I've had an increase in my dosage Fluoxetine from 50mg to 80mg. What do I watch for to see if this new amount is too much? I've been on fluoxetine for several years. I do have a psychiatrist that I see. On Tuesday, based on the changes in my mood and the longevity of these changes, we changed my dosage. The dose has just been changed, but I want to know what sorts of things to watch out for to know if the dose is too much.