Ormeloxifene, sold under the brand name Centron, is a non-steroidal selective estrogen receptor modulator (SERM) medication used as a contraceptive. It was approved for medical use in India in 1998. It is taken as a single oral dose of 60 mg per day. It works by blocking the action of estrogen in the body and thus prevents ovulation and pregnancy. It is also used in the treatment of endometriosis and dysfunctional uterine bleeding. Common side effects include headache, dizziness, nausea, and breast tenderness.
Based on extensive search results and information available in reliable medical databases, Centchroman is not a recognized or commercially available medication. It is neither listed in any major drug databases nor mentioned in any reputable medical references.