Why are you using Fludac? What kind of sexual problem you have? You can write answers later on. Common side effects of Fludac include insomnia, strange dreams, headache, dizziness, vision changes, tremors, feeling anxious or nervous, weakness, yawning, loss of appetite, nausea, vomiting, diarrhea, dry mouth, sweating, changes in weight or appetite, stuffy nose, sinus pain, sore throat, flu symptoms, decreased sex drive, or difficulty having an orgasm etc. These side effects are seen in early stage of treatment of Fludac and usually resolve with progress of time once you get accustomed to it. Side effects also resolve completely upon stoppage of Fludac. Advice 1. Continue Fludac as suggested by your doctor 2. Take Fludac in the morning 3. Consult with your doctor and discuss with him/her about your side effects. If you would have written about your main problem then I could have suggested an alternative medicine. You can write on this portal later on I hope this information will help you. I will be happy if you ask another question Thanks