You should not take Zyban if you have epilepsy or a seizure disorder, an eating disorder such as anorexia or bulimia, if you are using Wellbutrin, or if you have suddenly stopped using alcohol or sedatives. Do not take Zyban if you have taken a monoamine oxidase inhibitor (MAOI) such as isocarboxazid (Marplan), phenelzine (Nardil), rasagiline (Azilect), selegiline (Eldepryl), or tranylcypromine (Parnate) in the last 14 days.

You may have thoughts about suicide when you first start taking an antidepressant, especially if you are younger than 24 years old. Your doctor will need to check you at regular visits for at least the first 12 weeks of treatment.

Call your doctor at once if you have any new or worsening symptoms such as: mood or behavior changes, anxiety, panic attacks, trouble sleeping, or if you feel impulsive, irritable, agitated, hostile, aggressive, restless, hyperactive (mentally or physically), more depressed, or have thoughts about suicide or hurting yourself.

Avoid using Zyban to treat more than one condition at a time. If you take Wellbutrin for depression, do not also take Zyban to quit smoking. Too much Zyban can increase your risk of a seizure.

Do not smoke at any time if you are using a nicotine product along with Zyban. Too much nicotine can cause serious side effects. Avoid drinking alcohol while taking Zyban. Alcohol may increase your risk of a seizure while you are taking Zyban. If you drink alcohol regularly, talk with your doctor before changing the amount you drink. Zyban can cause seizures in people who drink a lot of alcohol and then suddenly quit drinking when they start using the medication.

Do not take Zyban if you have taken a monoamine oxidase inhibitor (MAOI) such as isocarboxazid (Marplan), phenelzine (Nardil), rasagiline (Azilect), selegiline (Eldepryl), or tranylcypromine (Parnate) in the last 14 days. You should not take Zyban if you have:

• epilepsy or a seizure disorder;
• an eating disorder such as anorexia or bulimia;
• if you are using a second form of bupropion;
• if you have suddenly stopped using alcohol or sedatives (such as Valium).

Zyban may cause seizures, especially in people with certain medical conditions or when using certain drugs. Tell your doctor about all of your medical conditions and the drugs you use.