Although the term “deodorant” is often used interchangeably with “antiperspirant” when talking about products applied to the armpits, antiperspirants are intended for directly stopping or reducing sweating, whereas deodorants are intended for reducing the odor associated with sweating. It’s important to understand that you can use your regular deodorant with the prescription antiperspirant (use antiperspirant at night as directed, and your regular deodorant in the morning).