Modafinil may reduce the effectiveness of hormonal birth control techniques such as tablets, patches, or implants. This occurs because modafinil can accelerate the liver's breakdown of estrogen, a major component in many hormonal contraceptives, resulting in reduced hormone levels in the body. This may raise the likelihood of unwanted pregnancy. If you are using hormonal birth control while taking modafinil, you must take supplemental contraceptives such as condoms to assure protection. However, everyone's body reacts differently, so it's essential to discuss any concerns with your healthcare provider, who can provide tailored advice based on your individual condition and medical history...