What medicine I take to get immediate periods

which medications can be used to get period immediatly ?
there a common used medication called : duphaston 
what is the dose of duphaston to get period :
- 1 pill every 12 hours 
- take the medications for 5 days 
- you will get period during the course time or shortly after that 
duphaston side effects :
1, Bleeding between menses
2. Painful periods
3. Breast pain
4. Feeling depressed
5. Nausea
6. Abnormal liver function
7. Pulsating headache
8. Hypersensitivity reactions
9. Weight gain
when not to take duphaston ?
1. allergy to the medication
2. breastfeeding or pregnancy 
3. current vaginal bleeding from unknown source