For the last two years unable to experience sexual arousal or a desire for sex.not on any meds except for 100 mgs/day of lamictal. 23 yr old female.

Lamictal & libido: In clinical studies, Lamictal was associated with decreased libido in a very small percentage (.1 - 1%) of patients. However, these results are hard to interpret since most were taking other medications besides lamictal. I would wonder about other reasons for your decreased interest in sex -- such as depression, perhaps. Please discuss this with your doctor so possible causes can be explored.