What is the adult dosage for varenicline for smoking cessation?

The adult dosage of varenicline (Chantix), a smoking cessation medication, can vary. Always follow the exact dosage your physician recommends. The varenicline dosage your doctor orders will be listed on the prescription label. Here is the usual dosage for adults who wish to stop smoking using varenicline, though your dosage may be different:

• .5 mg once a day for days 1 to 3.
• .5 mg two times a day for days 4 to 7.
• 1 mg two times a day from day 8 until the medication is completed, usually 12 weeks.