Abstract: The present invention is a menstrual cycle calculation device, including a calendar, which has a time period spanning more than two months displayed thereon. The device includes a first date indicator movable with respect to the calendar to identify a first date on the calendar. This first date corresponds to a first day for taking a first cycle of an oral contraceptive regimen. The device also includes at least one range indicator that moves in a corresponding manner with the first date indicator to show a range between two dates on the calendar. This range corresponds to days wherein a menstrual period is expected. The present invention also is directed towards a method for calculating dates of menstrual cycles several months in advance using such a device.

Abstract: A two component effervescent dentifrice composition, having a first alkali metal bicarbonate containing component which also contains a naturally occurring alkyl vanillyamide such as capsaicin and a second acid-containing dentifrice component; the first and second components being separated prior to use, whereupon when combined upon application to the teeth the dentifrice provides an enhanced sensory signal.