Even if i get 8 hours of sleep, I still feel tired all day long. I take 400 mg Lamitcal and 40 mg Latuda. I had to stop taking risperidone and buspar because they made me feel like a zombie all day. Do your psych meds also make you feel tired all damn day? I wondering if this is common for all psych drugs. To try and counter this, I basically drink caffeinated beverages all day long.