Nicotine Patches for Weight Loss?

Factual Questions
1

It has been suggested to me that since:

  1. Smokers often smoke to keep weight off
  2. Nicotine has an effect on the appetite
  3. Nicotine has an effect on digestion (unlike Opal)
  4. Nicotine tends to make people feel calmer

…that a non-smoker could use a nicotine patch to lose weight.

Is this possibly true?