Could you take nicorette (nicotine gum) with nitro-dur?

Yes: For a long while, the manufacturers put on their package insert that people with heart disease shouldn't use nicotine replacement therapy (NRT). However, it is entirely clear that the greatest risk to health in people with heart disease is continued tobacco smoking, and NRT is clearly safest. What I would NOT do is have a cigarette anywhere near using a nicotine patch or gum. Good luck quitting.