Zyban is a sustained-release medication that is nicotine-free and is used to help one stop smoking. Zyban has helped smokers to stop, even those who have smoked 20 years or more. Zyban is the first nicotine-free pill that, as part of a comprehensive program from your healthcare professional, can help you quit smoking. Zyban is prescription medicine available for smokers 18 and older.

Zyban Directions: Swallow Zyban whole. Do not crush or chew them or the sustained activity of the drug will be destroyed and the chances of side effects occurring may be increased. Take Zyban as directed, usually twice daily for 7 to 12 weeks. Do not take more or less Zyban than prescribed. Since Zyban 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 Zyban, until it reaches higher levels in your blood. Do not smoke if using any nicotine products with Zyban. Too much nicotine can cause serious side effects.