Levonorgestrel 0.75 mg tablets Levonorgestrel is an active isomer of norgestrel derived from nortestosterone. It is a potent inhibitor of ovulation and has androgenic activity.Indication & Dosage:Adult: 750 mcg orally as soon as possible or within 72 hrs of unprotected sexual intercourse, a 2nd dose is given after 12 hrs.Presentation:Blister Pack of two tablets.