I've seen ads for chantix, & I need to know if its safe for me to take. I have smoked for 30 years, i have suffered from seizures all my life, i've also had 2 heart attacks, and need to know the risks if i were to try the quit smoking aid (chantix). i need to quit and i fear that i may have bigger trouble with my seizures. please help me to know what i can take that won't put me at more risk. thank you