual needs. Some people may only need to take it for a few months, while others may need to take it for a year or longer.

Can I drink alcohol while taking Zyban?

It's best to avoid alcohol while taking Zyban as it can increase the risk of side effects.

Is Zyban addictive?

No, Zyban is not considered addictive. However, it's important to follow your doctor's instructions and not take more than the prescribed dose.

What should I do if I miss a dose of Zyban?

If you miss a dose of Zyban, take it as soon as you remember. However, if it is close to the time for your next dose, skip the missed dose and continue with your regular schedule. Do not take a double dose.

IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.