How do you know any OC is working, for that matter? The pill I purchased is Saheli - here are a couple clinical studies and the failure rates:
Post Marketing Surveillance
Phase I-PMS
No. of Centers 8
No. of Volunteers 793
Dosage 30 mg twice a week for the first 3 months and 30 mg once a week from the fourth month onwards. One center also conducted studies with 60 mg loading dose followed by 36 mg weekly dose
No. of women months of use 8472
No.of method failures 6
No: of patient failures 16
The study conducted that Saheli is safe for contraceptive use among women.
Phase II-PMS
Number of center 1
Number of volunteers 6000
No. of women months of use 12933
No. of failures 3
Side Effects observed Ammenorhea was observed in 0.7% of the cases.
The study concluded that Saheli is a safe and reliable means of contraception.
Phase III-PMS
No. of Centers 3
No. of Volunteers 607
No. of women months of use 5494
No. of patient failures 9
No. Of method failures 15
Saheli was found to be safe as an oral contraceptive among women in this particular study.
Summary of the PMS Studies
Total no. of Method Failures 24
Total No. of Women Months of use 26899
The Pearl Index calculated at the end of the study has been found to be = 1.07.
The study also concluded that the drug is safe for use by women as a contraceptive. The only side effect that has been reported is delayed menstrual cycles. This aspect should be communicated to the user at the time of initiation to ensure better user compliance.
I pulled this from website:
http://www.hindlatex.com/mono.html