I just heard a clip on the chewable form of Pharma Gaba that may prove beneficial for afibbers with a high-stress load that is either a result of the AF or when the AF is a result of unremitting 24/7 stress.
The chewable form of PharmaGaba is the effective one for relaxing, antianxiety effects and this form works differently from the (swallowed) supplement.
Pharma Gaba produces the relaxing alpha waves yet does not cause sleepiness or any other impairment. It does relax enough, though, that taking at bedtime is very helpful.
The instructions I heard said to start with half a dose. They also said if a laxation effect occurs, then to take with food ....especially at higher doses rather on an empty stomach.