The Lydia Postpartum T Cu 380 A IUCD interferes with the ability of sperm to survive and to ascend the fallopian tubes where fertilization occurs. It alters or inhibits sperm migration, ovum transport and fertilization. It stimulates a sterile foreign body reaction in endometrium potentiated by copper.
Effectiveness: The Cu T-380 A is highly effective (>99% effective). There are 0.6 to 0.8 pregnancies per 100 women in first year of use.
The Cu T-380 A is effective for 10 years of continuous use. It can, however, be used for whatever time period the woman wants, up to 10 years.