Generally, it takes between seven and 10 hours for a dog to digest food, but the many variables mean that only your vet can tell you how long it should be taking.
But how many days after Provera will your period start? When using Provera for amenorrhea (absence of menstrual periods) or abnormal vaginal bleeding, the medication is taken for 5 to 10 days. Menstrual-like vaginal bleeding usually occurs three to seven days after treatment ends.
Discuss your normal menstrual cycle with your physician, including the date of your last cycle. Take Provera with a full glass of water exactly as it is prescribed by your doctor. According to HealthSquare.com, Provera is usually taken once daily for five to 10 days every month to initiate a regular menstrual cycle. Vaginal bleeding usually begins within seven to 10 days after withdrawal from Provera therapy.