Light brown discharge usually indicates that your period is about to begin, so taking Norlut-N Tablet (Norethisterone) at this stage may not be very effective in delaying it. This medicine works best when taken a few days before the expected period. If you still want to delay your cycle, consult a doctor promptly for proper advice on timing and dosage. Avoid taking this medication without medical guidance, especially if you are unsure about your cycle or have any underlying health conditions.