My husband just started taking Aricept 10mg daily. He s been very tired and wants to rest all day. He s dizzy with an upset stomach, depressed, can t sleep. I called the Dr., he said to split the pill in half, 5mg in morning and 5mg at night. No change. He s also on Atorvastatin 80mg, Omeprazole 20mg, Namenda XR 28mg, Diltiazem 120mg, Losartan 50mg, and preservision for his eyes. What do you think?