I have been taking Prozac 10 mg x 3 yrs,  I wanted to stop taking it.  When I told my physician about it he strongly advised me against doing this.  He then increased the dosage 1o 15 mg.  I do not feel any better, in fact, I feel worse. I still cannot sleep at night without chemically inducing my sleep. My doctor then advised me to take Melatonin po  qhs.  This puts me to sleep but I still do not feel less depressed at all. Could the increase in dosage agitate my sleeping even moreso, and supress my appetite, make me feel nauseated and off balance.  I have only been taking the increase dosage x 1 week.  Please advise.  thank you...
You haven't mentioned which part of the day you take tablet Prozac. In case you have been taking it in evenings/nighttime, you may consider it switching to morning time after breakfast as this medicine can cause sleep disturbances in few patients if taken during nighttime. In case you are already taking morning dose then wait ND watch for improvement. However, if you have persistent side effect or feel no improvement with higher doses then consult your psychiatrist. A further escalation in doses or change in molecule may help. Meanwhile, a normal routine with physical exercise, and an optimistic thinking in any aspect of life is surely advisable. Wishing you a speedy recovery.