Quitting isn’t a single event—it’s a process that begins days before you stub out your final cigarette. The first stage is starting your quit‑smoking medications on schedule so that varenicline and bupropion have time to reach therapeutic levels, prazosin steadies your nerves, and ondansetron stands by to calm any nausea. When Quit Day dawns, your brain chemistry is already shifting away from nicotine, giving you a head‑start onsuccess.
Nicotine addiction is partly chemical. Varenicline occupies the same receptors nicotine loves, reducing cravings and making any “just one puff” far less pleasurable. Bupropion lifts dopamine and norepinephrine, easing withdrawal mood swings. Both drugs need at least seven days in your system to work at full strength. Beginning them on time means you’ll fight urges with medicine, not just willpower.