Thanks for your suggestions LucyG:
This morning I purchased Weyland: Lithium Orotate - 10mg of Elemental Lithium (as Lithium Orotate) per Vegetarian Capsule. I ordered 3 Bottles (180 capsules for $49.95. Plan to try taking one every evening. If it works, it would be cheaper the the PDoc and prescriptions route because I pay out of pocket for these things. I won't get it until later this week. I will let everyone know how it goes.