Cigarettes and Propecia

Hi

I am a 22 year old male. I just started to lose my hair about a year ago and have been on propecia for 3 months with some slight improvement. I am a smoker and was wondering that if you smoke while on propecia do you limit propecia’s effectiveness to grow new hair more than a person who does not smoke. Any help would be much appreciated.
Thanks.

There is no information on smokers who take Propecia. Best to stop smoking for your general health, but alas, maybe your parents have already told you this.