I’ve been on Sertraline for awhile now, for anxiety and depression and it works well. 50mg was my first dosage, with anxiety being my major side affect. My psychiatrist slowly raised my dosage to 150mg over 7 weeks before I felt better, it usually takes that long. I think it’s great to discuss your side affect, and dosage level with your doctor, and discuss another medication, as frustrating as it can be.