"as long as i take  lithium capsules and not the tablets, i have no side effects.  presently on 900 mg a day.  doesn&#039;t make me sleepy as i have insomnia.  tablet gave me a salty taste in my mouth.  i drink about one more 16.9 oz bottled water than normal.  stabilized my moods tremendously, easy to take.  i take with a protein shake, almond milk, applesauce but not on an empty stomach or then it gives me a slight stomach ache."