Never tried either one. Don't know if my Neuro will approve; he seems to think that I am a bit too enthusiastic about testing some of the limits on the labels. Everyone says I should follow a strict agenda for taking the pills, but that may not work for me, as I have never had a strict agenda in anything. I take pills when I feel like it. I sleep when I am tired; I eat when I am hungry. I learned that from a cat. So I take drugs when my body starts singing Ozzie Osbourne songs. But then it is hard to tell if it is an overdose or an underdose. I would prefer to follow a strict agenda and be very regular, but it is as if my body won't let me. It demands a pill, or food, or sleep, at wildly different times. Breakfast at 3 a.m., asleep at noon, etc. Random unpredictability.