Spray deodorant and vitimins

Question

Someone at work just told me that his Rabbi had told him that as spray deodorant can be revsered into a liquid and drunk, something that down-and-outs frequently do apparently, it cannot be used on Pesach and is considered chametz, can this be true (I am not a tramp and personally would never try this!!)? Similarly he said that vitimins used purely as a dietary suppliment, rather than for any specific health reason are chametz, I just wanted to make sure that all vitimins are OK, even ones that you chew. Thank you and chag sameach, Jonathan