Nicotine inhalation system 10mg (4mg delivered ... Inhaler: peak plasma concentrations of 49ng/mL reached within 15 minutes. Nasal spray: maximum venous concentrations of 2–12ng/mL reached ...

Prescription nicotine replacement also comes in the form of an inhaler or nasal spray, the agency added. Unfortunately, while nicotine replacement therapies can help ease withdrawal and cravings ...

Summary: Varenicline is the newest therapy approved by the Food and Drug Administration for smoking cessation and the first in its class targeting the neurobiology of nicotine addiction.