Mala-N is an oral contraceptive pill containing levonorgestrel and ethinyl estradiol. It is supplied free through public health centers. The pill is taken daily for 21 days, followed by a 7 day break when menstruation occurs, then a new packet is started on the 5th day of the next period. Mala-N works by preventing ovulation. It is nearly 100% effective but requires motivation and discipline to take the pill daily. Certain medical conditions and other factors can make some women unsuitable for the pill. Potential side effects include nausea, headaches, and changes to periods.