I recently began seeing a therapist again for anxiety and depression and was prescribed one 25 mg of Zoloft every night. I took it about 3 years ago when I was 15 or so and only experienced foggy memory. I was on it for probably 5 months and the dose was probably higher but I don't remember what the exact dosage was. However, I'm 18 now and have been in a serious relationship for two years with a healthy sex life and I was wondering if any young females can answer whether it decreased, increased, or did not affect your libido. This wasn't relevant when I was younger because I wasn't sexually active therefore I didn't notice a difference.