Chewing on Propecia/Avodart?

[DimeMachine]

Hi,
I have never been able to swallow pills no matter how many times I tried or used different methods. Also, I heard that some medicines like time released pills aren't supposed to be chewed. So while I will keep practicing to swallow pills eventually, until then I was wondering if it is okay to just chew on propecia (and maybe avodart in the future) and will chewing lessen the effect of the medicine? Thank you!