Do not take more or less zyban than prescribed. Since this drug can cause sleeplessness at first, it is best not to take near bedtime. It is advised to continue smoking for the first week after starting this drug, until it reaches higher levels in your blood. Do not smoke if using any nicotine products with this drug. Too much nicotine can cause serious side effects.
Zyban pills are generally well tolerated.
Dry mouth, headache, increased sweating, constipation, anxiety and fatigue may occur. If these effects persist or worsen, notify your doctor. All rights reserved.