Norethindrone (brand name Ortho-Novum®), also known as norethisterone or mestranol, is a synthetic oral progestin. It is used in select cases of chronic egg laying in poultry.
Caution: When administered to a Rouen duck, it caused severe hypertension.
Disclaimer: Use at your own risk. We assume no responsibility for the use of the drug, dosages given and for any misstatement, error, negligent, or otherwise.